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Stair Case Calculator

Design your staircase with precision. Calculate exact number of steps, risers, and the total horizontal run required.

Feet/Inches
Meters/mm

Vertical Rise

Measure from the finished lower floor to the finished upper floor.

Step Dimensions

Standard is 6" to 7" for comfortable climbing.

Standard is 10" to 12" for a safe footbed.

Staircase Expert Tips

1
The Golden Rule (Riser + Tread)

A standard architectural rule of thumb is: (2 x Riser) + Tread should equal between 24 and 25 inches (610-635mm) for a comfortable stride.

2
Riser Count vs Tread Count

Because the top floor acts as the final step, you will always have exactly one less tread than you have risers (Treads = Risers - 1).

3
Headroom

Don't just calculate steps! Make sure you have at least 6 feet 8 inches (2032mm) of vertical clearance above the nosing of every tread to prevent bumping heads.

Enter your floor height to get the exact layout geometry.