2022 California Standards for Accessible Design Guide (effective January 1, 2023)
11B-405.7 Landings.
Ramps shall have landings at the top and the bottom of each ramp run. Landings shall comply with Section 11B-405.7.
11B-405.7.1 Slope.
Landings shall comply with Section 11B-302. Changes in level, slopes exceeding 1:48, and detectable warnings shall not be permitted.
Exception: Reserved.
11B-405.7.2 Width.
The landing clear width shall be at least as wide as the widest ramp run leading to the landing.
11B-405.7.2.1.
Top landings shall be 60 inches (1524 mm) wide minimum.
11B-405.7.3 Length.
The landing clear length shall be 60 inches (1524 mm) long minimum.
11B-405.7.3.1.
Bottom landings shall extend 72 inches (1829 mm) minimum in the direction of ramp run.
11B-405.7.4 Change in direction.
Ramps that change direction between runs at landings shall have a clear landing 60 inches (1525 mm) minimum by 72 inches (1829 mm) minimum in the direction of downward travel from the upper ramp run.
[2010 ADA Standards] 405.7.4 Change in Direction. Ramps that change direction between runs at landings shall have a clear landing 60 inches (1525 mm) minimum by 60 inches (1525 mm) minimum.
11B-405.7.5 Doorways.
Where doorways are located adjacent to a ramp landing, maneuvering clearances required by Sections 11B-404.2.4 and 11B-404.3.2 shall be permitted to overlap the required landing area. Doors, when fully open, shall not reduce the required ramp landing width by more than 3 inches (76 mm). Doors, in any position, shall not reduce the minimum dimension of the ramp landing to less than 42 inches (1067 mm).
[2010 ADA Standards] 405.7.5 Doorways. Where doorways are located adjacent to a ramp landing, maneuvering clearances required by 404.2.4 and 404.3.2 shall be permitted to overlap the required landing area.
ETA Editor's Note
Since the 2010 ADA Standards makes no distinction between top, bottom, and intermediate landings, CBC is more stringent regarding ramp landings. Also, CBC allows less encroachment of doors onto ramp landings.
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