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ADAAG Manual

Note: This document, portion of document or referenced document was published prior to the 2010 ADA Standards, and all or part of this information may only apply to Safe Harbored elements.

Extensions

Extensions at the top provide support before the first step is made. The bottom extension is especially important in providing this support until one is fully vertical. For extensions to provide this support, they must be in line with the direction of travel on the stairs. Extensions are not required in alterations if they project into cross circulation paths. Extensions must be rounded or returned to the walls, floors, or posts. Requirements for protruding objects in 4.4 limit post-mounted overhangs to 12 inches if the leading edge is higher than 27 inches from the floor.

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