ABA Accessibility Standard for GSA Facilities Pocket Guide

1009.4.1 Clear Deck Space.

A clear deck space of 60 inches (1525 mm) minimum by 60 inches (1525 mm) minimum with a slope not steeper than 1:48 shall be provided at the base of the transfer wall. Where one grab bar is provided, the clear deck space shall be centered on the grab bar. Where two grab bars are provided, the clear deck space shall be centered on the clearance between the grab bars.

Figure 1009.4.1 Clear Deck Space at Transfer Walls