Stair Calculator

Use this calculator tool to check your measurements

Input:

Decimal Fractional
Tread Rise [D]
(in) [ Ex: 7.25 or 8 or 8.5 ]
Number of Rises [H]
[ Ex: 7 or 10 or 15 ]
Tread Run [C]
(in) [ Ex: 10.5 or 10 or 10.25 ]
Tread Thickness [E]
(in) [ Ex: 1.25 or 1.5 or 2 ]
Nose Projection [I]
(in) [ Ex: 1.75 or 2 or 2.5 ]
Tread Rise [D]
/ [ Ex: 7 1/4 or 8 or 8 1/2 ]
Number of Rises [H]
[ Ex: 7 or 10 or 15 ]
Tread Run [C]
/ [ Ex: 10 1/4 or 10 or 10 1/2 ]
Tread Thickness [E]
/ [ Ex: 1 1/4 or 2 or 2 1/2 ]
Nose Projection [I]
/ [ Ex: 1 1/4 or 2 or 2 1/2 ]
Stringer Mount Type:
Standard Flush

Stair Results:

Decimal

Total Rise [A] (in)
Total Run [B] (in)

Stair Results:

Fractional

Total Rise [A]
Total Run [B]
Pitch or Angle (degrees)
Typical Stringer
Typical Stringer

Instructions