How can we help you? How much weight can a stair lift hold? 0 out of 2 found this helpful We have a variety of stair lifts available that can support weights up to 600 lbs. Was this helpful? Yes (0) No (1) Category: General Related Questions Are stair lifts expensive? How long does the installation take? Is a stair lift difficult to operate? How do I move forward with my stair lift inquiry?