A push-side door surface on an accessible route has projecting trim near the bottom rail. What minimum smooth-surface height is required on the push side?
Correct Answer
D) 10 in.
Accessible door criteria require a smooth surface on the push side extending at least 10 in. above the floor, with limited exceptions. Other choices are too short or not the listed minimum.
Why This Is the Correct Answer
Accessible door criteria require a smooth surface on the push side extending at least 10 in. above the floor, with limited exceptions. Other choices are too short or not the listed minimum.
Why the Other Options Are Wrong
Option A: 6 in.
Choice A gives 6 in. Its specific error: 6 in. is a different published number than the cited Accessible door smooth surface value; ICC A117.1-2017 Section 404.2.9 smooth surface supports 10 in. The accepted answer is 10 in.
Option B: 8 in.
Choice B (8 in.) is rejected because 8 in. is a different published number than the cited Accessible door smooth surface value; ICC A117.1-2017 Section 404.2.9 smooth surface supports 10 in. The cited answer is 10 in.
Option C: 16 in.
In doors, windows, and glazing, 16 in. is the wrong selection for Accessible door smooth surface: 16 in. is a different published number than the cited Accessible door smooth surface value; ICC A117.1-2017 Section 404.2.9 smooth surface supports 10 in.
Memory Technique
Treat accessible door smooth surface like a labeled shelf; only the matching condition belongs with 10 in.
Reference Hint
Open ICC A117.1-2017 Accessible and Usable Buildings and Facilities; use ICC A117.1-2017 Section 404.2.9 smooth surface to confirm that Accessible door criteria require a smooth surface on the push side extending at least 10 in.
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