Stair Lifts
Straight vs Curved Stair Lifts
Your staircase decides this, not your budget — but there are ways to avoid a custom rail.
- A straight rail is stock extrusion cut to length; a curved rail is manufactured for one specific staircase.
- Straight lifts typically cost $2,800–$6,000 installed; curved lifts $9,000–$16,000.
- Curved rails take four to eight weeks to fabricate; straight rails are often installed within a week.
- Two straight lifts with a transfer at a landing can beat one curved rail on price.
How to tell which one you need
If the staircase runs in one unbroken line from bottom to top with no turn, landing, or curve, you need a straight rail. Anything else — a quarter turn, a half turn, a landing partway up, or even a flare in the bottom step — puts you in curved territory.
One exception is worth asking about: a staircase with a full landing can sometimes take two independent straight rails, one below the landing and one above, with the rider transferring between them.
- Unbroken run with no turns: straight rail
- Any turn, curve, or intermediate landing: curved rail
- Full landing with room to stand: ask about two straight rails
Why curved costs so much more
The rail for a curved lift is measured with a photo or laser survey, then bent, welded, and finished in a factory to match your stairs. That is custom manufacturing with a lead time, and it is most of the price difference.
It also means a curved rail has essentially no resale value. Budget the full cost as consumed, not as an asset you can recover later.
Frequently asked questions
Can a straight stair lift be used on curved stairs?
No. The rail must follow the path of travel. A straight rail on a curved staircase would leave the rider stranded away from the steps.
Keep reading
Marcus Thorne
Senior Editor, Mobility Equipment
Marcus covers stair lifts, home elevators, and platform lifts for Home Access Advisor. He spent eleven years estimating residential remodels before moving into consumer publishing, and he reads dealer quotes for a living — which is why most of his guides start with the line items other sites leave out.
Covers: Stair lifts · Residential elevators · Installation pricing · Dealer quotes
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