Stair calculator
Residential code compliance · IRC / IBC
Dimensions
Risers
15
Riser height
7.20in
Total run
11.67ft
Treads
14
Angle
37.6°
Stringer
14.73ft
Code compliant
Meets IRC / IBC residential requirements
Code checks
✓Riser height4–7.75in
✓Tread depthmin 10in
✓Stair widthmin 36in
✓Nosing0.75–1.25in
✓Angle25–45°