Unless you build stairs daily or several times a year ... risers Divide the height dimension by 7-3⁄4 inches (the maximum riser height allowed by building codes). That will give you a number ...

making sure that stairs with three or more risers also have a handrail on one side of the steps. The maximum height of each riser should be 8 inches, and the depth of the treads should be 10 inches.

stairs. In the national codes the maximum riser height for a step is 7 inches while the minimum tread depth, front to back, is 11 inches; what we call 7/11 stair geometry. Under the Michigan ...

How so? If you lower the allowable stair riser height and widen the tread, the total length of the stair run increases. To accommodate this, a builder may have to increase the size of the house ...