# Stair Design Calculator

This calculator calculates riser height from total height and number of risers and provides results for slope, rise and run ratio's, total run of the stairs, stringer length and the minimum required floor opening.

#### The Calculation

- enter the total rise from floor to floor
- number of risers you wish to calculate for
- unit run ( length of one run)
- nosing, the amount the stair tread projects passed the vertical riser below
- thickness of floor structure
*(floor finish material plus joist plus plywood plus ceiling finish)* - required headroom, as per building code / or the desired headroom

#### The Results

- the total rise in inches
- the height of one riser
- the slope of the stairs
- sum of ratio
- sum of ratio
- sum of ratio
- the total run of your stairs
- stringer length
- floor opening size

### Framing Calculators

- Plywood or OSB Sheathing Cost Comparing
- Exterior Wall Sheathing + Cost
- Plywood Sheathing # of Sheets for Wall or Floor
- Steel Stud Wall
- Stud Count
- Stud Wall Framing Calculator + Cost
- Sub Floor Material
- Stud Wall Framing Material
- Wall Framing Calculator (mulitple walls)
- Wall Section, Stud and Plate Cost - Metric