The playing court shall be a rectangular surface free from obstructions and with minimum dimensions of 84 feet (25.60 m) in length and 50 feet (15.24 m) in width.
The wheelchair used in tournament and league competition is considered part of the player; therefore, general rules of contact apply. The height of the seat rail may not exceed 21 inches from the floor. Measurement must be made from ground or court to the top of the seat rail bar (highest point) with player in the chair. The height of the foot platform (or first point of contact) must be no more than 4-7/8 inches from the floor.
Seat cushions are permitted for medical and therapeutic reasons; however, the thickness of the cushion allowed varies among classes. Pneumatic cushions and contoured cushions are permissible, providing they are commercially manufactured for therapeutic use and do not exceed thickness restrictions.
Each chair must be equipped with a roll bar or other protective device to ensure against damage to the playing surface. That part of the footrest or roll bar that projects forward the furthest and which would be the first point of contact with another wheelchair in head-on contact must be at a height of not more than 5 inches from the ground or court.
The footrest must have rounded or smooth corners. Door bumpers, knobs, projections of folding footrests, or other projection from the body of the footrest, which may readily become entangled in the wheels and/or spokes of another chair, or used to hook and/or hold an opponent, shall not be allowed.
Any chair equipped with either a horizontal bar behind the backrest or push handles extending to the rear, must have these areas sufficiently padded so as to prevent injury to another player.
A chair is permitted to have anti-tip casters (also known as a fifth-wheel) attached to the underside or rear of the chair. The lowest point of the anti-tip caster cannot exceed 1 inch from the floor nor can any part of the anti-tip caster project from the chair rearward so that it would extend past any part of the rear wheels.
For more information on wheelchair basketball court and equipment regulations, go to:http://www.nwba.org