Every stair lift is built to carry up to a stated weight. Choosing a model with the right capacity is about more than a number on a label. It affects comfort, safety and how long the lift lasts.
Why the limit matters
- Safety. The motor, brakes and fixings are engineered around the rated load.
- Reliability. A lift working near its limit on every trip wears faster.
- Comfort. Capacity usually goes hand in hand with seat width and the space between the armrests.
Standard and heavy-duty models
Most manufacturers offer a standard lift that suits the majority of riders and a heavy-duty version with a stronger drive, a wider seat and a higher rating. In the Indy range we install, the Pinnacle is the compact standard model and the Indy XL is the heavy-duty option.
How to choose
- Start with the rider’s weight and allow a comfortable margin
- Remember anything carried on the lift, such as a bag or an oxygen unit
- Consider seat width as well as the weight figure
- If two people of different sizes will share the lift, choose for the larger rider
Does a heavy-duty lift need wider stairs?
A wider seat takes a little more room, so the width of the staircase matters. On a very tight stair there can be a trade-off between seat size and clearance. Measuring the stairs is the only way to know.
What about the staircase itself?
The rail is fastened to the treads at several points, spreading the load along the stairs. A sound staircase carries a stair lift without any problem, and the installer checks its condition during the survey.
Ask for the figures
Any reputable installer will tell you the rated capacity and the seat dimensions of each model and help you compare them.
Get the right fit
Nationwide Lifts of New York measures staircases and advises on the right model around Albany, Glens Falls and Poughkeepsie. Call 888-323-8755 for a free home visit.