2022 California Standards for Accessible Design Guide (effective January 1, 2023)
11B-405.9.1 Reserved.
[2010 ADA Standards] 405.9.1 Extended Floor or Ground Surface. The floor or ground surface of the ramp run or landing shall extend 12 inches (305 mm) minimum beyond the inside face of a handrail complying with 505.
[2010 ADA Standards] Advisory 405.9.1 Extended Floor or Ground Surface. The extended surface prevents wheelchair casters and crutch tips from slipping off the ramp surface.
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