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Last edited 28 May 2019
A stairlift is a mechanical lifting device commonly used in dwellings to lift people up and down staircases. It is sometimes referred to as a chairlift or stair glider. Stairlifts are typically are used by people with restricted mobility who are unable to safely navigate stairs without assistance.
Stairlifts were first commercially produced in the USA in the 1930s, although there is evidence to suggest that an early incarnation of a chair being pulled up and down stairs dates back to King Henry VIII, who used one when recovering from a jousting accident.
Stairlifts are predominantly used indoors, although outdoor versions can sometimes be found on steps leading up to front or back doors. These differ in that they use weatherproof fabrics and durable parts that can be left exposed to the elements.
The most common type of stairlift involves a straight rail that runs up a domestic staircase. The rail is usually made from extruded aluminium or steel. The rails come in various cross-sections and, depending on their length, can weigh more than 30 kg. The rails are attached to the stair risers with metal brackets.
The carriages usually consist of a seat with arms and a footrest, although they can be adapted to suit the requirements of the user. Some carriages can consist of a platform without a seat base, which requires the user to stand/perch rather than sit.
The carriages are conventionally positioned at right angles to the rail, so the user travels ‘sidesaddle’ up and down the stairs. At the top, the seat swivels, through 45 or 90-degrees, allowing the user to disembark. The swivel action can be either manual or powered, depending on the requirements of the user.
The first piece to be installed is the lower track which is laid along the length of the stairs. It is important to ensure that the track is laid evenly to prevent the carriage becoming stuck partway. Brackets are attached with screws to maintain the even level of the track.
The upper track is then aligned above the lower track. The carriage seat base is placed between upper and lower track, and the second set of brackets is screw-fastened.
The chain and pulley mechanism is installed by feeding the chain through the track, half on the left and half on the right, along with the power cable for the carriage, which should move in conjunction with it.
The seat must then be assembled according to the size requirements of the user, with adjustments made after testing if necessary. The power cable is plugged into the end of the track and the electrical power supply.
 Related articles on Designing Buildings Wiki
- Access and inclusion in the built environment: policy and guidance.
- Accessibility in the built environment.
- Disabled access lifts.
- Lifting device.
- Non-discriminatory building design.
- Older people.
- People with disabilities.
- Wheelchair platform stairlifts.
- Wheelchair user.
- Width of doors stairs and escape routes.
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