StairStringerPro
iOS Universel / Utilitaires
StairStringerPro is a fast, offline stair stringer layout calculator. Enter your total rise and run and instantly get riser height, tread depth, stringer length, angle, and building code validation.
WHAT IT CALCULATES:
Stair Geometry:
- Number of risers and treads
- Individual riser height
- Individual tread depth
- Total run (horizontal distance)
Stringer Layout:
- Stringer length (hypotenuse)
- Stair angle from horizontal
- Stringer stock length needed
- Top and bottom plumb cuts
Code Compliance (IRC R311.7):
- Riser height check (max 7-3/4 in / 196 mm)
- Tread depth check (min 10 in / 254 mm)
- Riser uniformity validation
- Headroom clearance check
- Pass/fail status for each requirement
KEY FEATURES:
- Imperial (in) and Metric (mm) unit support
- Adjustable total rise, run, and tread nose
- Automatic riser/tread optimization
- IRC R311.7 building code validation
- Instant results as you type
- Clean, easy-to-read layout
- Works completely offline
- No account or login required
BUILT FOR THE JOB SITE:
Whether you are a carpenter, deck builder, or general contractor, StairStringerPro gives you accurate stringer dimensions that meet building code. Enter your floor-to-floor height and available run to get a code-compliant stair layout in seconds.
Validates against IRC R311.7 residential stair requirements for riser height, tread depth, and uniformity.
