Straight vs. curved staircases
A straight staircase with no turns or landings uses a straight rail, which is the most affordable option and is often available quickly, sometimes as a reconditioned unit.
A staircase with bends, landings, or a spiral needs a curved rail that is custom-manufactured to your exact stairs. Curved rails cost more and take longer to produce, so plan for a lead time.
Weight capacity and seat options
Standard stair lifts support around 300 pounds; heavy-duty (bariatric) models support 400 pounds or more with a wider seat. Consider the user’s weight plus a margin, and look at seat width, swivel, and footrest features for comfortable, safe transfers at the top and bottom.
Power: battery vs. AC
Most modern lifts are battery-powered and recharge at charge points along the rail. That means they keep working during a power outage — an important safety feature — and run quietly and smoothly.
New vs. reconditioned, buy vs. rent
Reconditioned straight lifts can save money and are a good fit for short- or medium-term needs. Some Triad providers also rent lifts by the month, which makes sense for a temporary situation such as recovery from surgery.
Curved lifts are almost always purchased new because the rail is custom to your stairs.
- New straight lift — lowest long-term cost if used for years
- Reconditioned straight lift — budget-friendly, faster availability
- Rental — best for temporary needs
- Curved lift — custom rail, buy new
Installation and service
A reputable installer will measure your stairs, confirm the rail does not obstruct the walkway more than necessary, and handle the fitting. Ask about the warranty, the availability of local service technicians, and response times for repairs — a lift is only useful if it can be serviced quickly.