Stair lift cost calculator

Measure the stair before the first quote

Before an installer quotes a dollar figure, the physical staircase determines what track length and chassis configuration can fit the flight. On a straight indoor run with uniform steps, the total vertical rise equals the number of steps multiplied by the rise of one step, and the total horizontal run equals the number of steps multiplied by the tread run of one step. Because the rail mounts on the stair treads parallel to the nosing line, the straight diagonal distance from bottom nosing to top nosing is the square root of the total rise squared plus the total run squared. If the installer’s quote specifies extra track extending onto the top or bottom landing, that landing extension adds directly to the diagonal length:

Total Rise (in) = Steps × Step Rise (in)

Total Run (in) = Steps × Step Run (in)

Straight Rail Length (in) = √(Total Rise² + Total Run²) + Landing Extension (in)

In the default worked example, a straight flight of 14 steps with a 7.5 in step rise and a 10.5 in step run has a total vertical rise of 105 in and a total horizontal run of 147 in. Taking the hypotenuse of 105 in and 147 in yields a straight rail length of 180.65 in, or 15.05 ft, before any landing extension. If an installer specifies a 12 in landing extension beyond the stair nosing, the total rail length increases from 180.65 in to 192.65 in, or 16.05 ft. Checking those numbers against the rail footage written on a dealer’s proposal lets you verify immediately whether two competing quotes are measuring the same straight run or adding different landing extensions.

When you measure your own flight with a tape measure before scheduling an in-home visit, check three separate steps—near the bottom, middle, and top of the flight—to verify that the riser height and tread depth from nosing to nosing are consistent. Hold the tape vertically against the face of the riser from the surface of one tread to the surface of the next tread above it to read the step rise in inches. Then hold the tape horizontally from the front edge (nosing) of one tread to the front edge of the next tread to read the step run in inches. Count every riser from the lower floor surface up to the upper landing surface. If the staircase has a landing with a turn or a pie-shaped winder step, the rail is no longer a single straight diagonal, and the straight diagonal equation above applies only to a single straight run.

Clear width is the second physical gate. You measure the narrowest point along the entire flight—between finished drywall surfaces, wooden baseboard trim, newel posts, handrail brackets, or window sills—rather than the widest open tread. A wooden handrail projecting from the wall or a decorative newel cap at the bottom step often reduces the usable passage below the nominal wall-to-wall stair width. The calculator compares your narrowest clear measurement against two manufacturer figures read on October 19, 2026: Acorn Stairlifts USA states that the straight Acorn 130 requires about 26 in of staircase width and the curved Acorn 180 requires about 27.5 in of staircase width to allow the user to swivel comfortably. At the default 30 in clear width, or at an exact 27.5 in clear width, both models pass; if a handrail bracket or newel post narrows the flight to 25.5 in, the calculator flags that the stair falls below both the 26 in and 27.5 in published minimums so you know to raise the width with the installer before the quote.

User weight is checked in the same pass. Bruno Independent Living Aids publishes a 400 lb lift capacity for the Bruno Elite straight indoor stairlift (read October 19, 2026). A 180 lb user or an exact 400 lb entry passes that published limit, whereas a 420 lb entry is flagged as exceeding the 400 lb figure. Finally, setting the bottom doorway or walkway selector to Yes triggers a layout warning: Acorn Stairlifts USA says an optional hinged rail may be available when the rail would otherwise obstruct a doorway or walkway at the bottom of the stairs, and Bruno lists a folding rail option. Recording your step count, rise, run, narrowest width, user weight, and bottom doorway condition on a single sheet before calling dealers ensures every salesperson is quoting the same physical staircase.

What Medicare and the VA documents say

Rather than paraphrasing eligibility rules or guessing what a funding source might approve, this page reproduces the exact text of the primary federal reference documents read on October 19, 2026, and keeps outside funding strictly separate from the quote totals until you have a confirmed dollar amount in writing.

For Original Medicare Part B, CMS maintains National Coverage Determination NCD 280.1, the Durable Medical Equipment Reference List (read October 19, 2026). In that reference table, the entry for Stairway Elevators is listed as Deny with a cross-reference to the Elevators entry, which reads: Deny - convenience item; not primarily medical in nature (§1861(n) of the Act). Because Original Medicare classifies a stairway elevator under that statutory exclusion rather than as covered durable medical equipment, the calculator does not prefill any Medicare reimbursement or assume any Part B payment toward the purchase or rental of a stair lift.

For the U.S. Department of Veterans Affairs, the Home Improvements and Structural Alterations (HISA) page maintained by the Prosthetic and Sensory Aids Service (read October 19, 2026) contains the explicit exclusion sentence quoted in the box above, which lists removable equipment or appliances such as portable ramps; porch lifts, and stair glides among excluded HISA structural alterations. HISA lists stair glides among excluded removable equipment; this calculator does not evaluate any other program.

Because no outside funding should be counted before a written approval exists, the Confirmed outside funding field in the calculator is blank by default. When you leave it blank, your out-of-pocket total equals the full net quote for each option. When you enter a confirmed dollar amount—such as $1,000 from a written funding approval—the calculator subtracts that $1,000 from each complete option’s net total to show your reduced out-of-pocket cost while leaving the pre-funding quote totals visible above it. If confirmed outside funding exceeds the quote itself, the out-of-pocket figure floors at 0 rather than showing a negative balance. Keeping the unadjusted net total and the post-funding out-of-pocket total on separate rows lets you see both the full contract commitment to the dealer and the portion remaining after your confirmed assistance is applied.

When renting stops being cheaper than buying

When a stair lift is needed for a short recovery period or a temporary living arrangement, renting avoids paying the full purchase price of the unit upfront. However, a stair lift rental is not a pure monthly subscription: a rental quote has a one-time installation fee to mount the rail and carriage, a recurring monthly rental fee for each month the lift stays on the stairs, and a one-time removal fee when the technician returns to unbolt the track. Buying a new or reconditioned lift, by contrast, combines the unit price, the installation charge, and any later removal charge, minus any written buyback amount the dealer commits to pay when taking the unit back.

To compare the three paths on an equal footing over your expected duration of use, the calculator computes the net total for each option only when every line in that option’s column has been filled in:

New or Reconditioned Net Total = Lift Price + Installation + Later Removal − Buyback Offered

Rental Total = Rental Installation Fee + Rental Removal Fee + (Months of Use × Monthly Rate)

Once both a purchase column and the rental column are complete and the monthly rental rate is greater than zero, the calculator solves for the exact break-even horizon in months—the point at which the cumulative rental bill catches up to the net purchase cost:

Break-Even Months = max(0, (Net Purchase Total − Rental Installation Fee − Rental Removal Fee) ÷ Monthly Rental Rate)

Consider the worked 6 month comparison from our test suite (illustrative amounts, not market prices). Suppose a dealer quotes a new lift at $5,000 with installation included (0), later removal at $300, and a $500 buyback offer, while quoting a reconditioned lift at $3,600 with installation included (0), later removal at $300, and 0 buyback, and a rental at a $400 installation fee, $350 per month, and a $200 removal fee. Over a 6 month horizon, the net cost is $4,800 for the new lift ($5,000 + 0 + $300 − $500), $3,900 for the reconditioned lift ($3,600 + 0 + $300 − 0), and $2,700 for the rental ($400 + $200 + 6 × $350). At 6 months, renting is the lowest out-of-pocket option at $2,700.

The break-even row shows how quickly that ranking flips if the lift is needed longer than 6 months. Comparing the $3,900 reconditioned purchase against the rental fees ($400 installation plus $200 removal, then $350 per month) yields a break-even of 9.43 months. Comparing the $4,800 net new lift against those same rental fees ($400 installation plus $200 removal, then $350 per month) yields an exact break-even of 12 months. Before 9.43 months, renting costs less than buying either unit; beyond 9.43 months, the reconditioned purchase costs less than renting; beyond 12 months, even the new lift costs less than continuing to pay $350 a month. Notice also that adding $1,000 of confirmed outside funding lowers the three out-of-pocket totals at 6 months from $4,800, $3,900, and $2,700 down to $3,800, $2,900, and $1,700, while the break-even points remain 12 months and 9.43 months because the same funding applies across each option. In the extreme case where fixed rental installation and removal fees already exceed the net purchase price—for example, a $5,000 rental installation fee plus $200 removal against a $3,900 reconditioned purchase—the break-even is 0 months and buying wins immediately. Testing both your minimum expected duration and a longer duration in the Months of use field shows whether a delay in recovery or home transition would push a rental past the 9.43 month or 12 month crossover.

What one manufacturer publishes as starting prices

The U.S. Census Bureau’s American Housing Survey (AHS) has no stair-lift job type, so it cannot be used as a lift price. Rather than inventing a national market range, the table above reports the published starting figures from a single manufacturer page, Stannah US, read on October 19, 2026.

On that Stannah US pricing page (read October 19, 2026), Stannah lists straight stair lifts starting from $4,700, curved stair lifts starting from $10,800, and outdoor stair lifts starting from $6,300. On the same page (Stannah, read October 19, 2026), Stannah states that reconditioned stair lifts cost around 80% of the price of a new stair lift.

Because the figures in the table come from one manufacturer on October 19, 2026 and represent Stannah's own starting prices, the calculator never prefills them into your worksheet. Always enter the actual numbers from your own written dealer quotes so your comparison reflects the specific equipment, labor, and removal terms offered in your service area.

Read a stair lift quote line by line

Two proposals that show similar headline numbers can leave you with very different net costs once installation, later removal, and buyback terms are separated. A lump-sum quote that writes only a single bottom-line price hides whether the dealer includes professional installation, what happens when the lift is no longer needed, and whether any buyback credit is guaranteed in writing or merely mentioned in conversation.

To prevent a missing fee from looking like a free service, every price input in this calculator distinguishes between a blank field and a zero. Leaving a box blank means the charge is unknown; the calculator withholds the total for that column and lists the exact missing line—such as New lift: installation—so you know what to ask the representative before comparing totals. Entering 0 means the dealer has confirmed that the item carries no separate charge (for example, when installation is bundled into the lift price or when you plan no buyback credit). If one line in the new lift column is left blank while the reconditioned and rental columns are complete, only the new lift total is withheld; the calculator still compares the completed reconditioned and rental columns and identifies the cheaper of the two.

When you review a written proposal or speak with an installer during the staircase survey, ask for five specific disclosures on every option:

• Rail length and landing extension: Ask for the quoted rail length in inches or feet and whether it includes a top or bottom landing extension or a hinged folding section at a doorway. Compare that figure against the diagonal length computed from your step count, rise, and run (for example, 180.65 in or 15.05 ft on a 14-step stair with a 7.5 in rise and 10.5 in run, or 192.65 in / 16.05 ft with a 12 in landing extension).
• Narrowest clearance and weight rating: Confirm that the quoted model’s published minimum width and rated lift capacity match your staircase pinch points and user weight, just as the fit check compares your width and weight against the Acorn 130 (about 26 in), Acorn 180 (about 27.5 in), and Bruno Elite straight indoor (400 lb capacity) figures read on October 19, 2026.
• Installation charge and electrical outlet: Confirm whether installation is included in the equipment price (enter 0) or billed as a separate line item, and whether any electrical work is quoted.
• Removal fee at the end of use: Ask what the company charges to unbolt and remove the rail when the lift is no longer needed. On both purchases and rentals, that removal fee adds directly to the lifecycle cost.
• Written buyback commitment: If a salesperson mentions a buyback program for a new or reconditioned lift, ask whether a minimum dollar credit is guaranteed in the contract and over what time window. Enter a dollar amount in the buyback field only when it is committed in writing; otherwise enter 0 so your break-even calculation does not rely on an unguaranteed resale assumption.

Once you have all four numbers for each purchase option and all three numbers for a rental option written down, enter them into the three columns above. The calculator will display the net cost of each completed column, subtract any confirmed outside funding you entered, and show the exact month at which renting stops being cheaper than buying new or reconditioned equipment. The links in the calculation record at the bottom of the page connect to our stair measuring worksheet for counting treads and risers, our calculation methodology, and our other project cost tools.

Stair lift cost questions

Read the comparison with its boundaries

• Straight stairs only. A curved or outdoor rail is measured by the installer’s survey.
• Fit limits are the published figures of the models in the table; other models have their own.
• No coverage decision: the quotations above are the documents’ own words, and outside funding is only the amount you have confirmed.
• Every price is a quote you enter. The only published prices shown are Stannah’s starting prices, with their date.
• Residential stairs only. No medical, tax or legal advice.