Lever hardware on an accessible door is being laid out before hollow-metal frames are set. What mounting height range applies to operable door hardware?
Correct Answer
D) 34 to 48 in. above the floor
ICC A117.1/ADA door-hardware criteria locate operable door hardware 34 in. minimum and 48 in. maximum above the floor or ground. Other choices shift the accessible reach range too low or too high.
Why This Is the Correct Answer
ICC A117.1/ADA door-hardware criteria locate operable door hardware 34 in. minimum and 48 in. maximum above the floor or ground. Other choices shift the accessible reach range too low or too high.
Why the Other Options Are Wrong
Option A: 30 to 44 in. above the floor
Choice A (30 to 44 in. above the floor) is rejected because 30 to 44 in. above the floor is a different published number than the cited Accessible door hardware height value; ICC A117.1-2017 Section 404.2.6 / 309 operable parts supports 34 to 48 in.
Option B: 32 to 46 in. above the floor
In doors, windows, and glazing, 32 to 46 in. above the floor is the wrong selection for Accessible door hardware height: 32 to 46 in. above the floor is a different published number than the cited Accessible door hardware height value; ICC A117.1-2017 Section 404.2.6 / 309 operable parts supports 34 to 48 in.
Option C: 38 to 54 in. above the floor
The trap in C is 38 to 54 in. above the floor. That selection is wrong because 38 to 54 in. above the floor is a different published number than the cited Accessible door hardware height value; ICC A117.1-2017 Section 404.2.6 / 309 operable parts supports 34 to 48 in.
Memory Technique
Make accessible door hardware height a tabbed card: cite the exact condition, then choose 34 to 48 in. above the floor.
Reference Hint
Open ICC A117.1-2017 Accessible and Usable Buildings and Facilities; use ICC A117.1-2017 Section 404.2.6 / 309 operable parts to confirm that ICC A117.1/ADA door-hardware criteria locate operable door hardware 34 in.
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