The stair shop drawing shows a commercial egress stair with wood treads. What minimum tread depth does the IBC generally require?
Correct Answer
B) 11 in.
IBC 1011.5.2 generally requires stair tread depth to be at least 11 in. before listed exceptions. Other choices use residential or nonmatching dimensions.
Why This Is the Correct Answer
IBC 1011.5.2 generally requires stair tread depth to be at least 11 in. before listed exceptions. Other choices use residential or nonmatching dimensions.
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