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Guide to the ADA Standards

Non-Circular Cross Section and Clearance

Handrail non-circular cross section (square with rounded corners) with 2 ¼” max. dimension, rounded edges, 4” to 6 ¼” perimeter dimension, 1 ½” clearance behind, and clearance below that is 1 ½” (less 1/8” for each ½” additional perimeter dimension.  Note:  Non-circular cross sections must have rounded edges and meet perimeter and cross-section dimensions.  Other profiles meeting these criteria are permitted.

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Recommendation:  Projecting objects above handrails can impact their usability. Keep wall surfaces above handrails free of any protrusions.


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