Stairway Rise and Run

The stairway riser height maximum is 7 and 3/4 inches (196 mm). That is measured vertically between the leading edges of the adjacent treads. The tread depth must be at least 10 inches (254 mm).
The stairway riser height maximum is 7 and 3/4 inches (196 mm). That is measured vertically between the leading edges of the adjacent treads. The tread depth must be at least 10 inches (254 mm).

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