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How to Measure Stair Rise and Run
Step 2 of 6
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Step 2 · Calculate Ideal Riser Height
Divide the total rise (measured in step 1) by a target riser height. Common riser heights range from 7 to 8 inches. For example, if the total rise is 100 inches, dividing by 7.5 inches gives approximately 13.33. Round this number to the nearest whole number to determine the number of risers. In this example, 13 risers would be the target.
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