A stairlift is a motorized seat that runs up and down a staircase on a track / rail. They come in three main variants:

  1. The most common seated stairlifts
  2. Perching / standing stairlift
  3. Models with a wheelchair platform

Stairlifts are available for both curved and straight staircases, straight stairlifts are cheaper than curved ones.

Stair lifts are also known as 'stair elevators', 'inclinators' 'stair chairs', 'staircase lifts' and 'stairway lifts'.