Riser Adjoining Sloping Public Way, Sidewalk, or Drive

The minimum riser height for stairways at commercial buildings is 4 inches. It may be reduced if the riser abuts a sloping public way, sidewalk, or drive if the maximum cross-slope is 8% across the width of the stair.
The minimum riser height for stairways at commercial buildings is 4 inches. It may be reduced if the riser abuts a sloping public way, sidewalk, or drive if the maximum cross-slope is 8% across the width of the stair.

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