Which pair correctly reflects the code requirement for minimum stair tread depth and maximum riser height?

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Multiple Choice

Which pair correctly reflects the code requirement for minimum stair tread depth and maximum riser height?

Explanation:
Stairs must meet code for safe use, with a clear minimum tread depth and a clear maximum riser height. The minimum tread depth is 10 inches, and the maximum riser height is 7-3/4 inches. The pair that matches these exact limits is 10 inches for tread depth and 7-3/4 inches for riser height, which is why it’s the best answer. Other options don’t reflect both limits: they either show a tread shallower than the minimum or a riser taller than the maximum.

Stairs must meet code for safe use, with a clear minimum tread depth and a clear maximum riser height. The minimum tread depth is 10 inches, and the maximum riser height is 7-3/4 inches. The pair that matches these exact limits is 10 inches for tread depth and 7-3/4 inches for riser height, which is why it’s the best answer. Other options don’t reflect both limits: they either show a tread shallower than the minimum or a riser taller than the maximum.

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