Stairlifts: Straight vs. Curved, Types, and What They Cost
A straight stairlift runs $2,000-$8,500 installed because it uses a standard rail. A curved stairlift runs $7,500-$20,000+ because the rail is custom-measured and fabricated for your exact staircase. If your stairs have any turn, landing, or bend, you need a curved model — there's no way around the added cost.
A stairlift removes the single biggest fall risk in a multi-story home: the stairs themselves. The type you need isn’t really a choice — it’s determined by your staircase — but understanding why the price gap is so large helps you budget correctly and avoid being oversold.
How we’re comparing them
We compared straight and curved stairlifts on installed cost, installation time, rail customization, and resale/removal considerations — the factors that matter most when budgeting and planning.
| Criteria | Straight rail | Curved rail |
|---|---|---|
| Typical installed cost | $2,000-$8,500 (avg $3,200-$4,500) | $7,500-$20,000+ |
| Rail | Standard length, cut to fit | Custom-measured and fabricated for your staircase |
| Installation time | Hours to 1 day | 1-2 weeks (measurement + custom fabrication) |
| Fits staircases with turns or landings | No — straight runs only | Yes — built for the exact path |
| Resale value / reuse | Higher — standard rails can sometimes be reused or resold | Lower — custom rail fits only that staircase |
Why curved rails cost so much more
It isn’t the motor or the chair — it’s the rail. A technician laser-measures your staircase, and the rail is CNC-bent at a factory to match it exactly, turn by turn. More bends, a longer staircase, and tighter landings all add fabrication complexity and raise the cost.
What to check before you buy either type
- Weight capacity. Standard models typically support 300-400 lbs; check if a higher-capacity model is needed.
- Battery backup. Most modern stairlifts run on a battery that trickle-charges from the rail, so they still work during a power outage — confirm this on any model you’re considering.
- Swivel seat at the top. A seat that swivels at the top landing lets you exit facing away from the stairs, which is safer than twisting around.
- Outdoor-rated models, if you need a lift for exterior steps rather than an interior staircase — these use weatherproofed components.
Which one you need
There’s no real decision to make here based on preference — it’s determined entirely by your staircase. If it’s a single straight run with no turns or landings, a straight rail lift is the right (and less expensive) choice. If there’s any bend, landing, or curve, you need a curved rail model, and no straight-rail product will work safely on that staircase.
Get at least two quotes for a curved lift specifically, since the custom fabrication means pricing varies more between installers than it does for straight lifts. Pair a stairlift installation with a check of your handrails (opens in a new tab) and stairway lighting — a lift solves the trip up and down, but the same stairs still need to be safely navigable on the (rare) occasions the lift isn’t in use.
Frequently Asked Questions
Does Medicare pay for a stairlift?
Original Medicare classifies stairlifts as a home modification rather than durable medical equipment, so it generally does not cover them. Some Medicare Advantage plans offer limited home-modification benefits — check your specific plan. Medicaid HCBS waivers cover stairlifts in many states; see our financial assistance guides for how to check your state's program.
How long does stairlift installation take?
A straight stairlift can often be installed in a few hours to a day, since it uses a standard rail length cut to fit. A curved stairlift takes longer end-to-end — typically 1-2 weeks from measurement to installation — because the rail has to be custom-fabricated after a technician measures your exact staircase.