A wheelchair that is too narrow or too wide can cause discomfort. When too narrow, a wheelchair can become restrictive and increase the likelihood of pressure sores, while when it's too wide, becomes more difficult to push due to the angle of the arms from the shoulders to the wheels.

To determine the necessary seat width, measure the rider's widest area of the body and add one inch. This will allow for optimum seat width while maintaining ideal usability, comfort and safety.

Make sure you'll be positioned correctly in your wheelchair and can sit at your desk or kitchen table. Standard tables/counters have a knee clearance of 27 inches.

1. Pneumatic (air-filled) tires provide a softer ride, but need to be kept inflated. Because pneumatic tires are softer than urethane tires, they are harder to push, with more resistance to the shoulders.

2. Pneumatic Flat Free (foam-filled) tires provide a stiffer ride compared to air-filled tires, and will never go flat.

3. Urethane (solid, flat-free) tires provide the quickest and stiffest ride. And they will not go flat.

Tire Tread also affects the wheelchair ride. Tires with very little tread offer a quicker ride and turn more easily because there is less rubber in contact with the ground, causing less friction. "Knobby" tires with deep treads are helpful on unpaved and rougher surfaces, yet offer less maneuverability. A 1 3/8" treaded tire is a good basic tread for everyday use.

2. Elevating Leg Rests are used when better circulation is needed or there is limited mobility in the leg. They raise the foot, straightening the leg. A calf pad is usually included.

3. Fixed Riggings are attached to the wheelchair frame and are not collapsible or removable, but the height of the footplate can be adjusted to the proper fitting.

For optimum comfort and safety, leg rests should provide a proper foundation for the legs and feet. The bottom thigh area should be fully supported by the seat while the soles of the feet are supported by the foot rests.

Discomfort, stress and poor posture can be caused when the legs and feet are left hanging without the support they need or when the foot rests are too high. Poorly fitted leg rests can have a destablizing effect on the chair, making it more difficult to push and navigate due to improper weight distribution.

Removable and fixed footrests are available at different angles depending on the users needs. A lesser angle allows the feet to extend further in front of the wheelchair for people who do not bend well at the knees. It also allows the heels of the feet to avoid the wheels when using larger diameter casters. A higher angle will bring the feet closer to your body and the wheelchair, shortening the overall wheelbase, allowing the wheelchair to turn in tighter spaces.

When armrests are not fitted properly the wheelchair can become more difficult to push. Not all armrests are adjustable. Height should be fitted to allow the forearm to rest fully on the armrest without pushing up on the shoulders. For users who sit at a table or desk, swing-away armrest can beneficial.

There are four basic types of armrests:
1. Full length, fixed height (entire armrest is padded with a non-adjustable height)

2. Full length, adjustable height (entire armrest is padded with various height seetings)

3. Desk length, fixed height (partial armrest is padded for easier access with tables, non-adjustable height)

4. Desk length, adjustable height (partial armrest is padded for easier access with tables, various height seetings)

Armrest that can be easily removed or flip up and down gives users the choice of when to use the armrests.