Stair Calculator
Calculate the layout for your stairs, including riser height and tread depth.
Height from lower floor to upper floor
Depth of each step (tread)
Target riser height (Code max ~7.75")
Stair Layout
Number of Steps:
0
Exact Riser Height:
0"
Total Run:
0"
Stringer Length:
0"
Stair Angle:
0°
Stair Building Basics
- Rise: The vertical distance from the top of one tread to the top of the next. Standard code is often max 7.75" (197mm).
- Run: The horizontal depth of the step (minus nosing). Standard minimum is often 10" (254mm).
- Stringer: The structural member that supports the treads and risers.
- Total Rise: Check floor-to-floor height carefully including finished floor thickness.