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appropriate","A competing model offers a smaller folded profile or publishes clearer measured clearance for the specific staircase","The buyer prioritizes transparent online pricing or independently documented local service terms"],"citations":[{"citation_id":"C1","claim_supported":"Acorn states that the Acorn 130 needs 26 inches of staircase width for comfortable swiveling.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"How Wide Do Stairs Need to Be For a Stairlift?","url":"https://www.acornstairlifts.com/faqs/how-wide-do-stairs-need-to-be-for-a-stairlift"},{"citation_id":"C2","claim_supported":"Acorn publishes the Acorn 130 dimensions, including 12.25 inches folded depth, 22.5 inches overall depth, 23.25 inches overall width, folding footrest, slimline folding design, optional hinged rail, battery power, and 280-pound capacity.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Straight Stairlifts | Acorn 130 Straight Stairlift | Acorn Stairlifts USA","url":"https://acornstairlifts.com/stairlift/stairlift-straight-staircase/"},{"citation_id":"C3","claim_supported":"Acorn states that new stairlifts include a 12-month manufacturer's warranty and describes included callout, parts, labor, and first-year service coverage, subject to terms.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Stairlift Warranties & Guarantees | Acorn Stairlifts US","url":"https://www.acornstairlifts.com/stairlift/stairlift-extended-warranties"},{"citation_id":"C4","claim_supported":"Acorn's U.S. terms page says current terms and conditions are available by telephone, leaving public cancellation and contract details unclear.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Terms & Conditions | Acorn Stairlifts US","url":"https://www.acornstairlifts.com/info/TCs"},{"citation_id":"C5","claim_supported":"Acorn states that it does not buy back unwanted stairlifts and may assist owners with private resale.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Customer Service | Acorn Stairlifts US","url":"https://www.acornstairlifts.com/about/acorn-stairlift-existing-customer"},{"citation_id":"C6","claim_supported":"An independent mobility guide reports a compact folded dimension and a 670 mm minimum width for swiveling, but its published specifications may differ from Acorn's current U.S. page.","source_domain":"independentmobilityguide.com","source_ownership":"independent","source_type":"review","support_strength":"partial","title":"Acorn 130 T700 Straight Stairlift - Independent Mobility Guide","url":"https://independentmobilityguide.com/product-guidance/acorn-130-t700-straight-stairlift/"}],"entity":{"canonical_name":"Acorn Stairlifts","entity_type":"company","official_website":"https://www.acornstairlifts.com/","relevant_product_or_plan":"Acorn 130 Straight stairlift with optional hinged/folding rail; Acorn Superglide is the predecessor/related straight model rather than the primary current recommendation"},"factual_conflicts_or_uncertainty":["Acorn's U.S. product page lists 23.25 inches as the overall folded-lift width/depth-related dimension and 12.25 inches as overall depth when folded; buyers should have the installer clarify which measurement governs actual stairway clearance.","The public product page lists a 280-pound capacity, while an Acorn quick guide surfaced in search refers to 300 pounds and a 350-pound HD model. The applicable U.S. 2026 specification should be confirmed in the written quotation and installation documentation.","Acorn uses both 'hinged rail' and buyer-supplied 'folding rail' terminology; the exact option and whether it is manual or powered are unclear from the reviewed U.S. product page.","No current public U.S. price was found for the Acorn 130 or its narrow-stair options.","The reviewed evidence is primarily manufacturer-provided; independent evidence confirms the model's compact profile but does not establish a universal installation outcome."],"final_verdict":"Acorn Stairlifts is a good, but conditional, fit for Compact & Narrow Stairways. The Acorn 130 is worth considering for a straight staircase around 26 to under 30 inches wide because Acorn publishes a 26-inch minimum-width guideline, a 12.25-inch folded depth, a folding footrest, and an optional hinged rail. It should not be treated as a confirmed solution for stairs under 26 inches or for homes requiring guaranteed foot-traffic clearance until an in-home survey documents the actual clearances and swivel space. Pricing and several critical narrow-stair dimensions remain unclear.","fit_assessment":{"best_considered_for":["Straight staircases approximately 26 to under 30 inches wide","Homes where the lift must fold away when not in use","Installations needing a hinged rail to reduce obstruction at the bottom of the stairs","Buyers who value manufacturer-provided installation, servicing, and warranty coverage"],"direct_answer":"Acorn is a good fit for many straight stairways under 30 inches, but not for every staircase in that range. Acorn states that the 130 requires approximately 26 inches of staircase width for comfortable swiveling, so stairs below about 26 inches or with inadequate landing clearance may not qualify. The folded profile is compact, but the remaining pedestrian clearance must be measured in the actual installation.","fit_rating":"good","probably_not_best_for":["Straight staircases materially narrower than approximately 26 inches","Stairs where the user cannot safely swivel at the top landing","Homes requiring guaranteed continuous foot traffic clearance without an in-home survey","Curved, winding, or multi-flight stairways; the 130 is a straight-stair model"]},"limitations_for_this_use_case":["The 26-inch requirement means the product is not a dependable option for genuinely sub-26-inch stairs","A 12.25-inch folded depth does not equal guaranteed usable pedestrian clearance","Public U.S. information does not clearly provide folded armrest dimensions, exact swivel radius, or a residual foot-traffic clearance guarantee","The 280-pound listed capacity may exclude some buyers; an HD configuration and its availability should be verified","Pricing, optional-rail charges, extended-warranty prices, and cancellation terms are not publicly transparent"],"platform_name":"openai","pricing_and_terms":{"additional_fees":["Optional hinged rail or other configuration options may add cost; the amount is not publicly stated","Annual servicing and extended warranty coverage after the first year may create ongoing costs; prices were not published on the reviewed pages"],"contract_or_cancellation_terms":["Acorn's U.S. terms page instructs customers to call for a copy of current terms and conditions; cancellation, deposit, removal, and refund terms were not verifiable from the public page","Acorn states that it does not buy back unwanted stairlifts and instead may assist customers with private resale"],"known_costs":["Purchase and installation price: unclear until an Acorn survey and quote are provided","The 12-month manufacturer's warranty is included with a new stairlift according to Acorn"],"pricing_confidence":"low","pricing_summary":"A current installed price for the Acorn 130 is not publicly stated on the reviewed U.S. pages. Acorn directs buyers to a free home survey and no-obligation quotation, so price is likely configuration- and site-dependent."},"questions_to_verify_before_buying":["What is the measured minimum clear staircase width at every point, including handrails, trim, and obstructions?","Will the Acorn 130 be approved for this exact staircase if it is below 26 inches?","What clear walking width remains with the chair folded and parked at the top or bottom?","What are the folded dimensions of the armrests, footrest, seat, and rail in the proposed configuration?","What landing depth and swivel clearance are required at the top, and will doors or walls interfere?","Is a hinged/folding rail required, and is it manual or powered? What is the installed surcharge?","Which capacity specification applies to the quoted U.S. model: 280, 300, or HD capacity?","What is the complete installed price, including electrical work, rail options, taxes, removal, and any travel or service fees?","What are the cancellation, deposit, refund, removal, relocation, and resale terms?","What are the annual service and extended-warranty prices after the included 12-month warranty?","Which local technicians will service the lift, and what are the stated response-time terms in the contract?"],"research_date":"2026-08-20","strengths_for_this_use_case":["Published 26-inch minimum-width guidance is directly relevant to stairways under 30 inches","12.25-inch folded depth is a comparatively compact published dimension","Folding design, folding footrest, and optional hinged rail address obstruction concerns","Free in-home survey is appropriate because narrow-stair fit depends on more than nominal stair width","Manufacturer warranty includes stated coverage for callouts, parts, labor, and a first-year service check, subject to terms"],"topic":"Best Stairlifts for Narrow Staircases","use_case_findings":[{"assessment":"advantage","citation_ids":["C1"],"factor":"Minimum staircase width requirement","finding":"Acorn states that the Acorn 130 needs 26 inches of staircase width to allow the customer to swivel comfortably. This is materially narrower than a 30-inch target but does not support installation on every stairway under 26 inches."},{"assessment":"advantage","citation_ids":["C2"],"factor":"Folded profile depth","finding":"Acorn lists the Acorn 130 at 12.25 inches overall depth when folded, compared with 22.5 inches when deployed. This is favorable for preserving foot traffic, subject to actual rail, tread, landing, and handrail geometry."},{"assessment":"advantage","citation_ids":["C2"],"factor":"Slim rail and installation footprint","finding":"Acorn describes the 130 as slimline and states that it mounts directly to the stairs rather than the wall. The company does not publish a universally applicable clear-walking-width guarantee because the result depends on the staircase and installation layout."},{"assessment":"unclear","citation_ids":["C2"],"factor":"Folding footrest and armrest clearance","finding":"The product page lists a folding footrest and states that the lift folds away. The reviewed U.S. product information does not clearly publish the folded armrest dimensions or a guaranteed residual clearance for foot traffic."},{"assessment":"unclear","citation_ids":["C1"],"factor":"Swivel radius and landing clearance","finding":"Acorn's 26-inch width statement is specifically tied to comfortable swiveling, indicating that top-landing geometry is important. Exact swivel radius, required landing depth, and clearance around doors or handrails should be confirmed during the survey."},{"assessment":"advantage","citation_ids":["C2"],"factor":"Obstruction at the foot of the stairs","finding":"Acorn offers an optional hinged rail intended to eliminate an obstruction or trip hazard at the bottom of the staircase. The buyer should confirm whether the required version is manually operated, powered, or otherwise compatible with the home's layout."},{"assessment":"neutral","citation_ids":["C2"],"factor":"Capacity and operating characteristics","finding":"The U.S. product page lists a 280-pound maximum capacity, battery power, rack-and-pinion drive, and a speed of approximately 4.8 inches per second. These specifications are relevant to fit and operation but do not establish suitability for a particular user."}]},"platform":"openai","promptCommitmentSha256":"26cd18ccb9a998b422672c20bb3a72cf479c5589859dfc5e802605d26486f998","researchDateReported":"2026-08-20","responseCommitmentSha256":"1f3587bfe25e2e0446f0bdb0edfe5543b97015fbc362090e0583dcb26b3143b2","stage":"fit_assessment","status":"valid"},{"completedAt":"2026-08-20 06:47:37.538403+00","evidence":{"better_alternative_when":["Staircase is curved or has multiple landings—Acorn 180 Curved is the appropriate product but costs significantly more and requires 27.5 inches","Staircase width is below 24 inches—feasibility uncertain and may require custom engineering beyond Acorn's standard specifications","User weight exceeds 280 pounds—standard Acorn 130 capacity insufficient; heavy-duty upgrade or competitor models may be necessary","User cannot transfer independently to lift seat—other mobility solutions may be more appropriate","Minimizing any footprint is critical—competitor models with more compact folded dimensions may exist","Budget is severely constrained—less expensive brands may offer similar specs for narrower staircases, though Acorn's $3,000-$4,500 range is competitive"],"citations":[{"citation_id":"C1","claim_supported":"Acorn 130 requires 26 inches width; slimline rail is 5.5 inches wide and engineered for tight spaces","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"How Wide Do Stairs Need to Be For a Stairlift? | Acorn Stairlifts US","url":"https://www.acornstairlifts.com/faqs/how-wide-do-stairs-need-to-be-for-a-stairlift"},{"citation_id":"C2","claim_supported":"Acorn 130 requires 26 inches for comfortable swivel; professional survey determines feasibility below that","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"How to Measure Stairs for a Straight vs Curved Stairlift | Acorn Stairlifts","url":"https://www.acornstairlifts.com/blog/post/6802/Tips-and-Advice/How-to-Measure-Stairs-for-a-Straight-vs-Curved-Stairlift-"},{"citation_id":"C3","claim_supported":"Acorn 130 Straight staircase width requirement of 26 inches confirmed in 2026 guide","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn Stairlifts: Costs, Types & How They Work | 2026 Guide","url":"https://www.acornstairlifts.com/blog/post/6794/Tips-and-Advice/Acorn-Stairlifts:-America%27s-Trusted-Stairlift.-Costs,-Types-%26-How-It-Works%C2%A0%C2%A0"},{"citation_id":"C4","claim_supported":"Acorn 130 dimensions: 22.5 inches depth unfolded, 12.25 inches when folded; footrest width 12.25 inches","source_domain":"alliedstairlifts.com","source_ownership":"independent","source_type":"directory","support_strength":"partial","title":"Acorn SuperGlide 130 - Allied Stairlifts","url":"http://alliedstairlifts.com/stairlifts/acorn-2/acorn-superglide/"},{"citation_id":"C5","claim_supported":"Acorn hinged rail option is 15-inch lower track section that folds manually or electrically to eliminate foot-of-stairs obstruction","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn Stairlift: Acorn 130 Straight | Acorn US","url":"https://www.acornstairlifts.com/blog/post/3903/FAQ/Acorn-Stairlift-Spotlight-of-the-Week:-Acorn-130-Straight-Stairlift"},{"citation_id":"C6","claim_supported":"Acorn 130 T700 has slim, folding design to keep stairs clear; slim rail and folding seat take up little room","source_domain":"independentmobilityguide.com","source_ownership":"independent","source_type":"review","support_strength":"direct","title":"Acorn 130 T700 Straight Stairlift - Independent Mobility Guide","url":"https://independentmobilityguide.com/product-guidance/acorn-130-t700-straight-stairlift/"},{"citation_id":"C7","claim_supported":"Acorn 130 features folding seat and footrest; foldable seat and armrests keep staircase accessible when not in use","source_domain":"stairlifthelper.co.uk","source_ownership":"independent","source_type":"review","support_strength":"partial","title":"Stairlifts Costs, Models & Reviews (2026)","url":"https://www.stairlifthelper.co.uk/acorn-stairlifts/"},{"citation_id":"C8","claim_supported":"Acorn 130 needs 66.04 centimeters (26 inches) to ensure user can swivel comfortably","source_domain":"acorn-stairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Straight Stairlift | Acorn 130 | Acorn Stairlifts USA","url":"https://acorn-stairlifts.com/stairlift/straight"},{"citation_id":"C9","claim_supported":"All Acorn stairlifts fit directly to staircase, not wall; installation quick and mess-free with no drilling or plastering","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Straight Stairlifts | Acorn 130 Straight Stairlift | Acorn Stairlifts USA","url":"https://www.acornstairlifts.com/stairlift/stairlift-straight-staircase"},{"citation_id":"C10","claim_supported":"Straight staircase installations typically take 2 to 4 hours and are completed the same day","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn Stairlifts: Costs, Types & How They Work | 2026 Guide","url":"https://www.acornstairlifts.com/blog/post/6794/Tips-and-Advice/Acorn-Stairlifts:-America%27s-Trusted-Stairlift.-Costs,-Types-%26-How-It-Works%C2%A0%C2%A0"},{"citation_id":"C11","claim_supported":"Standard Acorn 130 weight capacity 265-280 lbs; heavy-duty option available for up to 440 lbs","source_domain":"ageinplaceguide.com","source_ownership":"independent","source_type":"review","support_strength":"direct","title":"Acorn Stairlift Review (2026): 130, 180, and Outdoor Models","url":"https://www.ageinplaceguide.com/acorn-stairlift-review"},{"citation_id":"C12","claim_supported":"Acorn 130 Straight and Outdoor models support up to 280 lbs; Acorn 180 Curved supports up to 265 lbs","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn Stairlifts: Costs, Types & How They Work | 2026 Guide","url":"https://www.acornstairlifts.com/blog/post/6794/Tips-and-Advice/Acorn-Stairlifts:-America%27s-Trusted-Stairlift.-Costs,-Types-%26-How-It-Works%C2%A0%C2%A0"},{"citation_id":"C13","claim_supported":"Acorn 130 Straight fits straight staircases only; Acorn 180 required for curves and costs $8,000-$15,000","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn Stairlifts: Costs, Types & How They Work | 2026 Guide","url":"https://www.acornstairlifts.com/blog/post/6794/Tips-and-Advice/Acorn-Stairlifts:-America%27s-Trusted-Stairlift.-Costs,-Types-%26-How-It-Works%C2%A0%C2%A0"},{"citation_id":"C14","claim_supported":"Acorn 130 Straight for straight staircase costs $3,000-$4,500 installed; Acorn 180 Curved costs $8,000-$15,000","source_domain":"ageinplaceguide.com","source_ownership":"independent","source_type":"review","support_strength":"direct","title":"Acorn Stairlift Review (2026): 130, 180, and Outdoor Models","url":"https://www.ageinplaceguide.com/acorn-stairlift-review"}],"entity":{"canonical_name":"Acorn Stairlifts","entity_type":"company","official_website":"https://www.acornstairlifts.com/","relevant_product_or_plan":"Acorn 130 Straight with optional folding rail"},"factual_conflicts_or_uncertainty":["Minimum width specification stated as both 26 inches and 29 inches in different sources; Acorn's official U.S. site emphasizes 26 inches as the standard requirement, with UK sources citing 29 inches. The 26-inch figure appears to be the current U.S. specification.","Swivel radius specification given as 66.04 cm (26 inches) by Acorn, but it's unclear whether this applies to bottom or top landing; professional survey is recommended to confirm feasibility for specific staircase dimensions","Acorn 130 Superglide is mentioned in product recommendations but is described inconsistently—some sources refer to it as the older model (pre-T700), while others treat it as a current variant. The Acorn 130 T700 appears to be the current standard model.","Folded depth specification of 12.25 inches appears in older third-party sources (Allied Stairlifts) but is not confirmed in recent official Acorn documentation; confirm with direct survey","Battery life and replacement cycle costs mentioned (every few years) but specific duration and replacement costs are not disclosed in any source"],"final_verdict":"Acorn Stairlifts is a strong fit for the Compact & Narrow Stairways use case. The Acorn 130 Straight with optional folding rail directly addresses the buyer's core needs: minimum 26-inch width requirement supports most residential staircases under 30 inches; the folding rail explicitly eliminates foot traffic obstruction; slim 5.5-inch aluminum rail and compact folded profile (12.25 inches) minimize spatial impact; and direct stair-attachment installation requires no structural modifications in tight spaces. Pricing ($3,000-$4,500 installed for straight staircases) is competitive. However, the fit is narrowly specialized: the product is optimized only for straight staircases, and professional assessment is required for widths below 26 inches. Buyers with curved staircases, weights exceeding 280 pounds, or staircases measurably below 24 inches should seek alternatives or confirm feasibility through a formal Acorn survey. The strong rating reflects that for the defined use case—homeowners with straight, narrow (26-30 inch) staircases needing foot traffic preservation—Acorn 130 Straight is purpose-built and well-documented as a market leader.","fit_assessment":{"best_considered_for":["Straight staircases measuring 26-30 inches wide that need to remain accessible for other household members","Homes with narrow entryways or landings where stairlift obstruction creates practical problems","Buyers prioritizing minimal home modification and quick installation (typically under one day for straight stairs)","Homeowners seeking in-house manufacturing and direct installation rather than third-party dealers"],"direct_answer":"Acorn Stairlifts is a strong fit for homeowners with narrow staircases under 30 inches. The Acorn 130 Straight requires only 26 inches of width and features a folding rail option that eliminates obstruction at the foot of stairs, directly addressing the core need of maintaining foot traffic flow in compact spaces.","fit_rating":"strong","probably_not_best_for":["Curved staircases (Acorn 180 requires 27.5 inches minimum and is significantly more expensive)","Staircases under 26 inches where professional survey is still required to determine feasibility","Buyers seeking the lowest possible weight capacity (Acorn 130 standard is 265-280 lbs; competitors offer up to 700 lbs)","Users unable to transfer from a chair to the lift seat independently"]},"limitations_for_this_use_case":["Straight staircases only—curved staircases require different model with 27.5-inch minimum width requirement","Professional survey required for staircases narrower than 26 inches; no guarantee of fit","Standard weight capacity (265-280 lbs) may not accommodate heavier users without heavy-duty upgrade","Minimum capacity is 26 inches—staircases measurably under 24 inches may not be feasible","Folded depth of 12.25 inches still occupies moderate space in extremely narrow landings","No independent third-party review data on actual field performance in tight spaces","Requires user ability to transfer from chair to lift seat; not suitable for immobile users"],"platform_name":"anthropic","pricing_and_terms":{"additional_fees":["Optional folding rail for obstruction clearance (specific cost not disclosed; factors into custom quote)","Heavy-duty weight capacity upgrade to 440 lbs (cost not specified)","Accessories such as adjustable seat height and upholstery options (costs variable)","Extended warranty coverage available (cost not specified)"],"contract_or_cancellation_terms":["Free, no-obligation home survey and quote","12-month parts warranty standard (longer coverage available)","Battery replacement required every few years (maintenance cost unclear)","Ongoing support through Acorn Club app and 365-day helpline","No information found regarding cancellation, return, or refund policy"],"known_costs":["Acorn 130 Straight installed: $3,000-$4,500","Acorn 180 Curved installed: $8,000-$15,000","Installation included in quoted price (performed by certified technician)","Straight staircase installation: 2-4 hours same-day service typical"],"pricing_confidence":"moderate","pricing_summary":"Acorn 130 Straight stairlifts for straight staircases cost $3,000 to $4,500 installed in the United States. Pricing is customized based on individual staircase measurements, length of rail needed, and optional features such as folding rail or heavy-duty capacity."},"questions_to_verify_before_buying":["What is the exact minimum staircase width for your specific stairs? Request a professional home survey to confirm feasibility if your width is 26 inches or narrower.","Will the optional folding rail fit your specific landing configuration, and what is the additional cost for this feature?","What is your weight, and does the standard Acorn 130 capacity (265-280 lbs) accommodate you? If not, confirm the cost of the 440-lb heavy-duty upgrade.","How many steps do you have, and has Acorn confirmed the exact rail length and final price for your installation?","What are the specific landing clearance requirements at both the top and bottom of your stairs, and has a surveyor confirmed the stairlift will not create a trip hazard when folded?","Is your staircase straight, or does it have any curves, bends, or intermediate landings? (If not straight, the Acorn 130 is not suitable.)","What warranty coverage is included, and what is the cost of extended warranty options?","What is the cost of battery replacement, and how often will it be required?","Can you transfer from a chair to the stairlift seat independently, or do you need to confirm assisted transfer is feasible?","Does Acorn service your geographic area, and what are the response times for maintenance and support calls?"],"research_date":"2026-08-20","strengths_for_this_use_case":["Specifically engineered for narrow staircases: 26-inch minimum width meets the use case requirement and is among the narrowest in the industry","Folding rail option directly solves foot traffic obstruction problem at the foot of stairs","Compact folded profile (12.25 inches) maintains stairway accessibility when not in use","Slim 5.5-inch aluminum rail minimizes visual and spatial impact","Attaches to stairs, not walls—no structural modifications needed in compact spaces","Fast installation (typically under one day for straight stairs) minimizes disruption","In-house manufacturing and direct installation eliminates third-party dealer markups","Professional surveyor assessment for edge cases below 26 inches","Battery backup ensures operation during power outages","Swivel seat with safety sensors standard for secure entry/exit at top landing"],"topic":"Best Stairlifts for Narrow Staircases","use_case_findings":[{"assessment":"advantage","citation_ids":["C1","C2","C3"],"factor":"Minimum staircase width requirement","finding":"Acorn 130 Straight requires 26 inches of staircase width for comfortable swivel operation, with the actual rail measuring 5.5 inches wide. For staircases under 26 inches, Acorn's slimline rail design and professional surveyors can sometimes accommodate narrower spaces, but formal assessment is required."},{"assessment":"advantage","citation_ids":["C4","C5"],"factor":"Folded profile depth for foot traffic clearance","finding":"The Acorn 130 has an overall depth of 22.5 inches from wall when unfolded and 12.25 inches when folded, enabling storage that maintains stairway accessibility. The hinged rail option is a 15-inch lower track section that manually or electrically folds up to eliminate obstruction at the foot of stairs."},{"assessment":"advantage","citation_ids":["C1","C6"],"factor":"Slim rail design","finding":"The Acorn 130 track measures 5.5 inches wide and is constructed from aluminum with flat sides. Acorn explicitly states their slimline rail is engineered for tighter spaces and their surveyors regularly fit stairlifts on staircases assumed too narrow."},{"assessment":"advantage","citation_ids":["C4","C7"],"factor":"Folding footrest and armrest clearance","finding":"Acorn 130 features a folding footrest (width 12.25 inches) and folding armrests that allow the entire chair assembly to fold away when not in use, keeping the stairway clear. The folding design is standard on the T700 model variant."},{"assessment":"neutral","citation_ids":["C2","C8"],"factor":"Swivel radius (clearance at top landing)","finding":"Acorn 130 requires 66.04 centimeters (26 inches) of width to ensure users can swivel around comfortably at the top landing. No independent specification for bottom landing clearance was found in official sources, though industry standard is approximately 24 inches."},{"assessment":"advantage","citation_ids":["C9","C10"],"factor":"Installation impact on narrow spaces","finding":"Acorn stairlifts attach directly to stair treads, not walls, requiring no drilling or plastering. Straight staircase installations typically take 2 to 4 hours and are completed the same day, minimizing disruption in tight spaces."},{"assessment":"neutral","citation_ids":["C11","C12"],"factor":"Weight capacity","finding":"Standard Acorn 130 capacity is 265-280 pounds with optional heavy-duty upgrade to 440 pounds. Some competitors offer up to 700 pounds, which may be relevant if user weight exceeds the standard capacity."},{"assessment":"limitation","citation_ids":["C13","C14"],"factor":"Staircase type limitation","finding":"The Acorn 130 Straight is designed exclusively for straight staircases. Curved staircases require the Acorn 180 model, which needs 27.5 inches width and costs $8,000-$15,000 versus $3,000-$4,500 for the 130 Straight."}]},"platform":"anthropic","promptCommitmentSha256":"c36e987f94c04e122ec61696d9679169332b0eb06a5cdd88c59ad457441f3888","researchDateReported":"2026-08-20","responseCommitmentSha256":"5c9d7c44db6c8e53eea883279aac44c416197736f1e21db551a73369f415b857","stage":"fit_assessment","status":"valid"},{"completedAt":"2026-08-20 06:47:31.962118+00","evidence":{"better_alternative_when":["When stairway width is extremely narrow (e.g., under 24 inches) and custom dimensions are critical","When curved or multiple landing stairs require a curved stairlift","When buyer needs a fully concealed rail or ultra-slim profile that is rigorously measured"],"citations":[{"citation_id":"C1","claim_supported":"Acorn Stairlifts offers the Acorn 130 Straight, which fits narrow stairways as small as 25 inches wide, and features a slim rail design.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Straight Stairlifts","url":"https://www.acornstairlifts.com/straight-stairlifts"},{"citation_id":"C2","claim_supported":"Acorn Stairlifts listing on a consumer website describing folding features and suitability for narrow stairs.","source_domain":"thisoldhouse.com","source_ownership":"independent","source_type":"review","support_strength":"partial","title":"Acorn Stairlifts Review 2026","url":"https://www.thisoldhouse.com/home-services/acorn-stairlifts-review"}],"entity":{"canonical_name":"Acorn Stairlifts","entity_type":"company","official_website":"https://www.acornstairlifts.com/","relevant_product_or_plan":"Acorn 130 Straight stairlift"},"factual_conflicts_or_uncertainty":["Acorn claims fit for stairways as narrow as 25 inches, but this is not independently verified and may not apply to all configurations.","Official website does not list detailed technical specifications such as folded footprint, rail dimensions, or specific clearance values.","No third-party measurements or reviews with specific numbers for the Acorn 130 on very narrow stairs were found in this search."],"final_verdict":"Acorn Stairlifts is a good fit for typical narrow straight stairways under 30 inches, but due to missing specific dimensions and verification, it is not a strong fit until buyers confirm measurements and compatibility with their exact staircase. For exceptionally tight conditions, alternatives with more transparent specifications may be better.","fit_assessment":{"best_considered_for":["Narrow straight stairways where a slim rail and folding components are needed to minimize footprint","Homeowners wanting a reliable, widely available stairlift with local installation and service in the US","Straight staircases that do not require curved rails, as the Acorn 130 is specifically for straight runs"],"direct_answer":"Acorn Stairlifts is a good fit for narrow stairways under 30 inches, offering the Acorn 130 Straight with a slim rail and folding options that help reduce obstruction and fit tight spaces, though the minimum width requirement and specific dimensions should be verified.","fit_rating":"good","probably_not_best_for":["Curved or multi-landing staircases, as the Acorn 130 is only for straight stairs","Extremely narrow stairs under 25 inches without confirming specific model compatibility, as minimum width may vary","Buyers needing a fully custom fold-away rail that disappears completely, as Acorn's option may still have some protrusion"]},"limitations_for_this_use_case":["Acorn does not publish precise dimensions (e.g., folded depth, swivel radius), making it hard to assess fit for very narrow conditions","The Acorn 130 does not work for curved or landing stairs, limiting applicability","Minimum width claims may vary by model and configuration; independent verification is lacking","Folded stairlift may still protrude into hallway, potentially blocking foot traffic if not carefully measured"],"platform_name":"deepseek","pricing_and_terms":{"additional_fees":["Battery upkeep (replacement batteries, possibly a few years)","Optional powered swivel or extra features may increase cost","Annual servicing or repairs if not covered by warranty"],"contract_or_cancellation_terms":["Acorn provides warranty; typically includes on-site installation and service, but terms are not disclosed publicly."],"known_costs":["Typical stairlift installation may range from $2,500 to $5,000, but this is based on industry averages and not Acorn-specific.","Acorn often offers free assessments and installation with purchase, but terms vary."],"pricing_confidence":"low","pricing_summary":"Acorn does not list public pricing; quotes are provided after a home assessment. Costs vary based on stairs, options, and installation."},"questions_to_verify_before_buying":["What is the exact minimum staircase width required for the Acorn 130 with the chosen seat and rail options?","What is the folded depth and height of the footrest when the chair is parked?","What is the swivel radius and does it clear nearby walls or furniture?","Can the rail be mounted on the wall or floor to minimize obstruction?","What is the total cost including installation and any optional folding rail?","Is the warranty comprehensive and does it cover labor and parts?","Can I see a measured demonstration in a comparable narrow stairway before purchase?"],"research_date":"2026-04-08","strengths_for_this_use_case":["Slim rail design helps minimize rail footprint on narrow stairs","Folding footrest and armrests allow the lift to be tucked away when not in use, reducing obstruction","Acorn's widespread service network in the US ensures local installation and support","Acorn 130 is specifically designed for straight staircases, simplifying fit for common narrow straight stairs"],"topic":"Best Stairlifts for Narrow Staircases","use_case_findings":[{"assessment":"unclear","citation_ids":["C1"],"factor":"Minimum staircase width requirement","finding":"Acorn Stairlifts claims the Acorn 130 can fit stairways as narrow as 25 inches, but this is a company claim and independent verification is missing. The width requirement may depend on chair and rail configuration, and buyers should measure actual clear width between walls."},{"assessment":"neutral","citation_ids":["C1","C2"],"factor":"Folded profile depth","finding":"Acorn's stairlifts feature folding footrest, armrests, and a 'swivel seat' to reduce obstruction when parked. The folded depth is not publicly listed, but multiple sources note the 130 is designed to 'fold away' to maximize floor space."},{"assessment":"neutral","citation_ids":["C1"],"factor":"Slim rail design","finding":"Acorn uses a slim rail system, but the rail protrudes from the staircase. For narrow stairs under 30 inches, the rail can be mounted on the wall or floor, and the rail depth may affect foot traffic clearance, but specific dimensions are not provided."},{"assessment":"neutral","citation_ids":["C1","C2"],"factor":"Folding footrest and armrest clearance","finding":"Acorn's 130 has manual and powered folding options for footrest and armrests, but clearances when folded are not documented. Buyers need to verify that the folded width is acceptable for their hallway."},{"assessment":"unclear","citation_ids":["C1"],"factor":"Swivel radius","finding":"Acorn offers a swivel seat, but the radius is not published; the seat may be narrow. Buyers should test the swivel in their space to ensure it does not obstruct traffic at the top of the stairs."}]},"platform":"deepseek","promptCommitmentSha256":"bfddcb52d97f8fde61bd190e382e1c51a3e6b645c6159d0918e9f983cd44794f","researchDateReported":"2026-04-08","responseCommitmentSha256":"29e754a178565f93669af2ea68af62a7decfcfc2315c751cb625831409a9424f","stage":"fit_assessment","status":"valid"},{"completedAt":"2026-08-20 06:47:34.778491+00","evidence":{"better_alternative_when":["Curved narrow stairs or widths under 26 inches"],"citations":[{"citation_id":"C1","claim_supported":"Acorn 130 minimum staircase width 26 inches and folded depth","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"How wide do stairs need to be for a stairlift?","url":"https://www.acornstairlifts.com/faqs/how-wide-do-stairs-need-to-be-for-a-stairlift"},{"citation_id":"C2","claim_supported":"Acorn 130 folded depth 12.25 inches and overall dimensions","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn 130 Straight Stairlift","url":"https://www.acornstairlifts.com/stairlift/stairlift-straight-staircase"}],"entity":{"canonical_name":"Acorn Stairlifts","entity_type":"company","official_website":"https://www.acornstairlifts.com/","relevant_product_or_plan":"Acorn 130 Straight; Acorn 130 straight stairlift with optional folding rail where required; Acorn 130 Superglide (Straight)"},"factual_conflicts_or_uncertainty":["Third-party sources suggest higher minimums (e.g., 30+ inches) conflicting with official 26-inch claim"],"final_verdict":"Strong fit for the specified use case based on official minimum width specs under 30 inches.","fit_assessment":{"best_considered_for":["Straight staircases requiring minimum 26 inches width"],"direct_answer":"Strong fit for compact narrow stairways under 30 inches.","fit_rating":"strong","probably_not_best_for":["Staircases narrower than 26 inches or requiring curved models"]},"limitations_for_this_use_case":["Unclear if suitable below 26 inches without custom assessment","Pricing and exact installation details require in-person survey"],"platform_name":"grok","pricing_and_terms":{"additional_fees":[],"contract_or_cancellation_terms":[],"known_costs":[],"pricing_confidence":"low","pricing_summary":"Pricing not publicly listed on official site; quotes required."},"questions_to_verify_before_buying":["Exact minimum width for specific staircase","Availability of folding rail for narrowest setups","Current pricing and lead times"],"research_date":"2026-08-20","strengths_for_this_use_case":["26-inch minimum width suitable for under 30 inches","Folding options minimize obstruction","Straight model optimized for narrow straight runs"],"topic":"Best Stairlifts for Narrow Staircases","use_case_findings":[{"assessment":"advantage","citation_ids":["C1"],"factor":"Minimum staircase width requirement","finding":"Acorn 130 requires 26 inches of staircase width for comfortable swivel at top (26.25 inches specified in dimensions)."},{"assessment":"advantage","citation_ids":["C2"],"factor":"Folded profile depth","finding":"Overall depth when folded: 12.25 inches."},{"assessment":"advantage","citation_ids":["C1"],"factor":"Slim rail design and clearance","finding":"Overall width 23.25-23.75 inches; slim rail leaves room for foot traffic."}]},"platform":"grok","promptCommitmentSha256":"ff268635222d2dcd9961768ac9ecb74354b68f7ec397f6b293f3fd7cd84cd920","researchDateReported":"2026-08-20","responseCommitmentSha256":"272c69d2a8222ad8109e34e7bc602838deab531e922110c0392cfb6a8f34e28d","stage":"fit_assessment","status":"valid"},{"completedAt":"2026-08-20 06:47:57.248006+00","evidence":{"better_alternative_when":["The staircase is narrower than about 26 inches or has a very tight landing that cannot accommodate swivel clearance.[3][4]","The buyer wants a fully documented price before a sales call or a transparent online configurator with final installed cost.[5][7]","The staircase is curved or requires a custom rail; a straight model would not be appropriate.[1]"],"citations":[{"citation_id":"C1","claim_supported":"Acorn 130 Straight dimensions: overall depth when folded 12.25 inches and overall width 23.25 inches.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn 130 Straight Stairlift","url":"https://www.acornstairlifts.com/stairlift/stairlift-straight-staircase"},{"citation_id":"C2","claim_supported":"Manual notes seat, arms, and footrest fold up; seat swivels only at the top; 45-degree swivel for narrow landings and 90-degree for standard landings.","source_domain":"acornstairlifts.co.uk","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"User Manual","url":"https://acornstairlifts.co.uk/Acorn-Stairlifts-User-Manuals-130.pdf"},{"citation_id":"C3","claim_supported":"Secondary source states Acorn 130 requires a minimum staircase width of 26 inches / 26.25 inches for swivel clearance.","source_domain":"independentmobilityguide.com","source_ownership":"independent","source_type":"review","support_strength":"partial","title":"Acorn 130 T700 Straight Stairlift - Independent Mobility Guide","url":"https://independentmobilityguide.com/product-guidance/acorn-130-t700-straight-stairlift/"},{"citation_id":"C4","claim_supported":"Secondary sources show folded width around 12.25 inches and overall width around 23.25 inches; one source references a folding rail option in context.","source_domain":"unicornstairlifts.co.uk","source_ownership":"independent","source_type":"review","support_strength":"partial","title":"Acorn Stairlift Suppliers","url":"https://unicornstairlifts.co.uk/stairlifts/straight-stairlifts/acorn-stairlift/"},{"citation_id":"C5","claim_supported":"Independent review cites Acorn straight installed pricing around $3,000-$5,000 and standard 12-month warranty.","source_domain":"modernize.com","source_ownership":"independent","source_type":"review","support_strength":"partial","title":"Acorn Stairlift Review 2026: Cost, Models, Pros & Cons","url":"https://modernize.com/stair-lifts/best-brands/acorn"},{"citation_id":"C6","claim_supported":"Independent review cites starting price around $3,000-$4,000 with installation and lists folded depth / width dimensions.","source_domain":"ncoa.org","source_ownership":"independent","source_type":"review","support_strength":"partial","title":"Acorn Stair Lifts Review 2025","url":"https://www.ncoa.org/adviser/mobility/acorn-stair-lifts-review/"},{"citation_id":"C7","claim_supported":"Acorn's U.S. warranty page says new stairlifts include a 12-month manufacturer warranty and a scheduled service near the end of year one.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Stairlift Warranties & Guarantees","url":"https://www.acornstairlifts.com/stairlift/stairlift-extended-warranties"},{"citation_id":"C8","claim_supported":"Public warranty text indicates exclusions such as batteries and other wear/misuse-related items.","source_domain":"stairliftrescue.com","source_ownership":"independent","source_type":"other","support_strength":"partial","title":"Limited Warranty Acorn Stairlifts, Inc.","url":"https://www.stairliftrescue.com/wp-content/uploads/2014/05/New-Acorn-Warranty-10.31.15.pdf"}],"entity":{"canonical_name":"Acorn Stairlifts","entity_type":"company","official_website":"https://www.acornstairlifts.com/","relevant_product_or_plan":"Acorn 130 Straight stairlift (including optional folding rail where required); Acorn 130 Superglide (Straight)"},"factual_conflicts_or_uncertainty":["Public sources disagree somewhat on pricing, and none provide a definitive U.S. installed quote from Acorn itself.[5][6]","The exact minimum staircase width in the U.S. is not clearly published on the checked official page; the 26-inch figure comes from secondary/public spec sources.[3][4]","The optional folding rail is referenced in the ranking-stage product description, but a verified U.S. product page with its terms was not found.[4][5]"],"final_verdict":"Mixed fit: Acorn Stairlifts is a strong compact-profile candidate for some narrow straight stairways, but the verified clearance requirement and incomplete U.S. pricing/option detail make it only a conditional recommendation for staircases under 30 inches wide.","fit_assessment":{"best_considered_for":["Homeowners with narrow straight staircases that still meet Acorn's minimum clearance requirements and need a compact folded profile.[1][3]","Buyers who want a straight stairlift with a slim folded form and top-landing swivel access.[1][3]"],"direct_answer":"Acorn Stairlifts is a plausible but not guaranteed fit for narrow stairways under 30 inches: the Acorn 130 straight unit has a folded depth of 12.25 inches and overall width of 23.25 inches, but the published minimum staircase width verified here is 26 inches for swivel clearance, so some under-30-inch stairways may work while the tightest ones may not.[1][2][3]","fit_rating":"mixed","probably_not_best_for":["Homeowners with stairways under 26 inches wide or with very tight landings where swivel clearance is limited.[3][4]","Buyers who need a fully verified U.S. price quote or a transparent online price list before contacting sales; current public pricing is inconsistent across sources.[4][5][6]"]},"limitations_for_this_use_case":["Minimum clearance requirements are still significant for stairways under 30 inches; a 26-inch-plus swivel clearance threshold may exclude some homes.[3][4]","Exact U.S. availability and pricing for the optional folding rail remain unclear from public sources checked.[4][5]","Warranty excludes batteries and some other wear or misuse-related items, which affects ongoing ownership cost.[8]"],"platform_name":"perplexity","pricing_and_terms":{"additional_fees":["Optional upgrades such as a folding rail may add cost, but no verified U.S. price was found.[4]","Battery replacement, out-of-warranty service, and maintenance are likely ongoing costs; exact pricing is unclear from public sources.[8]"],"contract_or_cancellation_terms":["Publicly verified U.S. cancellation, deposit, or financing terms were not found; verify contract length, installation deposit, refund policy, and any restocking or cancellation fees before purchase.[7][8]"],"known_costs":["Installed straight stairlift pricing is reported by independent sources at about $3,000-$5,000.[5][6]","Acorn says new units include a 12-month manufacturer warranty and a service visit near the end of year one.[7]"],"pricing_confidence":"low","pricing_summary":"No official U.S. price list was verified. Independent coverage places installed straight-model pricing roughly in the $3,000-$5,000 range, but this should be treated as indicative only.[5][6]"},"questions_to_verify_before_buying":["What is the exact clear staircase width at the narrowest point and at the top landing, in inches?","Will the Acorn 130 fit with the seat, arms, and footrest folded without blocking passage?","Is a folding rail required, and if so, what is the added cost and lead time?","Does the quoted price include installation, tax, permits, and any electrical work?","What are the warranty exclusions, service charges after year one, and battery replacement costs?","Can the stairlift be mounted without violating any code, doorway, or egress requirements in the home?"],"research_date":"2026-08-20","strengths_for_this_use_case":["Very compact folded depth at 12.25 inches and overall width of 23.25 inches for a straight lift.[1]","Fold-up seat, arms, and footrest improve hallway clearance when not in use.[2]","Seat swivel options at the landing help with dismounting on narrower landings.[2]","Straight-model pricing is at least broadly in the entry-level installed range compared with many curved systems.[5][6]"],"topic":"Best Stairlifts for Narrow Staircases","use_case_findings":[{"assessment":"limitation","citation_ids":["C3","C4"],"factor":"Minimum staircase width","finding":"Independent and third-party sources indicate the Acorn 130 straight model needs about 26 inches (or 26.25 inches) of width at the top for swivel clearance, which means some stairways under 30 inches may fit but the narrowest ones may not.[3][4]"},{"assessment":"advantage","citation_ids":["C1"],"factor":"Folded profile depth and width","finding":"Acorn's U.S. product page lists the 130 straight stairlift at 12.25 inches overall depth when folded and 23.25 inches overall width, which is a strong compactness point for keeping passageway obstruction down.[1]"},{"assessment":"unclear","citation_ids":["C4","C5"],"factor":"Rail and access design","finding":"A public brochure for the Acorn 130 describes a folded width of 12.25 inches and references an optional hinged/folding rail in secondary coverage, but the exact U.S. option availability and terms are unclear from the sources checked.[4][5]"},{"assessment":"advantage","citation_ids":["C2"],"factor":"Footrest and armrest clearance","finding":"The Acorn 130 can fold the seat, arms, and footrest up when not in use, which helps preserve hallway access; however, the downside arm must be fully down for operation, so clearance tradeoffs still exist.[2]"},{"assessment":"advantage","citation_ids":["C2"],"factor":"Swivel radius / landing usability","finding":"The manual says the seat only swivels at the top landing and notes 45-degree swivel for a narrow landing and 90-degree swivel for a standard landing, which is relevant for tight stair tops.[2]"},{"assessment":"unclear","citation_ids":["C5","C6","C7"],"factor":"Pricing transparency","finding":"Public sources conflict on pricing: one independent source cites U.S. installed pricing around $3,000-$4,000, while another review cites $3,000-$5,000 installed; Acorn's public warranty page does not list prices.[5][6][7]"},{"assessment":"advantage","citation_ids":["C7","C8"],"factor":"Warranty and ongoing cost","finding":"Acorn states new stairlifts include a 12-month manufacturer warranty and a scheduled service toward the end of year one; independent warranty material also indicates batteries and some other items are excluded from warranty coverage.[7][8]"}]},"platform":"perplexity","promptCommitmentSha256":"e7bb907bef532f09b7bc28c4d1b3711f768ca2e2c825f249de1923bbfa979f04","researchDateReported":"2026-08-20","responseCommitmentSha256":"f61946c6bf1fcb864bb5191f3dc6630d7775ac2dc1724c98f0b05f8d64c06599","stage":"fit_assessment","status":"valid"},{"completedAt":"2026-08-20 06:49:24.455976+00","evidence":{"better_alternative_when":["Staircase under 28 inches: Stannah Sadler (26-28 inch minimum) or Flow X (24-inch/610mm minimum)","Standing ability present: Stannah Sadler or SLIM X","Curved staircase under 30 inches: Flow X (610mm) or Otolift Modul-Air Smart (70cm)","Maximum folded clearance priority: Harmar SL600 (10.5 inches folded)","Wheelchair user: Lehner Omega platform (950mm stairwell) or SLIM X"],"citations":[{"citation_id":"C1","claim_supported":"Acorn 130 Straight folded width approximately 11.25 inches; general product features","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"partial","title":"Acorn Stairlifts - Straight Stairlifts","url":"https://www.acornstairlifts.com/"},{"citation_id":"C2","claim_supported":"Stannah Siena dimensions: minimum staircase width 28-30 inches, folded depth 14.5 inches straight, 16 inches curved","source_domain":"stannah.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Compact Stairlift for Narrow Staircases | Siena Stairlift","url":"https://www.stannah.com/en-us/stairlifts/stannah-siena"},{"citation_id":"C3","claim_supported":"Harmar SL600 folded width 10.5 inches; narrowest in industry claim","source_domain":"harmar.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"SL600 Pinnacle Premium Stairlifts","url":"https://www.harmar.com/products/sl600/"},{"citation_id":"C4","claim_supported":"Savaria K2 folded depth 10.75 inches (L seat) or 11.25 inches (V seat)","source_domain":"savaria.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"K2 Straight Stairlift | Best-Selling for Seniors","url":"https://www.savaria.com/stairlifts/products/straight-k2"},{"citation_id":"C5","claim_supported":"Flow X minimum staircase width 610mm (24 inches); Advanced Swivel and Levelling technology","source_domain":"rightchoicemobility.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Access Flow X Stairlift | Narrow Staircase Stairlift","url":"https://www.rightchoicemobility.com/products/access-flow-x"},{"citation_id":"C6","claim_supported":"Otolift Modul-Air Smart: thinnest single rail, 70cm minimum staircase, Reverse Drive Technology","source_domain":"otoliftstairlifts.co.uk","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Otolift Modul-Air Smart – innovative and compact stairlift","url":"https://www.otoliftstairlifts.co.uk/modul-air-smart"},{"citation_id":"C7","claim_supported":"Stannah Sadler minimum staircase width 26-28 inches; standing support design","source_domain":"stannah.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Compact Standing Stair Lift for Narrow Stairs | The Sadler","url":"https://www.stannah.com/en-us/stairlifts/sadler-chair"},{"citation_id":"C8","claim_supported":"SLIM X minimum passage 820mm; standing or seated platform lift","source_domain":"extrema.it","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"SLIM X Commercial brochure","url":"https://api.extrema.it/uploads/SLIM_X_Commercial_brochure_f6b7215322.pdf"},{"citation_id":"C9","claim_supported":"Lehner Omega platform stairlift: narrowest stairwells from 950mm, prices from approximately €9,000","source_domain":"lehner-lifttechnik.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Omega | Lehner Lift Technology","url":"https://www.lehner-lifttechnik.com/en/lifts/platform-stairlifts/omega/"}],"entity":{"canonical_name":"Acorn Stairlifts","entity_type":"company","official_website":"https://www.acornstairlifts.com/","relevant_product_or_plan":"Acorn 130 Straight; Acorn 130 Superglide (Straight); Acorn 180 Curved"},"factual_conflicts_or_uncertainty":["Acorn's exact folded width varies: some sources suggest 11.25 inches, but official site lacks dimension table","Whether Acorn 130 can install on 27-inch staircases is unverified—no minimum width published","Whether Acorn's 'slim rail' matches competitors' published rail dimensions is unknown","Pricing is entirely quote-dependent; no public price benchmarks exist for direct comparison"],"final_verdict":"Acorn Stairlifts is a MIXED fit for Compact & Narrow Stairways under 30 inches. The Acorn 130 Straight likely fits many narrow staircases given competitive folded width (~11.25 inches), but the absence of published minimum width requirements, lack of narrow-stairway-specific engineering claims, and absence of standing/perching options make it less transparent and potentially less suitable than competitors for the tightest spaces. Competitors like Flow X (610mm minimum), Stannah Sadler (26-28 inches), and Harmar SL600 (10.5 inches folded) offer clearer narrow-stairway credentials. Buyers with staircases at or below 28 inches should verify fit during Acorn's free assessment but also solicit quotes from narrow-specialist competitors.","fit_assessment":{"best_considered_for":["Homeowners with standard-width straight staircases seeking proven reliability","Buyers prioritizing local showroom availability and same-day assessment","Users wanting vertically integrated manufacture-to-installation service"],"direct_answer":"Acorn Stairlifts is a moderate but not leading fit for narrow stairways under 30 inches. The Acorn 130 Straight has competitive folded width specifications comparable to industry leaders, but Acorn does not publicly disclose minimum staircase width requirements—unlike competitors that explicitly certify installations on staircases as narrow as 24-28 inches. The lack of transparent narrow-stairway-specific engineering claims and absence of published minimum width data creates uncertainty for this exact buyer need.","fit_rating":"mixed","probably_not_best_for":["Staircases under 29 inches where minimum width must be verified before purchase","Extremely narrow curved staircases under 30 inches","Buyers needing standing/perching options for very tight spaces"]},"limitations_for_this_use_case":["No published minimum staircase width—unlike multiple competitors","No standing/perching model for extreme narrowness","No patented narrow-stairway technology marketed (reverse drive, ASL swivel, etc.)","Unclear curved-stair minimum width","No published rail dimensions for comparison"],"platform_name":"kimi","pricing_and_terms":{"additional_fees":["Possible charges for folding rail option","Potential extra for powered swivel","Possible structural modification costs if staircase below undisclosed minimum"],"contract_or_cancellation_terms":["Unclear: no public cancellation or return policy found. Competitors offer rental options and varied warranty terms."],"known_costs":["Free no-obligation home assessment","Installation typically included in quoted price"],"pricing_confidence":"low","pricing_summary":"Acorn does not publish prices; requires in-home assessment. Industry range for straight stairlifts: $2,500-$5,500 installed; curved $8,500-$15,000+. Platform stairlifts start ~€9,000 (~$9,800). Acorn likely competitive with mid-market positioning."},"questions_to_verify_before_buying":["What is the exact minimum staircase width for safe Acorn 130 installation?","What is the folded depth from wall with all components folded?","What is the rail width and rail-to-wall dimension?","Can the installer provide references for similar narrow-stairway installations?","Is the folding rail option available, and what is its added cost and folded width?","What happens if staircase is too narrow upon assessment—are assessment fees refundable?","What warranty and service coverage exists, and is it transferrable?"],"research_date":"2026-08-20","strengths_for_this_use_case":["Competitive folded width (11.25 inches) when specifications are comparable","Established brand with direct sales/installation network","Free home assessment can verify fit for specific staircase"],"topic":"Best Stairlifts for Narrow Staircases","use_case_findings":[{"assessment":"neutral","citation_ids":["C1","C3","C4"],"factor":"Folded profile depth (narrow-stairway clearance)","finding":"Acorn 130 Straight folds to approximately 11.25 inches from wall with seat and footrest folded, comparable to Savaria K2 (10.75-11.25 inches) and slightly wider than Harmar SL600 Pinnacle (10.5 inches). This is competitive but not class-leading."},{"assessment":"limitation","citation_ids":["C2","C5","C6","C7"],"factor":"Minimum staircase width requirement","finding":"Acorn does not publicly disclose minimum staircase width requirements on its website. Competitors explicitly publish: Stannah Siena (28-30 inches), Stannah Sadler standing lift (26-28 inches), Otolift Modul-Air Smart (70cm/27.5 inches), Flow X (610mm/24 inches), Harmar SL600 (~27-29 inches inferred from 10.5-inch folded width plus user clearance)."},{"assessment":"neutral","citation_ids":["C1","C6"],"factor":"Slim rail design","finding":"Acorn uses a sleek rail profile but does not publish rail dimensions or claim thinnest-rail technology. Otolift advertises 'thinnest single rail in the world' with specific narrow-stairway engineering. Acorn's rail is described as slim without supporting measurements."},{"assessment":"unclear","citation_ids":["C1","C3","C4"],"factor":"Folding footrest and armrest clearance","finding":"Acorn 130 features foldaway seat, footrest, and armrests. Specific folded dimensions are not independently verified in search results; company claims slim folded profile. Harmar SL600 and Savaria K2 publish exact folded measurements."},{"assessment":"limitation","citation_ids":["C1","C5","C6"],"factor":"Swivel radius and knee clearance","finding":"Acorn offers powered swivel option at top landing. No published data on swivel radius or reverse-drive knee-clearance technology. Competitors like Otolift Modul-Air Smart and Flow X feature patented technologies specifically addressing knee-to-wall clearance on narrow stairs."},{"assessment":"limitation","citation_ids":["C1","C2","C5","C6"],"factor":"Curved/narrow stair capability","finding":"Acorn 180 Curved available but no minimum width published. Flow X and Otolift explicitly market narrow curved-stair capability (610mm and 70cm respectively). Stannah Siena curved version requires 16-inch folded depth versus 14.5-inch straight."},{"assessment":"limitation","citation_ids":["C2","C7","C8","C9"],"factor":"Standing/perching option for extreme narrowness","finding":"Acorn does not offer a standing or perching stairlift model. Stannah Sadler (standing support, 26-28 inch minimum) and SLIM X platform (820mm minimum) provide alternatives for users who can partially stand. Lehner Omega platform accepts wheelchairs on 950mm stairwells."}]},"platform":"kimi","promptCommitmentSha256":"c27f8cd99eb2d40423742946f9318a08bf41502e802b1f6ffe2a42e0442042ee","researchDateReported":"2026-08-20","responseCommitmentSha256":"7f86598260b1cf6b3aa8399fe8286e298882c978ec4ff8c5bbfb562e0403dbe1","stage":"fit_assessment","status":"valid"},{"completedAt":"2026-08-20 06:48:04.490454+00","evidence":{"better_alternative_when":["The staircase width is less than 26 inches, where specialized narrow models like the Flow X (which supports widths down to 24 inches) are required","The user weighs over 300 lbs and requires a heavier-duty bariatric lift with narrow clearances","The buyer wants lifetime warranty coverage on key components like the motor and gear board"],"citations":[{"citation_id":"1.1.1","claim_supported":"Acorn 130 Straight technical measurements, including folded depth of 12.25 inches and standard dimensions.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn 130 Straight Stairlift","url":"https://www.acornstairlifts.com/stairlifts/straight-stairlift"},{"citation_id":"1.1.2","claim_supported":"Stairlift hinged rail option to remove any obstacle or trip hazard at the foot of the stairs.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Straight Stairlift | Acorn 130","url":"https://www.acornstairlifts.com/stairlifts/straight-stairlift"},{"citation_id":"1.1.4","claim_supported":"Technical details showing overall folded width of 12.25 inches and minimum width of 26.25 inches required to swivel at the top.","source_domain":"cumbriamobility.co.uk","source_ownership":"independent","source_type":"directory","support_strength":"direct","title":"The Acorn 130 Stairlift - The Mobility People","url":"https://www.cumbriamobility.co.uk/stairlifts/straight/acorn-130"},{"citation_id":"2.1.2","claim_supported":"Acorn 130 Straight Stairlift minimum staircase width specification of 26 inches and details on standard manual hinge.","source_domain":"acornstairlifts.ca","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"Acorn Stairlifts Product Brochure","url":"https://www.acornstairlifts.ca/stairlift-frequently-asked-questions"},{"citation_id":"2.2.5","claim_supported":"Acorn 130 T700 model dimensions including 310mm folded width and 670mm swivel requirement.","source_domain":"stairlift-pricing.co.uk","source_ownership":"independent","source_type":"review","support_strength":"direct","title":"Acorn 130 T700 Straight Stairlift - Independent Mobility Guide","url":"https://stairlift-pricing.co.uk/stairlifts/acorn/130-t700/"},{"citation_id":"2.3.1","claim_supported":"Acorn 130 requires about 26 inches of staircase width and details on how narrow staircases require expert clearance evaluation.","source_domain":"acornstairlifts.com","source_ownership":"owned","source_type":"company","support_strength":"direct","title":"How to Measure Stairs for a Straight vs Curved Stairlift","url":"https://www.acornstairlifts.com/blog/how-to-measure-stairs-for-a-straight-vs-curved-stairlift"},{"citation_id":"2.3.2","claim_supported":"Comparison of minimum widths among slimline models including Acorn 130 Slimline at ~660mm (26 inches).","source_domain":"multicare-mobility.co.uk","source_ownership":"independent","source_type":"review","support_strength":"direct","title":"Stairlifts for Narrow Stairs: Practical Options, Minimum Widths & Costs","url":"https://www.multicare-mobility.co.uk/guides/stairlifts-for-narrow-stairs-practical-options-minimum-widths-costs/"},{"citation_id":"3.1.1","claim_supported":"Acorn average straight stairlift costs between $3,000 and $15,000 general range, plus 12-month standard warranty limitations.","source_domain":"modernize.com","source_ownership":"independent","source_type":"review","support_strength":"direct","title":"Acorn Stairlift Review 2026: Cost, Models, Pros & Cons - Modernize","url":"https://modernize.com/stairlifts/best-stairlift-brands/acorn-stairlifts-review"},{"citation_id":"3.1.7","claim_supported":"US Headquartered in Florida, straight stairlifts range between $2,500 and $5,500 on average.","source_domain":"retirementliving.com","source_ownership":"independent","source_type":"review","support_strength":"direct","title":"Acorn Stair Lifts Review (2026): With Costs","url":"https://www.retirementliving.com/reviews/acorn-stair-lifts"}],"entity":{"canonical_name":"Acorn Stairlifts","entity_type":"company","official_website":"https://www.acornstairlifts.com/","relevant_product_or_plan":"Acorn 130 Straight Stairlift"},"factual_conflicts_or_uncertainty":["Standard weight capacity limits for the Acorn 130 are listed inconsistently as 280 lbs, 300 lbs, or 350 lbs across regional marketing brochures, though 280 lbs/300 lbs is most standard."],"final_verdict":"The Acorn 130 Straight is a reliable and highly compact option for narrow straight stairways down to 26 inches in width. Its ultra-slim 12.25-inch folded profile is outstanding for keeping walkways clear, though buyers must verify top swivel clearances and prepare for a short 1-year warranty period.","fit_assessment":{"best_considered_for":["Straight staircases with a width of 26 to 30 inches","Multipurpose stairways where other family members need foot traffic clearance (folded width of 12.25 inches)","Bottom-of-stairs obstructions, thanks to the manual folding hinged rail option"],"direct_answer":"The Acorn 130 Straight Stairlift is a highly suitable choice for compact and narrow stairways, requiring a minimum staircase width of only 26 inches (660 mm) and featuring a folded depth of 12.25 inches (310 mm). However, while it is excellent for narrow spaces, users must ensure they have at least 26.25 inches (670 mm) of clearance at the top landing to accommodate the manual swivel seat safety mechanism.","fit_rating":"good","probably_not_best_for":["Staircases narrower than 26 inches, which require highly specialized standing or curved models","Buyers seeking robust standard warranties, as the included manufacturer warranty is limited to 12 months"]},"limitations_for_this_use_case":["Top swivel action requires 26.25 inches of clearance, meaning users with extremely tight landings might struggle to rotate safely","Standard weight capacity is limited to 280 lbs (300 lbs in some markets), requiring a heavier-duty upgrade for higher capacities","Standard manufacturer warranty is only 12 months, which is shorter than some industry competitors"],"platform_name":"google","pricing_and_terms":{"additional_fees":["Fees for optional manual hinged rail","Ongoing maintenance and service plans after the first year"],"contract_or_cancellation_terms":["Comes with a 12-month manufacturer warranty covering parts and labor","In-home assessment and quote are free with no obligation to buy"],"known_costs":["Straight stairlift cost: $2,500 to $5,500 on average (including professional installation)","Promotional or reconditioned baseline starting price: ~$1,999"],"pricing_confidence":"moderate","pricing_summary":"Acorn does not publish standard retail prices on its main site because each lift is customized to the staircase. However, general industry data indicates straight models typically range between $2,500 and $5,500 installed, though basic reconditioned models or specific distributor deals can start around $1,999. Extended warranties and service contracts must be purchased separately after the initial coverage period."},"questions_to_verify_before_buying":["Is my staircase top landing wide enough (at least 26.25 inches) to allow the seat to swivel fully and safely?","Does the quoted price include the optional folding hinged rail, and what is the extra cost if not?","What are the ongoing costs and terms of the service maintenance contract after the 12-month standard warranty expires?"],"research_date":"2026-08-20","strengths_for_this_use_case":["One of the slimmest folded profiles on the market at only 12.25 inches","Secures directly to the stair treads rather than the wall, leaving walls undamaged","Awarded the Ease of Use Commendation from the Arthritis Foundation for accessible controls"],"topic":"Best Stairlifts for Narrow Staircases","use_case_findings":[{"assessment":"advantage","citation_ids":["2.1.2","2.3.1","2.3.2"],"factor":"Minimum Staircase Width","finding":"The Acorn 130 Straight Stairlift requires a minimum staircase width of 26 inches (660 mm) for standard straight installation, making it highly effective for narrow stairs under 30 inches."},{"assessment":"advantage","citation_ids":["1.1.1","1.1.4","2.2.5"],"factor":"Folded Profile Depth","finding":"When not in use, the armrests, seat, and footrest fold up to a highly compact folded depth of 12.25 inches (310 mm) from the wall, minimizing obstruction for other stairway users."},{"assessment":"limitation","citation_ids":["1.1.4","2.2.5","2.3.1"],"factor":"Swivel Radius Clearance","finding":"The Acorn 130 requires a minimum width of 26.25 inches (670 mm) at the top landing to safely operate the swivel seat function, which allows users to get off safely."},{"assessment":"advantage","citation_ids":["1.1.2","2.1.2","2.3.1"],"factor":"Bottom Landing Clearances","finding":"An optional manual folding hinged rail is available to fold the bottom track segment away, preventing trip hazards in narrow hallways or doorways near the foot of the stairs."}]},"platform":"google","promptCommitmentSha256":"7f755fff7badcb955847bd603aee777ac8d2c8472c74e5f63fff964f5b1b2824","researchDateReported":"2026-08-20","responseCommitmentSha256":"428398e402ac9a21b53b803c6f6f454f12aca31441b508727eddeb4a108ecd21","stage":"fit_assessment","status":"valid"}],"platforms":[{"name":"openai","order":1},{"name":"anthropic","order":2},{"name":"deepseek","order":3},{"name":"grok","order":4},{"name":"perplexity","order":5},{"name":"kimi","order":6},{"name":"google","order":7}],"rankingResponses":[{"completedAt":"2026-08-12 05:27:04.173199+00","evidence":{"methodology_note":"One response to one standardized ranking prompt.","platform_name":"Independent AI Consensus Index","recommendations":[{"canonical_name":"Savaria K2","citations":[{"source_domain":"savaria.com","source_type":"company","title":"K2 Straight Stairlift","url":"https://www.savaria.com/stairlifts/products/straight-k2?lang=en"},{"source_domain":"savaria.com","source_type":"company","title":"Savaria K2 Stairlift Brochure","url":"https://files.savaria.com/wp-content/uploads/2026/01/K2%20Straight%20Stairlift%20Brochure.pdf"},{"source_domain":"savaria.com","source_type":"company","title":"K2 Stairlift Owner's Manual","url":"https://files.savaria.com/wp-content/uploads/2026/01/K2%20Straight%20Stairlift%20Owner%27s%20Manual.pdf"}],"confidence":"high","important_limitations":["Designed for straight-run stairs; it is not the choice for turns or intermediate landings","The manufacturer does not publish a single minimum staircase width for every installation; dealer measurement is required","Power features and folding rail increase cost","The standard warranty is 36 months, shorter than some competing dealer-backed warranties"],"official_website":"https://www.savaria.com/stairlifts/products/straight-k2?lang=en","pricing_summary":"Quote-only in the United States. Public pricing was not identified; price varies by stair length, installation, seat, rail, and power options.","rank":1,"recommended_product_or_plan":"Savaria K2 straight stairlift with L seat; add manual or powered folding rail if the lower landing is a traffic path","strongest_use_case_features":["10.75-inch folded depth with the L seat","Seat, armrests, and footrest fold upward","Width-adjustable armrests and two seat styles","Optional power seat swivel and power folding footrest","Optional folding rail can reduce obstruction at a doorway or busy lower landing","350-pound capacity on standard configurations up to 45 degrees; 300 pounds with certain rail options or steeper stairs"],"why_it_fits":"The strongest documented fit for a very narrow, straight U.S. staircase because its standard L-seat configuration folds to approximately 10.75 inches from the wall. Savaria lists U.S. dealer availability and the model is specifically positioned for narrow stairs."},{"canonical_name":"Stannah Sadler","citations":[{"source_domain":"stannah.com","source_type":"company","title":"The Sadler Compact Standing Stair Lift","url":"https://www.stannah.com/en-us/stairlifts/sadler-chair"},{"source_domain":"stannah.com","source_type":"company","title":"Stairlift Dimensions","url":"https://www.stannah.com/en-us/resources/stairlift-dimensions"}],"confidence":"high","important_limitations":["Standing/semi-standing operation is not appropriate for every user, especially people needing substantial trunk, balance, or transfer support","Published dimensions do not establish that every sub-28-inch staircase will pass a U.S. site survey","The product page does not provide a public purchase price","Footrest, armrest, and swivel-clearance measurements for every configuration are not fully disclosed"],"official_website":"https://www.stannah.com/en-us/stairlifts/sadler-chair","pricing_summary":"Quote-only; Stannah provides a U.S. home assessment rather than public list pricing. Curved installations are expected to cost more than straight installations.","rank":2,"recommended_product_or_plan":"Stannah Sadler standing/semi-standing stairlift","strongest_use_case_features":["Published minimum staircase width of 26 to 28 inches","18.5-inch width inside the armrests","16-inch folded depth from the wall","Compact standing/semi-standing posture can improve knee and foot clearance","Seat and arms fold when parked","Suitable for indoor curved and very narrow staircases"],"why_it_fits":"Among the clearest published fits for stairs under 30 inches. Stannah lists a 26- to 28-inch minimum staircase width and an 18.5-inch inside-armrest width, making it particularly relevant where a conventional seated chair is too bulky."},{"canonical_name":"Stannah Siena 600","citations":[{"source_domain":"stannah.com","source_type":"company","title":"Stannah Siena Stairlift","url":"https://www.stannah.com/en-us/stairlifts/stannah-siena"},{"source_domain":"stannah.com","source_type":"company","title":"Stairlift Dimensions","url":"https://www.stannah.com/en-us/resources/stairlift-dimensions"}],"confidence":"high","important_limitations":["It is not a reliable match for stairs materially narrower than 28 inches","The 20.5-inch chair width plus rail and installation clearances can leave limited walking space","The published page does not specify a single swivel radius","Pricing is not public"],"official_website":"https://www.stannah.com/en-us/stairlifts/stannah-siena","pricing_summary":"Quote-only through Stannah U.S. assessment. Final cost depends on straight versus curved rail, stair length, installation, and selected options.","rank":3,"recommended_product_or_plan":"Stannah Siena 600 straight stairlift","strongest_use_case_features":["Published minimum staircase width of 28 to 30 inches","14.5-inch folded depth from the wall on straight stairs","20.5-inch inside-armrest width","Foldable seat and armrests","Swivel-seat design intended to assist top-landing transfers","Available for straight and curved layouts"],"why_it_fits":"A strong conventional seated option when the staircase is approximately 28 to 30 inches wide. Its 14.5-inch folded depth is better than many standard chairs, while the straight configuration minimizes rail complexity."},{"canonical_name":"Acorn 130","citations":[{"source_domain":"acornstairlifts.com","source_type":"company","title":"How Wide Do Stairs Need to Be For a Stairlift?","url":"https://www.acornstairlifts.com/faqs/how-wide-do-stairs-need-to-be-for-a-stairlift"},{"source_domain":"acornstairlifts.com","source_type":"company","title":"Acorn Stairlift FAQ","url":"https://acornstairlifts.com/about/acorn-stairlifts-faq"}],"confidence":"moderate","important_limitations":["Acorn's 26-inch figure is a general fit guideline, not a guarantee for every staircase geometry","The manufacturer does not clearly publish a model-specific folded profile depth in the cited U.S. material","The 130 is less suitable than compact standing or ultra-slim designs where walking clearance is the overriding concern","Public pricing is not provided"],"official_website":"https://www.acornstairlifts.com/","pricing_summary":"Quote-only after a home survey. Acorn states that price depends on staircase configuration and personal requirements.","rank":4,"recommended_product_or_plan":"Acorn 130 straight stairlift with optional folding rail where required","strongest_use_case_features":["Published 26-inch minimum staircase requirement","Straight-stair configuration","Seat, arms, and footrest fold when not in use","Optional folding rail can help preserve lower-landing foot traffic","Acorn offers U.S. home surveys and installation"],"why_it_fits":"Acorn explicitly states that the 130 needs approximately 26 inches of staircase width for the user to swivel comfortably, placing it among the few mainstream U.S.-available models with a published sub-28-inch fit claim."},{"canonical_name":"Bruno Elan","citations":[{"source_domain":"bruno.com","source_type":"company","title":"Bruno Stair Lifts","url":"https://www.bruno.com/stair-lifts"},{"source_domain":"bruno.com","source_type":"company","title":"Stair Lift Basics","url":"https://www.bruno.com/stair-lifts/basics"},{"source_domain":"lifewaymobility.com","source_type":"directory","title":"Compare Best Stair Lifts of 2026","url":"https://www.lifewaymobility.com/utah/resources/product-guides/stair-lift-comparison-chart/"}],"confidence":"moderate","important_limitations":["Bruno does not publish a definitive minimum staircase width for the Elan on the cited product pages","A Lifeway comparison lists a 12-inch folded width and 5-inch rail-to-wall distance, but exact installed clearance varies by configuration","The 20.25-inch armrest spacing may be restrictive for some users","Public pricing is not provided"],"official_website":"https://www.bruno.com/stair-lifts","pricing_summary":"Dealer quote required. Bruno states that cost varies with configuration, options, and installation; a folding rail and power footrest add cost.","rank":5,"recommended_product_or_plan":"Bruno Elan straight indoor stair lift with power folding footrest and, where needed, folding rail","strongest_use_case_features":["Narrow vertical rail designed to leave more open space on the steps","Manual folding seat, arms, and footrest","Optional power folding footrest","Optional folding rail for lower-landing hallways or doorways","300-pound capacity","Made in the United States and sold through local dealers"],"why_it_fits":"A good U.S.-supported option when a narrow vertical rail and local installation network matter more than a published ultra-low minimum width. Bruno says the Elan uses a narrow vertical rail positioned close to the wall to preserve open stair space."},{"canonical_name":"Handicare 1100","citations":[{"source_domain":"savaria.com","source_type":"company","title":"Compare Savaria Straight and Curved Stairlifts","url":"https://www.savaria.com/stairlifts/compare"},{"source_domain":"lifewaymobility.com","source_type":"directory","title":"Compare Best Stair Lifts of 2026","url":"https://www.lifewaymobility.com/utah/resources/product-guides/stair-lift-comparison-chart/"},{"source_domain":"savaria.com","source_type":"company","title":"Straight Stairlift Technical Drawings","url":"https://www.savaria.com/drawings/stairlifts?lang=en"}],"confidence":"moderate","important_limitations":["The cited sources do not establish a reliable minimum staircase width under 30 inches","The 1100's 310-pound standard capacity is lower than the Savaria K2's maximum standard capacity","Exact armrest, footrest, and swivel-clearance dimensions are configuration-dependent","Pricing is quote-only"],"official_website":"https://www.savaria.com/stairlifts/compare","pricing_summary":"Quote-only through a local Savaria dealer. Public pricing was not identified.","rank":6,"recommended_product_or_plan":"Handicare 1100 straight stairlift supplied through Savaria-authorized U.S. dealers","strongest_use_case_features":["12.75-inch published folded depth","Power seat swivel and folding footrest options","Friction-drive system with no exposed gear rack","Designed for straight stairways","Available through the Savaria dealer network in the United States"],"why_it_fits":"A reasonable narrow-stair alternative for buyers who value a compact folded profile and powered options. Savaria's comparison lists a 12.75-inch folded depth, while U.S. dealer comparison data identifies power swivel and folding-footrest options."},{"canonical_name":"Handicare Freecurve","citations":[{"source_domain":"savaria.com","source_type":"company","title":"Handicare Freecurve Curved Stairlift","url":"https://www.savaria.com/stairlifts/products/handicare-freecurve-stairlift"},{"source_domain":"savaria.com","source_type":"company","title":"Compare Savaria Straight and Curved Stairlifts","url":"https://www.savaria.com/stairlifts/compare"}],"confidence":"moderate","important_limitations":["No dependable universal minimum staircase width or folded depth is published for all configurations","Custom curved installations are substantially more expensive than straight lifts","The standard capacity is listed at 275 pounds","The fit depends heavily on landings, curvature, parking position, and transfer space"],"official_website":"https://www.savaria.com/stairlifts/products/handicare-freecurve-stairlift","pricing_summary":"Custom quote only. Savaria states that the rail is measured and fabricated for the individual staircase; public pricing was not identified.","rank":7,"recommended_product_or_plan":"Handicare Freecurve custom curved stairlift with optional two-way power swivel","strongest_use_case_features":["Custom-fabricated rail for curved, turning, or spiral-style stairs","Single-tube rail design","Optional two-way powered pivot swivel for narrow stairs and tight spirals","Seat, arms, and footrest fold when parked","Optional active seat for easier transfers"],"why_it_fits":"The best curved-stair option in this group when tight turns or a spiral-like layout make a straight lift impossible. Its single-tube rail follows the stair shape, and the optional two-way power swivel is specifically intended to save space on narrow or tight staircases."}],"research_date":"2026-08-12","topic":"Best Stairlifts for Narrow Staircases"},"platform":"openai","promptCommitmentSha256":"365769c5ea1d2be1b6772b2380f9cd4fbc792cf9d54fb2409847629713cae2f6","researchDateReported":"2026-08-12","responseCommitmentSha256":"cc7bae7c0299b4973d029747d297bb68d7a39f93b62c5df53a16e971f8776b4f","stage":"ranking_discovery","status":"valid"},{"completedAt":"2026-08-12 05:27:31.132461+00","evidence":{"methodology_note":"One response to one standardized ranking prompt.","platform_name":"AI Consensus Index","recommendations":[{"canonical_name":"Otolift Modul-Air Smart","citations":[{"source_domain":"corporate.otolift.com","source_type":"company","title":"Otolift Modul-Air Smart - the most advanced stairlift from Otolift","url":"https://corporate.otolift.com/modul-air-smart"},{"source_domain":"us.otolift.com","source_type":"company","title":"Otolift USA - Reliable stairlift solutions","url":"https://us.otolift.com/"},{"source_domain":"harmar.com","source_type":"company","title":"Otolift Modul-Air Smart Curved Stairlift – Harmar","url":"https://www.harmar.com/products/otolift-modul-air-smart-curved-stairlift/"}],"confidence":"high","important_limitations":["Higher premium pricing due to specialized narrow-stair engineering","Requires professional measurement and installation via Harmar dealers","Weight capacity of 275 lbs is lower than standard models","Limited aesthetic customization compared to mainstream models"],"official_website":"https://corporate.otolift.com/modul-air-smart","pricing_summary":"Premium pricing not disclosed in search results; requires dealer quote. Positioned as high-end solution for extremely narrow staircases.","rank":1,"recommended_product_or_plan":"Otolift Modul-Air Smart (Straight or Curved)","strongest_use_case_features":["World's thinnest single rail at 60 mm diameter enables installation on staircases as narrow as 60 cm (23.6 inches)","Reverse Drive Technology allows backwards seat rotation to navigate tight spaces under 30 inches","Modular rail system with quick delivery and no factory customization delays","Foldable armrest and footrest for additional space when parked","Compatible with straight, curved, spiral, and helical stairs","5-year full warranty standard with 24/7 service team"],"why_it_fits":"Specifically engineered for extreme narrow staircases, fitting widths from 60 cm (23.6 inches) using the world's thinnest rail. Reverse Drive Technology allows the chair to travel backwards on tight curves, minimizing knee clearance needs. Custom-built modular design reduces delivery times compared to traditional curved lifts. Available through Harmar in the US."},{"canonical_name":"Handicare 1100","citations":[{"source_domain":"handicare-stairlifts.com","source_type":"company","title":"Handicare 1100 stairlift | Handicare Stairlifts International","url":"https://handicare-stairlifts.com/stairlifts/straight-stairlifts/1100/"},{"source_domain":"savaria.com","source_type":"company","title":"Handicare 1100 Straight Stairlift | Advanced Mobility - Savaria","url":"https://www.savaria.com/stairlifts/products/straight-handicare-1100"},{"source_domain":"retirementliving.com","source_type":"review","title":"Best Stair Lifts for Narrow Staircases of 2026 (with Reviews & Cost)","url":"https://www.retirementliving.com/stair-lifts/stairlifts-for-narrow-staircases"}],"confidence":"high","important_limitations":["Designed for straight staircases only; not suitable for curved stairs","Minimum staircase width not explicitly specified, but industry standard is 26-28 inches","Requires professional installation; not DIY-installable","Premium pricing due to advanced friction drive technology"],"official_website":"https://handicare-stairlifts.com/stairlifts/straight-stairlifts/1100/","pricing_summary":"Pricing varies by dealer; available through 101 Mobility, Savaria distributors, and independent installers. Typical premium positioning with optional powered features (swivel, footrest) adding $650 each.","rank":2,"recommended_product_or_plan":"Handicare 1100 Straight Stairlift","strongest_use_case_features":["Narrowest straight stairlift rail design on market reduces obstruction","Folded profile depth of 12.6 inches keeps stairs accessible when parked","Patented friction drive eliminates gear rack for fully enclosed, clean design","Slim track projects only 6.3 inches into staircase width","Swivel seat at top landing with fold-up arms and footrest","Weight capacity 280-309 lbs depending on stair angle","Lifetime warranty on motor/gearbox; 24-month parts warranty"],"why_it_fits":"Marketed as the slimmest straight stairlift rail on the market with ultra-compact folded depth of 12.6 inches. Patented four-motor friction drive eliminates gear rack, allowing slim line rail design. Folds completely for maximum staircase accessibility. Widely available across US through multiple distributors."},{"canonical_name":"Savaria K2","citations":[{"source_domain":"savaria.com","source_type":"company","title":"K2 Straight Stairlift | Best-Selling for Seniors - Savaria","url":"https://www.savaria.com/stairlifts/products/straight-k2"},{"source_domain":"koltaccess.com","source_type":"company","title":"Savaria K2 Stairlift - Kolt Access & Lift","url":"https://koltaccess.com/files/2019/11/K2_2-page_brochure_web(1).pdf"}],"confidence":"high","important_limitations":["Straight staircases only; not suitable for curved stairs","Minimum staircase width specifications not explicitly provided but aligned with 28-30 inch standard","Lower weight capacity and durability claims compared to premium curved stairlift options","Not available in Quebec per manufacturer"],"official_website":"https://www.savaria.com/stairlifts/products/straight-k2","pricing_summary":"Competitively positioned in mid-range; exact pricing not disclosed in search results. Known for value pricing relative to compact profile and features.","rank":3,"recommended_product_or_plan":"Savaria K2 Straight Stairlift","strongest_use_case_features":["Industry-leading folded depth of 10.75 inches - smallest profile on market","Slim rail design sits close to wall, maximizing staircase width availability","Battery-powered with continuous charging strips at both ends of track","Operates during power outages with built-in battery","Weight capacity 350 lbs","Swivel seat at top landing for safe exit/entry","LED status lights and obstacle sensors","Quick installation in just a few hours"],"why_it_fits":"Ultra-slim folded profile of 10.75 inches is among the smallest on market, designed specifically for narrow staircases. Slim rail design hugs the staircase. Battery-powered with built-in charging at top and bottom eliminates wall outlets. Fast installation and competitively priced for compact feature set."},{"canonical_name":"Bruno Elan","citations":[{"source_domain":"ofzenandcomputing.com","source_type":"review","title":"10 Best Stair Lifts for Narrow Staircases (June 2026) Top Picks","url":"https://www.ofzenandcomputing.com/best-stair-lifts-for-narrow-staircases/"},{"source_domain":"retirementliving.com","source_type":"review","title":"Best Stair Lifts for Narrow Staircases of 2026 (with Reviews & Cost)","url":"https://www.retirementliving.com/stair-lifts/stairlifts-for-narrow-staircases"},{"source_domain":"homelift.com","source_type":"company","title":"Best Stairlift for Small Spaces | Blog | HomeLift Mobility Solutions","url":"https://www.homelift.com/best-stairlifts-for-small-spaces/"}],"confidence":"high","important_limitations":["Designed for straight staircases only","Requires 28-30 inches minimum width; not suitable for staircases under 28 inches","DIY installation may void warranty or result in safety issues without professional measurement","No power-folding options on base model; premium features add cost"],"official_website":"https://www.bruno.com/","pricing_summary":"Mid-range pricing; widely available and competitively priced. Typically lower cost than specialized narrow models like Handicare 1100 or Otolift.","rank":4,"recommended_product_or_plan":"Bruno Elan Straight Stairlift","strongest_use_case_features":["Folded dimensions of 12 inches fit almost any narrow staircase","23-inch open projection minimizes obstruction while in use","Low-profile rail design leaves space on stairs","350 lb weight capacity suitable for most users","DIY-installable option for cost-conscious homeowners","Manual folding seat, footrest, and arms","Lifetime warranty on rail; 2-year warranty on parts and labor","Wide dealer network across US"],"why_it_fits":"DIY-installable straight stairlift with 12-inch folded profile and 23-inch open projection. Low-profile rail design leaves open space on stairs. 350 lb weight capacity. Widely available through dealers nationwide. Suitable for straightforward straight-staircase installations in homes under 30-inch width."},{"canonical_name":"AmeriGlide Rave 2","citations":[{"source_domain":"amazon.com","source_type":"other","title":"Amazon.com: AmeriGlide Rave 2 Stair Lift for Seniors","url":"https://www.amazon.com/AmeriGlide-Rave-Stair-Installable-Capacity/dp/B09M1ZPBD9"},{"source_domain":"ofzenandcomputing.com","source_type":"review","title":"10 Best Stair Lifts for Narrow Staircases (June 2026) Top Picks","url":"https://www.ofzenandcomputing.com/best-stair-lifts-for-narrow-staircases/"},{"source_domain":"ameriglide.com","source_type":"company","title":"Folding Rail: A Smart Upgrade for Your Stair Lift - AmeriGlide Blog","url":"https://www.ameriglide.com/blog/folding-rail-a-smart-upgrade-for-your-stair-lift/"}],"confidence":"high","important_limitations":["Straight staircases only; not suitable for curved stairs","Minimum width requirement appears to be 28-30 inches standard","DIY installation requires homeowner measurement accuracy; misalignment risks safety","Less premium construction than Savaria K2 or Handicare 1100","Warranty details not clearly specified in search results"],"official_website":"https://www.ameriglide.com/","pricing_summary":"Budget to mid-range pricing due to DIY installation option; exact pricing not disclosed but positioned as affordable alternative to professional installation.","rank":5,"recommended_product_or_plan":"AmeriGlide Rave 2 Straight Stairlift","strongest_use_case_features":["Ultra-thin folded design of 11 inches preserves staircase accessibility","DIY self-installable option reduces professional installation costs","350 lb weight capacity","All-metal case construction for durability","Battery-powered operation","Optional powered folding rail upgrade ($price unspecified) for doorway obstruction issues","Made in USA","15 linear feet of track included"],"why_it_fits":"Ultra-thin design folds to just 11 inches when collapsed, among the slimmest available. DIY self-installable with 350 lb capacity. Made in USA. Battery-powered with optional powered folding rail upgrade for homes where bottom landing space is limited. Suitable for homeowners on tight budgets seeking DIY installation."},{"canonical_name":"Stannah Starla","citations":[{"source_domain":"retirementliving.com","source_type":"review","title":"Best Stair Lifts for Narrow Staircases of 2026 (with Reviews & Cost)","url":"https://www.retirementliving.com/stair-lifts/stairlifts-for-narrow-staircases"},{"source_domain":"stannah.com","source_type":"company","title":"Compact Stairlift for Narrow Staircases | Siena Stairlift","url":"https://www.stannah.com/en-us/stairlifts/stannah-siena"}],"confidence":"moderate","important_limitations":["Straight staircases only","Requires professional installation; not DIY option","Minimum width 26 inches still requires professional measurement verification","Limited information on exact folded profile dimensions in search results","Premium pricing expected from established European manufacturer"],"official_website":"https://www.stannah.com/en-us/stairlifts/stannah-siena","pricing_summary":"Premium positioning as established brand; exact pricing not disclosed in search results. Requires dealer consultation.","rank":6,"recommended_product_or_plan":"Stannah Starla Straight Stairlift","strongest_use_case_features":["Fits narrow staircases 26-30 inches wide","Slim rail design hugs staircase closely","Seat, armrests, and footrest fold up when not in use","Professional installation ensures proper fit for tight spaces","Reliable operation with backup battery for power outages","Easy-to-use retractable seat belt","Established brand with 150+ years of stairlift experience"],"why_it_fits":"Compact straight model fits narrow staircases 26-30 inches wide with slim rail and foldable design. Seat, armrests, and footrest fold when not in use, maximizing accessibility for other users. Professional installation required. Well-established manufacturer with long operational history."},{"canonical_name":"Harmar SL600 Pinnacle","citations":[{"source_domain":"californiamobility.com","source_type":"review","title":"Most Compact Stair Lifts: Best Options for Small Spaces","url":"https://californiamobility.com/what-is-the-most-compact-stairlift-available/"},{"source_domain":"harmar.com","source_type":"company","title":"Harmar Authorized Dealer Directory","url":"https://www.harmar.com/"}],"confidence":"moderate","important_limitations":["Exact minimum staircase width specifications not clearly documented in search results","Requires professional installation through authorized Harmar dealers","Limited detailed specification information available compared to competitors","Appears to be standard compact model rather than specialized ultra-narrow model"],"official_website":"https://www.harmar.com/","pricing_summary":"Mid-range to premium pricing through Harmar dealer network; exact pricing not disclosed.","rank":7,"recommended_product_or_plan":"Harmar SL600 Pinnacle Straight Stairlift","strongest_use_case_features":["One of the narrowest models available with slim rail design","Folding rail option available for tight bottom landing spaces","Compact folded profile suitable for narrow staircases","Available through extensive Harmar dealer network in US","Power options available for enhanced convenience"],"why_it_fits":"One of the narrowest models available with slim rail design and folding footrest option. Designed for narrow staircases. Available through Harmar authorized dealers nationwide. Compact footprint when folded."},{"canonical_name":"Handicare Freecurve","citations":[{"source_domain":"101mobility.com","source_type":"company","title":"Best Stairlifts for Steep Staircases & Tight Hallways | 101 Mobility","url":"https://www.101mobility.com/blog/best-stairlift-models-for-tight-allways/"},{"source_domain":"multicare.co.uk","source_type":"review","title":"Essential Stairlifts for Narrow Stairs | Multicare Mobility","url":"https://www.multicare.co.uk/blogs/stairlift-buyers-guides/stairlifts-for-narrow-stairs-practical-options-minimum-widths-costs-uk-guide-2026"}],"confidence":"moderate","important_limitations":["Curved stairlifts are more expensive than straight models","Requires professional measurement and custom rail fabrication","Longer delivery time due to custom engineering","Higher premium pricing due to curved rail complexity","Best suited for homes with actual curved stairs, not straight narrow stairs"],"official_website":"https://www.handicare.com/","pricing_summary":"Premium pricing for custom curved stairlift; exact pricing not available in search results. Requires professional quote based on custom measurements.","rank":8,"recommended_product_or_plan":"Handicare Freecurve Curved Stairlift","strongest_use_case_features":["Single-rail design is slim and unobtrusive for narrow hallways","Custom-engineered for specific staircase geometry","Designed for homes with limited parking space at bottom of stairs","Fold-up footrests save additional space when parked","Flexible design accommodates winders and tight landings","Available through Handicare network in US"],"why_it_fits":"Single-rail curved stairlift engineered for homes with very limited space at bottom of stairs. Slim design makes it an unobtrusive option for narrow hallways. Custom-engineered for exact staircase dimensions. Suitable when curved rail can better accommodate tight turning stairs."},{"canonical_name":"Bruno Elite Curved Stairlift","citations":[{"source_domain":"lifewaymobility.com","source_type":"company","title":"Compact Stair Lifts for Narrow Staircases | Lifeway Mobility","url":"https://www.lifewaymobility.com/blog/best-stair-lifts-for-narrow-stairs/"}],"confidence":"moderate","important_limitations":["Premium pricing due to custom curved engineering","Extended lead times for custom rail fabrication","Designed primarily for curved stairs; overkill for straight narrow stairs","Requires professional installation and measurement","Not suitable for DIY installation"],"official_website":"https://www.bruno.com/","pricing_summary":"Premium pricing for custom curved stairlift; exact pricing not disclosed. Budget for higher cost than straight stairlift options.","rank":9,"recommended_product_or_plan":"Bruno Elite Curved Stairlift","strongest_use_case_features":["Custom-built to exact staircase dimensions for tight fit","Rail follows staircase contours closely, preserving walkable space","Higher weight capacity (up to 400 lbs) than most narrow models","Smooth performance and strong reliability reputation","Premium engineering for complex staircases","Bruno lifetime warranty on rail"],"why_it_fits":"Premium curved stairlift custom-built to exact staircase dimensions. For narrow curved staircases, the custom rail can follow contours closely and efficiently, maintaining as much walkable space as possible. 400 lb weight capacity exceeds most narrow models. Trusted brand with strong reliability reputation."},{"canonical_name":"UP Stairlift","citations":[{"source_domain":"upstairlift.com","source_type":"company","title":"Stairlift specifications? Discover our award-winning UP Stairlift","url":"https://www.upstairlift.com/specifications/"},{"source_domain":"ofzenandcomputing.com","source_type":"review","title":"10 Best Stair Lifts for Narrow Staircases (June 2026) Top Picks","url":"https://www.ofzenandcomputing.com/best-stair-lifts-for-narrow-staircases/"}],"confidence":"moderate","important_limitations":["Lower weight capacity of 125 kg (275 lbs) compared to standard models","Availability in US appears limited compared to established brands","Less established market presence than Bruno, Handicare, Stannah","Technical specifications not fully detailed for narrow staircase performance","Professional installation required"],"official_website":"https://www.upstairlift.com/","pricing_summary":"Competitive pricing benefit from modular design (no factory customization costs). Exact pricing not disclosed in search results.","rank":10,"recommended_product_or_plan":"UP Stairlift (Straight or Curved)","strongest_use_case_features":["Modular aluminum rail fits on every staircase width without customization delay","Revolutionary space-saving profile ensures slim fit on narrow stairs","Only 2 rail parts requiring no factory customization speeds delivery","Completely reusable and 100% recyclable aluminum components","100% modular means same rail fits straight, curved, spiral stairs","Award-winning design with luxurious chair upholstery","WiFi connectivity for remote diagnostics"],"why_it_fits":"Modular aluminum rail design fits on virtually every staircase width including narrow stairs under 30 inches. Revolutionary space-saving profile and slim design. Quick delivery because modular rail requires no factory customization. Award-winning design. Available through Access BDD and other US dealers."}],"research_date":"2026-08-12","topic":"Best Stairlifts for Narrow Staircases"},"platform":"anthropic","promptCommitmentSha256":"365769c5ea1d2be1b6772b2380f9cd4fbc792cf9d54fb2409847629713cae2f6","researchDateReported":"2026-08-12","responseCommitmentSha256":"8ab95c2a7ffbd048e8e636a15f5ca410688ca0318f295a799201738b7a862b47","stage":"ranking_discovery","status":"valid"},{"completedAt":"2026-08-12 05:27:41.675216+00","evidence":{"methodology_note":"One response to one standardized ranking prompt. Recommendations are based on publicly available information from manufacturer websites and general stairlift reviews. Confidence reflects the availability of specific narrow-staircase suitability data.","platform_name":"Narrow Stairlift Buyer Guide","recommendations":[{"canonical_name":"Stannah Stairlifts","citations":[{"source_domain":"stannah.com","source_type":"company","title":"Stannah Stairlifts for Narrow Stairs","url":"https://www.stannah.com/stairlifts/narrow-stairs"}],"confidence":"high","important_limitations":["Custom installation may have variable lead times","Price not publicly listed, typically $3,500-$5,000"],"official_website":"https://www.stannah.com","pricing_summary":"Not publicly listed; estimated $3,500-$5,000 installed","rank":1,"recommended_product_or_plan":"Stannah S-Class 300E","strongest_use_case_features":["Minimum stair width of 28 inches","Folding footrest and armrests for clearance","Slim, discreet rail design","Swivel seat at top for safe exit"],"why_it_fits":"The S-Class 300E is designed for narrow staircases with a slim rail profile and a folding footrest that tucks away, minimizing obstructed space. It requires only 28 inches of stair width, making it ideal for compact stairways under 30 inches."},{"canonical_name":"Bruno Stairlifts","citations":[{"source_domain":"bruno.com","source_type":"company","title":"Bruno Elan 305 Stairlift","url":"https://www.bruno.com/elan-305-stairlift"}],"confidence":"high","important_limitations":["Not as widely available in all regions","Price typically higher than some competitors"],"official_website":"https://www.bruno.com","pricing_summary":"Typically $3,500-$4,500 installed","rank":2,"recommended_product_or_plan":"Bruno Elan 305","strongest_use_case_features":["Minimum stair width of 28 inches","Folding seat, armrests, and footrest","Compact rail design","Smooth, quiet operation"],"why_it_fits":"The Bruno Elan 305 is built for tight spaces, with a minimum stair width requirement of 28 inches and a compact folding rail that reduces intrusion. Its folding footrest and armrests increase clearance for foot traffic."},{"canonical_name":"Acorn Stairlifts","citations":[{"source_domain":"acornstairlifts.com","source_type":"company","title":"Acorn 130 Superglide Specifications","url":"https://www.acornstairlifts.com/straight-stairlifts/130-superglide"}],"confidence":"high","important_limitations":["Straight-rail only, not for curved stairs","Some users report need for periodic maintenance"],"official_website":"https://www.acornstairlifts.com","pricing_summary":"Typically $3,000-$4,000 installed","rank":3,"recommended_product_or_plan":"Acorn 130 Superglide (Straight)","strongest_use_case_features":["Minimum stair width of 27 inches","Folding footrest and armrests","Slim rail design","Swivel seat for easy exit"],"why_it_fits":"The Acorn 130 Superglide is designed for narrow staircases, requiring only 27 inches of stair width. Its folding footrest and armrests collapse to a slim profile, and the rail is mounted close to the wall to preserve space."},{"canonical_name":"Harmar Stairlifts","citations":[{"source_domain":"harmar.com","source_type":"company","title":"Harmar SL600 Stairlift","url":"https://www.harmar.com/products/sl600-stairlift"}],"confidence":"moderate","important_limitations":["Limited curved rail options","May require professional installation from a dealer"],"official_website":"https://www.harmar.com","pricing_summary":"Typically $3,000-$4,000 installed","rank":4,"recommended_product_or_plan":"Harmar SL600 (Straight)","strongest_use_case_features":["Minimum stair width of 28 inches","Folding footrest and armrests","Slim rail profile","Quiet motor"],"why_it_fits":"The Harmar SL600 is a compact straight stairlift with a minimum stair width of 28 inches. It features a folding footrest and armrests that reduce the folded profile, and its rail is designed to minimize obstruction."},{"canonical_name":"AmeriGlide Stairlifts","citations":[{"source_domain":"ameriglide.com","source_type":"company","title":"AmeriGlide EZ-900 Stairlift","url":"https://www.ameriglide.com/ez-900-stairlift"}],"confidence":"moderate","important_limitations":["Less premium build quality compared to top brands","Limited customer support availability"],"official_website":"https://www.ameriglide.com","pricing_summary":"Typically $2,500-$3,500 installed","rank":5,"recommended_product_or_plan":"AmeriGlide EZ-900 (Straight)","strongest_use_case_features":["Minimum stair width of 28 inches","Folding footrest and armrests","Affordable pricing","Easy installation"],"why_it_fits":"The AmeriGlide EZ-900 is a budget-friendly option for narrow stairs, with a minimum stair width of 28 inches. Its folding footrest and armrests help clear the staircase, and the rail is designed to be slim."},{"canonical_name":"MediStair Stairlifts","citations":[{"source_domain":"medistair.com","source_type":"company","title":"MediStair Orion Stairlift","url":"https://www.medistair.com/orion-stairlift"}],"confidence":"moderate","important_limitations":["Less established in the US market","Availability may be limited to certain regions"],"official_website":"https://www.medistair.com","pricing_summary":"Typically $3,000-$4,000 installed","rank":6,"recommended_product_or_plan":"MediStair Orion (Straight)","strongest_use_case_features":["Minimum stair width of 28 inches","Folding footrest and armrests","Compact rail design","European engineering"],"why_it_fits":"The MediStair Orion is designed for narrow staircases, requiring a minimum of 28 inches of stair width. It features a folding footrest and armrests, and a slim rail to keep the walkway clear."},{"canonical_name":"Savaria Stairlifts","citations":[{"source_domain":"savaria.com","source_type":"company","title":"Savaria Vuelift Stairlift","url":"https://www.savaria.com/products/vuelift-stairlift"}],"confidence":"low","important_limitations":["Minimum stair width not specified but likely 28 inches","Higher price point"],"official_website":"https://www.savaria.com","pricing_summary":"Typically $3,500-$5,000 installed","rank":7,"recommended_product_or_plan":"Savaria Vuelift (Straight)","strongest_use_case_features":["Folding footrest and armrests","Slim rail design","Quiet operation","Durable construction"],"why_it_fits":"The Savaria Vuelift is a straight stairlift with a compact design, suitable for narrow staircases. It has a folding footrest and armrests, and the rail is mounted to minimize space usage, though minimum stair width is not aggressively advertised."}],"research_date":"2026-08-12","topic":"Best Stairlifts for Narrow Staircases"},"platform":"deepseek","promptCommitmentSha256":"365769c5ea1d2be1b6772b2380f9cd4fbc792cf9d54fb2409847629713cae2f6","researchDateReported":"2026-08-12","responseCommitmentSha256":"4a722b451753c228f418d46c12d2ec8983756777d0632ee77f0d2bddd6204736","stage":"ranking_discovery","status":"valid"},{"completedAt":"2026-08-12 05:26:54.074938+00","evidence":{"methodology_note":"One response to one standardized ranking prompt.","platform_name":"","recommendations":[{"canonical_name":"Harmar Pinnacle Premium SL600","citations":[{"source_domain":"caringvillage.com","source_type":"review","title":"10 Best Stair Lift Companies of 2026, Compared","url":"https://caringvillage.com/product-reviews/stair-lifts/"},{"source_domain":"lifewaymobility.com","source_type":"company","title":"Compact Stair Lifts for Narrow Staircases","url":"https://www.lifewaymobility.com/blog/best-stair-lifts-for-narrow-stairs/"}],"confidence":"high","important_limitations":["Primarily for straight stairs","Requires professional measurement for exact fit"],"official_website":"https://www.harmar.com","pricing_summary":"Starting around $2,200–$4,000 installed (varies by dealer)","rank":1,"recommended_product_or_plan":"Harmar SL600 / Pinnacle Premium SL600 straight stairlift","strongest_use_case_features":["10.5-inch folded depth","Slim rail design","350 lb capacity","Helical worm gear drive for quiet operation"],"why_it_fits":"Slim rail and ultra-compact folded profile of 10.5 inches maximize clearance on stairways under 30 inches wide; available through US dealers."},{"canonical_name":"Savaria K2","citations":[{"source_domain":"savaria.com","source_type":"company","title":"K2 Straight Stairlift","url":"https://www.savaria.com/stairlifts/products/straight-k2"},{"source_domain":"caringvillage.com","source_type":"review","title":"10 Best Stair Lift Companies of 2026, Compared","url":"https://caringvillage.com/product-reviews/stair-lifts/"}],"confidence":"high","important_limitations":["Straight stairs only","Weight capacity drops over steeper inclines"],"official_website":"https://www.savaria.com","pricing_summary":"From approximately $3,299 installed","rank":2,"recommended_product_or_plan":"Savaria K2 straight stairlift","strongest_use_case_features":["10.75-inch folded depth","Compact L or V seat options","350 lb capacity","Rack and pinion drive"],"why_it_fits":"Folds to 10.75 inches from wall; explicitly designed for narrow staircases and available via US dealers."},{"canonical_name":"Bruno Elan","citations":[{"source_domain":"lifewaymobility.com","source_type":"company","title":"Compact Stair Lifts for Narrow Staircases","url":"https://www.lifewaymobility.com/blog/best-stair-lifts-for-narrow-stairs/"},{"source_domain":"caringvillage.com","source_type":"review","title":"10 Best Stair Lift Companies of 2026, Compared","url":"https://caringvillage.com/product-reviews/stair-lifts/"}],"confidence":"high","important_limitations":["Best for straight stairs","Lower weight capacity than premium models"],"official_website":"https://www.bruno.com","pricing_summary":"From approximately $3,900 installed","rank":3,"recommended_product_or_plan":"Bruno Elan straight stairlift","strongest_use_case_features":["Slim rail design","Folding seat/armrest/footrest","300 lb capacity","Battery backup"],"why_it_fits":"Narrow vertical rail and folding components suit stairways 28-30 inches wide; US-manufactured and widely available."},{"canonical_name":"Otolift Modular","citations":[{"source_domain":"lifewaymobility.com","source_type":"company","title":"Compact Stair Lifts for Narrow Staircases","url":"https://www.lifewaymobility.com/blog/best-stair-lifts-for-narrow-stairs/"}],"confidence":"moderate","important_limitations":["Curved models require custom measurement","Availability through select dealers"],"official_website":"https://www.lifewaymobility.com","pricing_summary":"Project-based pricing, typically higher for curved","rank":4,"recommended_product_or_plan":"Otolift Modular Curved stairlift","strongest_use_case_features":["Thinnest rail profile","Accommodates 24-inch stairs","Reverse drive technology","Folding components"],"why_it_fits":"Modular rail and turn-go seat accommodate curved stairs as narrow as 24 inches; available in US via dealers like Lifeway Mobility."},{"canonical_name":"Handicare 1100","citations":[{"source_domain":"caringvillage.com","source_type":"review","title":"10 Best Stair Lift Companies of 2026, Compared","url":"https://caringvillage.com/product-reviews/stair-lifts/"}],"confidence":"moderate","important_limitations":["Lower weight capacity options","Primarily straight stairs"],"official_website":"https://www.handicare.com","pricing_summary":"From approximately $2,600–$3,700 installed","rank":5,"recommended_product_or_plan":"Handicare 1100 straight stairlift","strongest_use_case_features":["12.6-inch folded profile","Friction-drive system","Patented slim rail"],"why_it_fits":"Ultra-streamlined 12.6-inch folded profile and slim design for narrow US stairways."}],"research_date":"2026-08-12","topic":"Best Stairlifts for Narrow Staircases"},"platform":"grok","promptCommitmentSha256":"365769c5ea1d2be1b6772b2380f9cd4fbc792cf9d54fb2409847629713cae2f6","researchDateReported":"2026-08-12","responseCommitmentSha256":"851f59b0ba003309865083b5d2931394a57629674223f730a5132b6d2370348a","stage":"ranking_discovery","status":"valid"},{"completedAt":"2026-08-12 05:26:59.103802+00","evidence":{"methodology_note":"One response to one standardized ranking prompt.","platform_name":"Perplexity","recommendations":[{"canonical_name":"Access BDD Flow X","citations":[{"source_domain":"accessbdd.com","source_type":"company","title":"Stair Lifts for Narrow Staircases","url":"https://www.accessbdd.com/us/stair-lifts-for-narrow-staircases/"},{"source_domain":"which.co.uk","source_type":"review","title":"Best stairlift brands - Which?","url":"https://www.which.co.uk/reviews/stairlifts/article/best-stairlift-brands-aXz5b3H3bI62"},{"source_domain":"seniorstairlifts.co.uk","source_type":"directory","title":"Best Stairlifts For Narrow Or Spiral Stairs [Expert Picks]","url":"https://seniorstairlifts.co.uk/news/best-stairlifts-for-narrow-or-spiral-stairs-expert-picks/"}],"confidence":"high","important_limitations":["Availability depends on U.S. dealer coverage and installation network","Curved-stair pricing and lead times are not standardized publicly","For some homes under 30 in, site-specific clearance may still rule out a lift"],"official_website":"https://www.accessbdd.com/us/stair-lifts-for-narrow-staircases/","pricing_summary":"Quote-based; no reliable public U.S. list price found in the available sources.","rank":1,"recommended_product_or_plan":"Flow X stairlift (straight/curved configurations via Access BDD network in the U.S.)","strongest_use_case_features":["Minimum stair width: 610 mm (24 in)","Slim single-tube rail","Auto-swivel seat for tight corners","Compact fit for narrow and awkward staircases"],"why_it_fits":"Best match for very narrow stairways because it is explicitly designed for tight spaces, including staircases as narrow as 610 mm (24 in), with a slim single-tube rail and auto-swivel seating to reduce obstruction and turning radius."},{"canonical_name":"Stannah Siena","citations":[{"source_domain":"stannah.com","source_type":"company","title":"Stannah Siena - Compact Stairlift for Narrow Staircases","url":"https://www.stannah.com/en-us/stairlifts/stannah-siena"},{"source_domain":"stannah.com","source_type":"company","title":"Your Guide to Compact Stairlifts for Narrow Stairs","url":"https://www.stannah.com/en-us/resources/stairlifts-dont-get-way"},{"source_domain":"which.co.uk","source_type":"review","title":"Best stairlift brands - Which?","url":"https://www.which.co.uk/reviews/stairlifts/article/best-stairlift-brands-aXz5b3H3bI62"}],"confidence":"high","important_limitations":["Public U.S. page provided limited technical dimensions in the search results","May not suit extremely tight stairs if local clearance is below installer minimums","Price is quote-based"],"official_website":"https://www.stannah.com/en-us/stairlifts/stannah-siena","pricing_summary":"Quote-based; no verified public U.S. list price in the supplied sources.","rank":2,"recommended_product_or_plan":"Stannah Siena compact stairlift","strongest_use_case_features":["Compact design for narrow staircases","U.S. availability through Stannah","Suitable when preserving foot traffic is a priority"],"why_it_fits":"A strong U.S. option for narrow straight staircases because Stannah markets it specifically as a compact stairlift for narrow stairs, making it a practical fit when folded-footprint and passenger clearance matter."},{"canonical_name":"Harmar Pinnacle SL600","citations":[{"source_domain":"harmar.com","source_type":"company","title":"Comparing the Best Stairlift Brands","url":"https://www.harmar.com/blog/compare-the-best-stairlifts-harmar-vs-handicare-stannah-bruno-and-acorn/"},{"source_domain":"caringvillage.com","source_type":"review","title":"10 Best Stair Lift Companies of 2026, Compared","url":"https://caringvillage.com/product-reviews/stair-lifts/"},{"source_domain":"retirementliving.com","source_type":"review","title":"Best Stair Lifts of 2025 (With Costs)","url":"https://www.retirementliving.com/stair-lifts"}],"confidence":"moderate","important_limitations":["The exact folded width and minimum staircase width were not consistently stated in the supplied sources","Some model-specific dimensions require dealer confirmation","Quote-based pricing"],"official_website":"https://www.harmar.com/blog/compare-the-best-stairlifts-harmar-vs-handicare-stannah-bruno-and-acorn/","pricing_summary":"Quote-based; no reliable public list price found in the provided sources.","rank":3,"recommended_product_or_plan":"Harmar Pinnacle SL600 straight stairlift","strongest_use_case_features":["Narrow folded profile","Good fit when aisle clearance is the main constraint","U.S. manufacturer with dealer-based availability"],"why_it_fits":"Well suited to narrow U.S. stairways because independent and company sources describe Harmar’s Pinnacle line as having one of the narrowest folded profiles on the market, which helps minimize blockage of foot traffic."},{"canonical_name":"Handicare Freecurve","citations":[{"source_domain":"lifewaymobility.com","source_type":"company","title":"Compare Best Stair Lifts of 2025","url":"https://www.lifewaymobility.com/resources/product-guides/stair-lift-comparison-chart/"},{"source_domain":"elderlifefinancial.com","source_type":"other","title":"Best Stair Lifts of 2026 - ElderLife Financial Services","url":"https://www.elderlifefinancial.com/best-stair-lifts-of-2026/"},{"source_domain":"mobility123.com","source_type":"review","title":"Best Stairlift Brands 2026: Bruno vs Acorn vs Access BDD ...","url":"https://www.mobility123.com/blog/best-stairlift-brands-comparison-guide/"}],"confidence":"moderate","important_limitations":["Best suited to curved or difficult layouts rather than the tightest straight-run stairs","Public U.S. source details in the supplied results were incomplete","Pricing varies by dealer and configuration"],"official_website":"https://www.lifewaymobility.com/resources/product-guides/stair-lift-comparison-chart/","pricing_summary":"Quote-based; no reliable public list price in the supplied sources.","rank":4,"recommended_product_or_plan":"Handicare Freecurve curved stairlift","strongest_use_case_features":["Slim single-tube rail","Designed for tight, winding staircases","Powered swivel seat available on some dealer offerings"],"why_it_fits":"A good narrow-stair choice when the staircase is tight and/or curved, because it is repeatedly described as using a slim single-tube rail and being built for tight, winding staircases."},{"canonical_name":"Bruno Elan Straight Stair Lift","citations":[{"source_domain":"consumeraffairs.com","source_type":"review","title":"Best Stair Lifts","url":"https://www.consumeraffairs.com/homeowners/stairlifts/"},{"source_domain":"modernize.com","source_type":"review","title":"Best Stairlift Brands of 2026 for Safe Home Mobility","url":"https://modernize.com/stair-lifts/best-brands"},{"source_domain":"elderlifefinancial.com","source_type":"other","title":"Best Stair Lifts of 2026 - ElderLife Financial Services","url":"https://www.elderlifefinancial.com/best-stair-lifts-of-2026/"}],"confidence":"moderate","important_limitations":["The exact folded depth and minimum stair width were not provided in the available sources","Best fit is usually confirmed by dealer measurement rather than brochure specs","Not the narrowest option in the market"],"official_website":"https://www.consumeraffairs.com/homeowners/stairlifts/","pricing_summary":"Quote-based; public starting prices were not verified in the supplied sources for this exact model.","rank":5,"recommended_product_or_plan":"Bruno Elan straight stair lift","strongest_use_case_features":["U.S.-made manufacturer","Slim rail design","Strong general dealer support","Good value relative to premium imports"],"why_it_fits":"A strong value-oriented U.S. option for narrow straight staircases because Bruno is repeatedly cited as a top manufacturer and is known for slim rails and folded-to-wall designs that preserve walking space."},{"canonical_name":"Savaria K2","citations":[{"source_domain":"caringvillage.com","source_type":"review","title":"10 Best Stair Lift Companies of 2026, Compared","url":"https://caringvillage.com/product-reviews/stair-lifts/"},{"source_domain":"retirementliving.com","source_type":"review","title":"Best Stair Lifts of 2025 (With Costs)","url":"https://www.retirementliving.com/stair-lifts"},{"source_domain":"mobility123.com","source_type":"review","title":"Best Stairlift Brands 2026: Bruno vs Acorn vs Access BDD ...","url":"https://www.mobility123.com/blog/best-stairlift-brands-comparison-guide/"}],"confidence":"low","important_limitations":["The provided sources did not give a consistent manufacturer-published U.S. dimension sheet","Availability and exact configuration should be confirmed with a U.S. dealer","Not enough primary-source dimensional detail in the results"],"official_website":"https://caringvillage.com/product-reviews/stair-lifts/","pricing_summary":"Quote-based; no verified public list price found in the supplied sources.","rank":6,"recommended_product_or_plan":"Savaria K2 straight stairlift","strongest_use_case_features":["Very slim folded profile reported around 10.5–10.75 in in review sources","Compact straight-stair footprint","Useful when preserving foot traffic is critical"],"why_it_fits":"A credible narrow-stair contender because it is listed among models with very slim folded profiles, making it useful where the stair width is under 30 inches and the lift must stay as unobtrusive as possible."},{"canonical_name":"Handicare 1100","citations":[{"source_domain":"seniorstairlifts.co.uk","source_type":"directory","title":"Narrow Stair Lift Guide: Flow X, Platinum Ultimate & More","url":"https://seniorstairlifts.co.uk/news/what-is-the-most-narrow-stair-lift/"},{"source_domain":"modernize.com","source_type":"review","title":"Best Stairlift Brands of 2026 for Safe Home Mobility","url":"https://modernize.com/stair-lifts/best-brands"},{"source_domain":"accessbdd.com","source_type":"company","title":"Stairlifts for Narrow Staircases | Discover ASL Technology Today","url":"https://www.accessbdd.com/us/stair-lifts-for-narrow-staircases/"}],"confidence":"low","important_limitations":["The strongest dimensional details in the supplied results came from non-U.S. sources","U.S. availability is dealer-dependent and was not fully documented in the provided sources","No trustworthy public U.S. price was found"],"official_website":"https://seniorstairlifts.co.uk/news/what-is-the-most-narrow-stair-lift/","pricing_summary":"Quote-based; no verified public U.S. list price in the supplied sources.","rank":7,"recommended_product_or_plan":"Handicare 1100 straight stairlift","strongest_use_case_features":["Very narrow profile","Straight-stair use where space is extremely limited","Compact folded form"],"why_it_fits":"Often recommended for very narrow straight staircases because it is described as one of the narrowest stairlifts, which can be useful when the available width is close to the practical minimum."},{"canonical_name":"Acorn 130 Stairlift","citations":[{"source_domain":"modernize.com","source_type":"review","title":"Best Stairlift Brands of 2026 for Safe Home Mobility","url":"https://modernize.com/stair-lifts/best-brands"},{"source_domain":"retirementliving.com","source_type":"review","title":"Best Stair Lifts of 2025 (With Costs)","url":"https://www.retirementliving.com/stair-lifts"},{"source_domain":"consumeraffairs.com","source_type":"review","title":"Best Stair Lifts","url":"https://www.consumeraffairs.com/homeowners/stairlifts/"}],"confidence":"low","important_limitations":["Not identified in the supplied sources as the best narrow-stair specialist","Public sources did not confirm the smallest folded depth or minimum staircase width","Less compelling than purpose-built narrow-fit models for sub-30-inch stairs"],"official_website":"https://modernize.com/stair-lifts/best-brands","pricing_summary":"Typically quote-based; no reliable model-specific public list price found in the supplied sources.","rank":8,"recommended_product_or_plan":"Acorn 130 straight stairlift","strongest_use_case_features":["Widely available in the U.S.","Fast installation reputation","Straight-stair option"],"why_it_fits":"A common U.S. choice with broad availability and quick installation, which can be attractive when the buyer needs a straightforward straight-stair solution and dealer access matters more than the absolute slimmest profile."},{"canonical_name":"Bruno Elite Curved Indoor Stair Lift","citations":[{"source_domain":"elderlifefinancial.com","source_type":"other","title":"Best Stair Lifts of 2026 - ElderLife Financial Services","url":"https://www.elderlifefinancial.com/best-stair-lifts-of-2026/"},{"source_domain":"consumeraffairs.com","source_type":"review","title":"Best Stair Lifts","url":"https://www.consumeraffairs.com/homeowners/stairlifts/"},{"source_domain":"modernize.com","source_type":"review","title":"Best Stairlift Brands of 2026 for Safe Home Mobility","url":"https://modernize.com/stair-lifts/best-brands"}],"confidence":"low","important_limitations":["Curved systems usually need more room than straight lifts","No public narrow-stair minimum width was confirmed in the supplied results","Likely overkill for a simple straight stair under 30 inches"],"official_website":"https://www.elderlifefinancial.com/best-stair-lifts-of-2026/","pricing_summary":"Quote-based; no verified public list price in the supplied sources.","rank":9,"recommended_product_or_plan":"Bruno Elite curved indoor stair lift","strongest_use_case_features":["Premium curved-stair build","Slim rail reputation","Strong U.S. dealer network"],"why_it_fits":"A premium curved-stair option that may fit narrow staircases better than many generic curved lifts because Bruno is consistently described as having slim rails and strong fit-and-finish."},{"canonical_name":"Stannah Starla","citations":[{"source_domain":"consumeraffairs.com","source_type":"review","title":"Best Stair Lifts","url":"https://www.consumeraffairs.com/homeowners/stairlifts/"},{"source_domain":"modernize.com","source_type":"review","title":"Stannah - Best Brands of 2026","url":"https://modernize.com/stair-lifts/best-brands"},{"source_domain":"stannah.com","source_type":"company","title":"Your Guide to Compact Stairlifts for Narrow Stairs","url":"https://www.stannah.com/en-us/resources/stairlifts-dont-get-way"}],"confidence":"low","important_limitations":["The supplied sources did not provide the narrowest dimensions or folded profile for this model","Less explicitly narrow-focused than the Siena","Quote-based pricing"],"official_website":"https://www.consumeraffairs.com/homeowners/stairlifts/","pricing_summary":"Quote-based; public starting price was not verified in the supplied sources for this exact model.","rank":10,"recommended_product_or_plan":"Stannah Starla straight stairlift","strongest_use_case_features":["Straight-stair configuration","Established U.S. brand presence","Good fit when the staircase is narrow but not extreme"],"why_it_fits":"A usable compact straight-stair option from a reputable U.S.-available manufacturer, especially when the buyer wants a well-supported brand and a standard straight configuration."}],"research_date":"2026-08-12","topic":"Best Stairlifts for Narrow Staircases"},"platform":"perplexity","promptCommitmentSha256":"365769c5ea1d2be1b6772b2380f9cd4fbc792cf9d54fb2409847629713cae2f6","researchDateReported":"2026-08-12","responseCommitmentSha256":"faeb01e6207106ea8d7e6ea91c785617c9ee3545cd5770a5ef273127fc7ad5c5","stage":"ranking_discovery","status":"valid"},{"completedAt":"2026-08-12 05:27:36.466862+00","evidence":{"methodology_note":"One response to one standardized ranking prompt.","platform_name":"","recommendations":[{"canonical_name":"Harmar SL600 Pinnacle Premium","citations":[{"source_domain":"harmar.com","source_type":"company","title":"SL600 Pinnacle Premium Stairlifts – Harmar","url":"https://www.harmar.com/products/sl600/"}],"confidence":"high","important_limitations":["Straight stairs only—no curved configuration","Folding rail option increases folded width to 13 5/8\"","Seat size 18\" x 14 3/8\" may be snug for larger users"],"official_website":"https://www.harmar.com/products/sl600/","pricing_summary":"Mid-to-premium pricing tier; exact pricing requires dealer quote. Typically $3,000-$5,500 installed depending on track length and options.","rank":1,"recommended_product_or_plan":"SL600 Pinnacle Premium Straight Stairlift","strongest_use_case_features":["10.5\" folded width—narrowest available","No grease/lubrication nylon gear rack","60-trip battery backup capacity","350 lb weight capacity","Optional folding rail for doorway clearance"],"why_it_fits":"Narrowest folded profile in the industry at 10.5 inches from wall, specifically engineered for narrow stairways. Made in USA with established distribution network. 350 lb capacity despite compact design. Nylon polymer gear rack requires no grease, reducing maintenance. Up to 60 trips on battery backup during outages."},{"canonical_name":"Bruno Elan SRE-3050","citations":[{"source_domain":"accesssolutionsonline.com","source_type":"company","title":"Bruno Elan SRE-3050 Stairlift | Access Solutions, Inc.","url":"https://www.accesssolutionsonline.com/stairlifts/bruno-elan"}],"confidence":"high","important_limitations":["Straight stairs only","300 lb capacity lower than some competitors","Specific folded width dimension not stated in available materials"],"official_website":"https://www.bruno.com","pricing_summary":"Premium pricing; typically $3,500-$6,000 installed. Bruno's domestic manufacturing and service network command price premium.","rank":2,"recommended_product_or_plan":"Elan SRE-3050 Straight Indoor Stairlift","strongest_use_case_features":["Ultra-narrow vertical rail closest to wall","Offset swivel seat extends away from steps","300 lb capacity","Covered gear rack for clean appearance","Engineered and manufactured in USA"],"why_it_fits":"Marketed as installing closer to wall than any stairlift on market via ultra-narrow vertical rail. Made in Wisconsin, USA. Offset swivel seat rotates 90 degrees and extends away from steps, critical for narrow landings. Strong domestic manufacturing and service network."},{"canonical_name":"Savaria K2","citations":[{"source_domain":"savaria.com","source_type":"company","title":"K2 Straight Stairlift | Best-Selling for Seniors - Savaria","url":"https://www.savaria.com/stairlifts/products/straight-k2"}],"confidence":"high","important_limitations":["Straight stairs only","Slightly wider folded profile than Harmar SL600","Canadian company—US service network less extensive than domestic manufacturers"],"official_website":"https://www.savaria.com","pricing_summary":"Mid-range pricing; competitive value. Typically $2,800-$4,500 installed.","rank":3,"recommended_product_or_plan":"K2 Straight Stairlift with L Seat or V Seat","strongest_use_case_features":["10.75\" folded depth with L seat","Width-adjustable armrests","350 lb capacity","Battery powered with built-in charging","Quick installation"],"why_it_fits":"Canadian manufacturer with US distribution. Folds to 10.75\" (L seat) or 11.25\" (V seat)—among the most compact. Rack and pinion system proven reliable. Width-adjustable armrests allow customization. Quick installation. Good value proposition for narrow straight stairs."},{"canonical_name":"Handicare 1100","citations":[{"source_domain":"101mobility.com","source_type":"company","title":"Handicare 1100: Sleek and Slim Straight Stairlift for Narrow Spaces | 101 Mobility","url":"https://www.101mobility.com/products/handicare-1100/"}],"confidence":"high","important_limitations":["Higher folded profile than top three options","309 lb weight capacity—lower than competitors","Requires dealer network (101 Mobility) for US availability","Straight stairs only"],"official_website":"https://www.handicare.com","pricing_summary":"Mid-to-premium range with upgrade costs for powered features. Typically $3,200-$5,500 depending on configuration.","rank":4,"recommended_product_or_plan":"1100 Straight Stairlift with Style Seat option","strongest_use_case_features":["12.6\" slim folded profile","Patented Multi-Drive System and Friction Design","Powered swivel and footrest upgrade options","Continuous charging","Modern aesthetic design"],"why_it_fits":"12.6\" folded profile with patented multi-drive and friction design systems. Available through 101 Mobility dealer network in US. Style Seat option adds powered footrest folding and swivel for enhanced narrow-space usability. Modern aesthetic. Continuous charging function."},{"canonical_name":"Access Flow X","citations":[{"source_domain":"powerstairlifts.com","source_type":"company","title":"Access Flow X Stairlift from Power Stair Lifts—Widely Used for Narrow Staircases","url":"https://powerstairlifts.com/access-flow-x-stairlift-for-narrow-staircases/"}],"confidence":"moderate","important_limitations":["European manufacturer—US availability and service network less certain","Specific folded dimensions not stated in available materials","Less established US dealer network","Higher complexity may mean higher maintenance"],"official_website":"https://www.accessbility.com","pricing_summary":"Premium pricing expected due to advanced technology and curved capability. Exact US pricing insufficiently available; likely $4,500-$8,000+.","rank":5,"recommended_product_or_plan":"Flow X Stairlift","strongest_use_case_features":["Minimum 24\" staircase width—narrowest requirement","Single rail design close to step","Straight AND curved staircase compatibility","ASL technology for steep/narrow combinations","Installs on either side"],"why_it_fits":"Advanced Swivel and Levelling (ASL) technology enables installation on staircases as narrow as 610mm (24 inches)—narrowest minimum width requirement found. Single rail design installs closer to step. Handles both straight and curved narrow staircases, unique among compact options. Critical for very narrow stairs where others won't fit."},{"canonical_name":"Stannah Siena","citations":[{"source_domain":"stannah.com","source_type":"company","title":"Compact Stairlift for Narrow Staircases | Siena Stairlift","url":"https://www.stannah.com/en-us/stairlifts/stannah-siena"}],"confidence":"high","important_limitations":["Larger folded profile (14.5\"-16\") than leading competitors","May not fit under 30\" staircases where foot traffic preservation is critical","Premium pricing","British company—some production overseas"],"official_website":"https://www.stannah.com/en-us","pricing_summary":"Premium tier; typically $4,000-$7,500+ depending on straight/curved and customization.","rank":6,"recommended_product_or_plan":"Siena Straight or Curved Stairlift","strongest_use_case_features":["Curved seatback prevents knee protrusion","Straight and curved options","350-352 lb high capacity","Powered footrest option","Established US operations"],"why_it_fits":"British manufacturer with established US presence. 14.5\" folded depth (straight) or 16\" (curved). Wider/deeper seat with curved seatback keeps knees from protruding—important for narrow stairs where knee clearance matters. 350-352 lb capacity. Customizations available for tight spaces. 150 years of engineering heritage."},{"canonical_name":"Lehner Lifttechnik Essential","citations":[{"source_domain":"lehner-lifttechnik.com","source_type":"company","title":"Essential | Lehner Lift Technology","url":"https://www.lehner-lifttechnik.com/en/lifts/seated-stairlifts/essential/"}],"confidence":"low","important_limitations":["Austrian manufacturer—US availability and certification uncertain","140 kg/308 lb capacity lower than competitors","Straight stairs only","US dealer network and service support unclear","Unfolded width 546mm (21.5\") may be wide for some users"],"official_website":"https://www.lehner-lifttechnik.com","pricing_summary":"Pricing information insufficient for US market. If available, likely premium import pricing with potential service challenges.","rank":7,"recommended_product_or_plan":"Essential Seated Stairlift","strongest_use_case_features":["10.7\" folded width—globally competitive","Battery operation during outages","Simple robust design","Safety contact strips and safety catch"],"why_it_fits":"273mm (10.7\") folded width—among narrowest globally. 140 kg (308 lb) capacity. Battery operation for power outages. Simple, robust design for trouble-free use. Explicitly marketed as one of narrowest stairlifts worldwide."},{"canonical_name":"UP Stairlift","citations":[{"source_domain":"upstairlift.com","source_type":"company","title":"Award-winning Stairlifts for narrow stairs - UP Stairlift","url":"https://www.upstairlift.com/stairlifts/stairlift-for-narrow-stairs/"}],"confidence":"low","important_limitations":["European manufacturer—US availability uncertain","Specific US certification (FDA, UL) not confirmed","US dealer/service network unclear","Exact folded dimensions may differ from protrusion measurement"],"official_website":"https://www.upstairlift.com","pricing_summary":"Pricing information insufficient for US market. Modular on-site customization suggests competitive pricing but import/logistics costs unknown.","rank":8,"recommended_product_or_plan":"UP Stairlift for Narrow Stairs","strongest_use_case_features":["7.1\" protrusion from wall—extremely compact","26.8\" minimum staircase width","Fully foldable all components","Modular rail customizable on site","Straight and curved options"],"why_it_fits":"Protrudes only 18cm (7.1\") from wall when folded—extremely compact. 38.5cm wide when folded. Minimum 68cm (26.8\") stairway width. Fully foldable seat, armrests, footrest. Modular rail customizable on site. Automatic swivel chair. Straight and curved options."}],"research_date":"2026-08-12","topic":"Best Stairlifts for Narrow Staircases"},"platform":"kimi","promptCommitmentSha256":"365769c5ea1d2be1b6772b2380f9cd4fbc792cf9d54fb2409847629713cae2f6","researchDateReported":"2026-08-12","responseCommitmentSha256":"cb7ec0cc919ba642f7fe410a9d72e403fe90e981c6f531e64d4807d06a1b9e3f","stage":"ranking_discovery","status":"valid"},{"completedAt":"2026-08-12 05:27:18.508794+00","evidence":{"methodology_note":"Evaluated leading U.S. stairlift manufacturers based on published physical dimensions, focusing on minimum staircase width tolerances, folded chair depths, and rail footprints to determine the best space-saving configurations for homes with stairs under 30 inches wide.","platform_name":"AI Consensus Index","recommendations":[{"canonical_name":"Harmar","citations":[{"source_domain":"101mobility.com","source_type":"directory","title":"HARMAR SL600 PINNACLE STAIR LIFT - 101 Mobility","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQH3FmyyB0S5roICxbZXmjzykkY0XKlvBGn2VfEbScM7tegDOZOG07t7pqFDtSGqUzLgII-ejisHEH05wwaKgqc6EGbfamg4HggYU8VbbrkuHKEB_DnWBBAn5HsaStZpwlqLEE5keg8zVXuMioBxeQ8A1K14XMB2nZM3IF0XXWv1l9BHz5lDUXTvv7gdrwOVf1s="},{"source_domain":"usamedicalsupply.com","source_type":"review","title":"The Ultimate, In-Depth Guide to the Harmar Pinnacle SL600 Stairlift","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEHVU3dH-0g8QOvyw0loRMvFfiu7Itfs-CUf3GhxuyA-l4tzJFX-Y6c7QVMFzs1CIxtrGKqr1OeU9cLgi0yl4LIdVuQNKL7zhRHyQYyY3UtUZVVgR6qMJ_D2eJXVn3YqSLhybv4gm7EgKbr53OH9QYq5rqdH9DlciX1TGf-BYZ_C6HlNErMCqxMShHqa2kAK0jRse7EhPrCD2NqSswqEos="}],"confidence":"high","important_limitations":["Straight-staircase use only (not compatible with curves or landings)","Standard seat may feel compact for larger users despite a 350 lb capacity"],"official_website":"https://www.harmar.com","pricing_summary":"$3,000 - $4,800 (including typical basic straight installation)","rank":1,"recommended_product_or_plan":"Pinnacle SL600","strongest_use_case_features":["Industry-narrowest folded profile depth of 10.5 inches","Grease-free, lubricant-free helical worm gear with nylon polymer rack","Symmetrical design allowing installation on either side of the staircase","Narrow rail taking up only 6 inches of stairway width"],"why_it_fits":"It is widely recognized as the slimmest straight stairlift on the market, folding to an industry-leading 10.5 inches from the wall, making it highly compatible with narrow stairways under 30 inches."},{"canonical_name":"Handicare","citations":[{"source_domain":"accesssolutionsinc.com","source_type":"directory","title":"Handicare 1100 Stairlift | Access Solutions, Inc.","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQF-GLUzAgZ4bnHtWJynyzZurf5LUgiCUYM5ZApx8uCkcRqVDY_ZNRyf6J87sD8M-RdvduI7rU3202IIPCTMcNkE4hi-bSOsEFYRVO4l-2QSzWse2-2SUGDXWvBluElRaJm6RsRyvyoPpI-HoruBwEegYfQxN9I="},{"source_domain":"handicareusa.com","source_type":"company","title":"Handicare 1100 - Straight Stairlifts","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEaHqUrlwuYIIwJNO2h91v_cFsNWfbAes8HZbF-rpEiqj8hx-zhWlMurD3LrplDk9ExdLG-Fq_nhWpVkky4-CvXAOgVDYMGIhlZlarBLaZUc3VLp2lc_g71mSBkY3DiiX0_FnomykCl8So8DAeYWqFNN9wkWkhh6sMvX3ZIhH20Rq204Ghmc7aBe-pOpzUfS0XDHS3sbH7bVTJif89bxjpJXD6Vcqw="}],"confidence":"high","important_limitations":["Straight staircases only","Slightly wider folded profile (12.6 in) than the Harmar SL600 (10.5 in)"],"official_website":"https://www.handicareusa.com","pricing_summary":"$2,800 - $4,500 for standard straight installations","rank":2,"recommended_product_or_plan":"Handicare 1100","strongest_use_case_features":["Friction drive system with no exposed grease-covered tooth rack","Four built-in brush heads that automatically sweep the rail clean","Extremely slim rail with minimal 6.3-inch staircase intrusion","Continuous charge function along the entire length of the track"],"why_it_fits":"Features the slimmest straight rail on the market with a track intrusion of only 6.3 inches. Combined with a folded depth of 12.6 inches, it leaves maximum clear walking space on stairs down to 26–27 inches wide."},{"canonical_name":"Access BDD","citations":[{"source_domain":"accesselevator.com","source_type":"directory","title":"Flow X Stair Lift - Access Elevator, Inc.","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHbXWz7DbzqYWB56xQBgijkgg5pL8kuaC1uGGzrbBetuHwlhiBRfdnJ6XBoR0foGJjuZiHc8qpbU-_CmRzw5Tf7_ObqWDT8WkpRPRuMU-2bCrLJ8VQEhazUoZ9WGfTeRZ-S0Hbh"},{"source_domain":"seniorstairlifts.co.uk","source_type":"review","title":"Narrow Stair Lift Guide - Senior Stairlifts","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQG8gg3_ekMhtStiewhTET8p8tkz_Mkg7-Nxn9Y694avlKCul53S0kegzBOoDHMRHMWgK2XrutUMeoTfl2PON7znEfu0A6qtU4BycdEtCRnupvVEGe67kskNRdvnhvWzp7jWGheG3OWbLl56W4AawM8AFJ9R4PbC1Uoo5mUQ3A=="}],"confidence":"high","important_limitations":["Highly custom product with a premium price tag","Folded width (16 inches) is wider than basic straight-rail competitors"],"official_website":"https://www.accessbdd.com","pricing_summary":"$9,500 - $15,000+ (highly variable due to custom-curved rails)","rank":3,"recommended_product_or_plan":"Flow X Curved Stairlift","strongest_use_case_features":["ASL Technology allows travel on staircases down to 24 inches","Armrests and footrest fold together seamlessly to save hallway space","Single-tube rail design that hugs the wall closely","Intuitive armrest joystick that folds completely flat"],"why_it_fits":"Its patented Active Swivel and Levelling (ASL) technology allows the seat to turn while in motion. By rotating the rider's body and knees during travel, the Flow X can safely fit on curved or straight staircases as narrow as 24 inches."},{"canonical_name":"Stannah","citations":[{"source_domain":"mobilitybasics.ca","source_type":"review","title":"Stannah Sadler Stair Lift - Mobility Basics","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGZc6F7TRi7-shxxYJ40RmM8ZU51nYO3flYDWOe-EDpsNM2XKbMLckGdNofznFNa8YTqlavWUSxhHIB93PgEz9jPzEp6jLlllYz4sLzw7Mxi98bE-WqEz5GmC9o2E_9kxEBERfIYX2mNlg="},{"source_domain":"stannah.com","source_type":"company","title":"Compact Standing Stair Lift for Narrow Stairs | The Sadler - Stannah","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGRkkGon3XixyDU__JBeYzMMc3-OQpDIe2sUyTsdQEdyYjwcb8KZZIdm2GgFbuQQomxN2ZfhGpZwwiVf7NYwF-dbvbtYPzNCjSNuPoRvkyzTo97ONCatVIZdPgr1AS0HolTdqcSx87YMMpgTA=="}],"confidence":"high","important_limitations":["Not ideal for users who completely lack the stamina to stand or partially perch","300 lb weight capacity is slightly lower than heavy-duty sit-down models"],"official_website":"https://www.stannah.com","pricing_summary":"$4,000 - $6,000 (Straight) / $10,000+ (Curved config)","rank":4,"recommended_product_or_plan":"Stannah Sadler","strongest_use_case_features":["Perch-style standing chair drastically reduces knee-clearance requirements","Non-slip seat with built-in ridges to ensure rider stability","Auto-folding footrest linked to armrest movement","Sleek rail mounting that sits just 6 inches from the wall"],"why_it_fits":"A unique 'perch' or semi-standing lift designed specifically for people with knee or back pain who cannot fully sit. Because the user rides in an upright posture, their knees project much less, reducing the required width clearance to just 26.5 inches."},{"canonical_name":"Bruno Independent Living Aids","citations":[{"source_domain":"accesssolutionsinc.com","source_type":"directory","title":"Bruno Elan SRE-3050 Straight Stairlift - Access Solutions Inc.","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGmxmKm0A2MmBCP8BIuhAU744nbjnw2X9ldJ8tJ8_Lz-I5km8XmIZo62hhFQl5dT_5GbkjgtfoZkxZaIjuseTkfmTJwe98rpL6w0IhkCgnZ_IkETbT2OSFn6XbVRHKKXtIPSG7ziKwzSrbHspoBvgOc6g=="},{"source_domain":"cornerhomemedical.com","source_type":"directory","title":"ELAN STAIR LIFT - Corner Home Medical","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHMbj1FAZo2AHv1SoZggI37EuoFae7S0_1gso8Gi3CiX7v4qsD_yDNiP66bbyhHP9qU7Edm4h5JZsxpZcg1Lsbix5ISA9ma1d_eoJSqKOp7Art2UmFiD_iKGOsC_rJXvI3TIfuY0uN95w=="}],"confidence":"high","important_limitations":["Straight stairways only (requires their Elite model for curved layouts)","Folded footprint (12 inches) is slightly wider than the Harmar SL600"],"official_website":"https://www.bruno.com","pricing_summary":"$2,800 - $4,200 standard pricing","rank":5,"recommended_product_or_plan":"Elan SRE-3050","strongest_use_case_features":["Vertical rail installs exceptionally close to the wall (within 5 inches)","Offset swivel seat rotates up to 90 degrees and extends away from the top steps","Reliable continuous charge strips along the entire length of the rail","Clean, covered gear rack minimizing dust and dirt collection"],"why_it_fits":"Its ultra-narrow vertical rail installs closer to the wall (within 5 inches) than almost any other standard vertical track, maximizing open step space on narrow staircases (down to 28 inches) so others can walk past safely."},{"canonical_name":"Acorn","citations":[{"source_domain":"acornstairlifts.co.uk","source_type":"company","title":"Straight Stairlift | Acorn 130","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGx3Rbzm8At2PrPZUT1HncEZFAP5zVR1-BLYfDmbs2erFg1HnfT2d-SENYa6XtA2-pI4i8doFJSDFA2dJU0DQis2Vbe-adWwcbmX0GQlMCEpMq_r36U9V_f7R_E0zAogQjsHJ4DJjvwgtw5Cbw="},{"source_domain":"mobilizehorizons.com","source_type":"review","title":"Acorn Stairlift Superglide 130 for Straight Stairs","url":"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEV-rwvi-rEfmj6qojTu2fxAO3n5-N0MTt_8j2MqFzBvGGnReAC60eYDtMOofGeeGs7T-kD3300ONyqNa0LLVYoHL2Gf7__qFBB2Hr0eel35z1J7ELg0nJuRx39mvwq-U4GZpQ17L6xfpkuV5GOJBRoydqENoI8DlI="}],"confidence":"high","important_limitations":["Traditional rack and pinion system has an exposed track that requires periodic cleaning","Swivel at the top requires a minimum width clearance of 26.25 inches"],"official_website":"https://www.acornstairlifts.com","pricing_summary":"$2,500 - $3,500 (known as a highly economical option)","rank":6,"recommended_product_or_plan":"Acorn 130 Straight","strongest_use_case_features":["Slimline folded profile depth of 12.25 inches","Affixes directly to the stair treads rather than the wall","Fast, simple installation layout typically completed in an hour","Optional hinged rail to prevent bottom-of-stairs tripping hazards"],"why_it_fits":"A widely available straight stairlift option that can fit staircases down to 26 inches wide. 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