According to Nevada building codes, what is the maximum riser height for stairs in residential construction?
Correct Answer
A) 7¾ inches
Nevada residential building codes limit stair risers to a maximum height of 7¾ inches.
Why This Is the Correct Answer
The IRC, adopted by Nevada for residential construction, sets the maximum stair riser height at 7¾ inches. This limit ensures safe, comfortable stair climbing and is a specific code dimension candidates must memorize.
Why the Other Options Are Wrong
Option B: 8 inches
8 inches is above the IRC residential maximum of 7¾ inches. A riser of 8 inches would be code-violating in Nevada residential construction.
Option C: 7¼ inches
7¼ inches is below the maximum — stairs with 7¼-inch risers would be legal, but it is not the code maximum. The question asks for the maximum allowable, which is 7¾ inches.
Option D: 8¼ inches
8¼ inches significantly exceeds the IRC limit. Risers this tall are unsafe and clearly prohibited under Nevada residential code.
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