Calculate stair dimensions, riser height, tread depth, and stringer length for safe staircase construction
Enter the total rise and run for your staircase
Total vertical height of the staircase
Total horizontal distance of the staircase
Optimal range: 6-8.5 inches (15-22 cm)
Calculated dimensions and specifications
Enter stair dimensions to see calculations
Click on a scenario to quickly set typical stair dimensions
Rise: 108"
Run: 120"
Riser: 7.5"
Rise: 96"
Run: 108"
Riser: 8"
Rise: 30"
Run: 36"
Riser: 7.5"
Rise: 120"
Run: 100"
Riser: 8.5"
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