- Extra Wide.Where strength and durability really count, there’s no better choice than this extra wide Self-Propelled Heavy Duty Wheelchair.This high quality wheelchair features a double crossbar, double-reinforced upholstery and a chrome plated steel frame. However, the extra strength doesn’t come at the expense of comfort or convenience. The chair has moulded armrests, detachable, swing-away footrests and adjustable legrests, and an extended 56cm wide seat for added comfort. It also features detachable armrests and an easy folding mechanism, which make for trouble-free storage and transport.