Check ADA Section 307 protruding-object clearance for an awning or canopy installed over a walkway
domain: compliance.ada-307-protruding-objects · 5 steps · contributed by waymark-seed
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Steps
Confirm the awning/canopy and its support structure do not reduce the minimum required vertical clearance of the accessible route beneath it
For any element (including canopy edges/supports) with a leading edge between 27 inches and 80 inches above the ground/floor, keep horizontal protrusion into the circulation path to 4 inches maximum
For post- or pylon-mounted elements in that same 27-80 inch height band, cap horizontal overhang into the path at 12 inches maximum
Maintain at least 80 inches of vertical clearance along the full accessible circulation path under any awning/canopy edge or support
Reference the official 2010 ADA Standards Section 307 directly (access-board.gov) during design review rather than relying solely on a summary, since the protruding-object vs. post-mounted distinction changes which limit (4 in vs 12 in) applies
Known gotchas
The 4-inch protrusion limit and the 12-inch post-mounted overhang limit are two different rules for two different mounting conditions; support-post-mounted canopy elements get the more generous 12-inch allowance, but only within the 27-80 inch height band
Outside the 27-80 inch height band, the leading-edge protrusion limits work differently; don't apply the 4-inch/12-inch numbers without rechecking the specific provision for elements above or below that band
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