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1991 ADA Standards for Accessible Design

Note: This document, portion of document or referenced document was published prior to the 2010 ADA Standards, and is still applicable.

A4.2.4 Clear Floor or Ground Space for Wheelchairs.

The wheelchair and user shown in Fig. A3 represent typical dimensions for a large adult male. The space requirements in this guideline are based upon maneuvering clearances that will accommodate most wheelchairs. Fig. A3 provides a uniform reference for design not covered by this guideline.

The height of the handle is at 36 inches (915 mm). The armrest is 30 inches (760 mm) high. Eye level is between 43 and 51 inches (1090-1295 mm). The lap is at 27 inches (685 mm). The seat is at 19 inches (485 mm). The toe is at 8 inches (205 mm). The width of a wheelchair measured from the outer edges of the back wheels is 26 inches (660 mm), the length is 42 inches (1065 mm), the width measured from the outer edges of the footrests is 18 inches (455 mm). The toes extends 6 inches (150 mm) beyond the edge of the footrests.

Fig. A3 Dimensions of Adult-Sized Wheelchairs

Plan view showing dimensions of adult-sized wheelchairs

Fig. A3 (a)


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