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Step length

The "riser" is about seven (7) inches. The depth of the step is about seven to eight. There is a formula for calculating the number of steps one should have for a particular height -- 8 foot , 10 foot, and the like.

Stairs are built on a "7-11" risers being approx. 7" and the tread being approx. 11" this gives you the divisable start to your actual seperation.

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