Stair lifts are devices that are made to carry people who suffer from arthritis, are older, or are otherwise mobility challenged use the stairs. Using either a set of batteries, or by plugging directly into the wall, these units are responsible for restoring independence and opening houses back up. They are often called stair chairs because generally a chair is attached to the stairs via an aluminum track. There are some models called perch lifts however, that utilize a small platform instead. A perch lift is usually used for someone who has trouble sitting down because of knee or back problems. One popular manufacturer of stair lifts is Acorn, who makes several models including a perch lift.

Acorn is a family owned company that operates worldwide. Their US headquarter is in Orlando, Florida, and they employ over 800 employees worldwide. Acorn opened their doors in 1992 and began buying and selling new and reconditioned stair lifts. They quickly realized, due to high demand, that they would not be able to continue purchasing stair lifts and reselling them, and maintain their commitment to their customers, so they began manufacturing their own. Over the years Acorn pioneered the battery stair lift, and has continuously brought innovation and remarkable engineering to the field. They currently manufacture more than 30,000 units a year. Acorn has a very strong presence in the United States, the United Kingdom, South America, Europe, and Australia. Their quality and professional workmanship has made them into the powerhouse they are today, and they are the largest independent straight stair lift manufacturer in the world.

One of their stair lifts that has a very distinctive design is the Acorn 140. It allows the rider to stand on the foot rest and travel up and down the stairs. For those suffering from joint problems, this is often much less painful and much more practical than a traditional stair lift. It has a set of handle bars attached to the unit that can be held onto for added support, as well as an additional adjustable handle bar. It also includes a pad to lean against, so it is not necessary to stand straight up, and instead the rider can put their weight on the pad.

This perch lift can support up to 294 ponds. It is battery powered, featuring a constantly recharging battery, that ensures that even if the power goes out, you will be able to use your stair lift. The unit includes 15.2 foot of track, which will accommodate most stair cases. The foot rest folds and helps the Acorn Perch Lift retain its low profile. The controls for the Acorn 140 are designed to be very simple and straight forward to use.

Acorn produces several stair lifts and one of their other popular models is the Acorn SuperGlide. All of their models are designed to be easy to use, require very little maintenance, and to be as safe as possible. They all utilize the best materials available, utilize special safety sensors to ensure that the device is not used unsafely, and are designed to take up as little space as possible.