11B-302.3 Openings

Note: This document or portion of document references a state or local code that aligns with the 2010 ADA Standards requirements.

11B-302.3 Openings.

Openings in floor or ground surfaces shall not allow passage of a sphere more than ½ inch (12.7 mm) diameter except as allowed in Sections 11B-407.4.3, 11B-409.4.3, 11B-410.4, 11B-810.5.3 and 11B-810.10. Elongated openings shall be placed so that the long dimension is perpendicular to the dominant direction of travel.

Advisory 11B-302.3 Openings. Elongated openings, like those of most grates, must be oriented so that the long dimension is perpendicular to the dominant travel direction. In locations where there is no dominant flow pattern, openings should be limited to ½” in both dimensions. Where an accessible route is available to bypass openings completely, they can be oriented in any direction. ◼

Elongated openings, such as in a grating, are shown in plan view with openings 1/2 inch maximum in one dimension. The other dimension is longer (unspecified) and is perpendicular to the dominant direction of travel.

FIGURE 11B-302.3 ELONGATED OPENINGS IN FLOOR OR GROUND SURFACES

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2019 California Standards for Accessible Design Guide (effective January 1, 2020 with July 1, 2021 amendments)

11B-302.3 Openings.

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