Calculate stair dimensions for safe and comfortable stairs, including rise, run, and total stair length.
Start with your values, or try a preset.
Enter Total Rise (Vertical Height), Desired Tread Depth, and Desired Riser Height in the units shown.
Read Number of Risers, Number of Treads, Actual Riser Height, Total Run (Horizontal Length), and Stair Angle in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
Total Rise (Vertical Height): 96 inches; Desired Tread Depth: 11 inches; Desired Riser Height: 7 inches
Number of Risers: 14; Number of Treads: 13; Actual Riser Height: 6.857142857 inches; Total Run (Horizontal Length): 143 inches; Stair Angle: 34 degrees
Total Rise (Vertical Height): 96 inches; Desired Tread Depth: 10 inches; Desired Riser Height: 7.5 inches
Number of Risers: 13; Number of Treads: 12; Actual Riser Height: 7.384615385 inches; Total Run (Horizontal Length): 120 inches; Stair Angle: 39 degrees
Total Rise (Vertical Height): 96 inches; Desired Tread Depth: 12 inches; Desired Riser Height: 6.5 inches
Number of Risers: 15; Number of Treads: 14; Actual Riser Height: 6.4 inches; Total Run (Horizontal Length): 168 inches; Stair Angle: 30 degrees
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