An interior non-fire-rated swinging door on an accessible route is measured with a door-force gauge. What maximum opening force should be used?
Correct Answer
A) 5 lbf
Accessible door criteria use a 5 lbf maximum opening force for doors other than fire doors and exterior hinged doors where the standard exception applies. Other choices exceed the accessible-door limit.
Why This Is the Correct Answer
Accessible door criteria use a 5 lbf maximum opening force for doors other than fire doors and exterior hinged doors where the standard exception applies. Other choices exceed the accessible-door limit.
Why the Other Options Are Wrong
Option B: 8 lbf
The trap in B is 8 lbf. That selection is wrong because 8 lbf is a different published number than the cited Accessible door opening force value; ICC A117.1-2017 Section 404.2.8 opening force supports 5 lbf; Interior accessible doors are generally limited to 5 lbf opening force.
Option C: 10 lbf
Choice C gives 10 lbf. Its specific error: 10 lbf is a different published number than the cited Accessible door opening force value; ICC A117.1-2017 Section 404.2.8 opening force supports 5 lbf. The accepted answer is 5 lbf.
Option D: 15 lbf
Choice D (15 lbf) is rejected because 15 lbf is a different published number than the cited Accessible door opening force value; ICC A117.1-2017 Section 404.2.8 opening force supports 5 lbf. The cited answer is 5 lbf.
Memory Technique
Link accessible door opening force to its book condition; a different condition means a different answer than 5 lbf.
Reference Hint
Open ICC A117.1-2017 Accessible and Usable Buildings and Facilities; use ICC A117.1-2017 Section 404.2.8 opening force to confirm that Accessible door criteria use a 5 lbf maximum opening force for doors other than fire doors and exterior hinged doors where the standard exception applies.
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