Stair Calculator: Stringer
iOS app by Shanghai Sheyuan Network Technology Co., Ltd.. Utilities · Shanghai Sheyuan Network Technology Co., Ltd.
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- 4.99 USD
- In-app purchases
- Unknown
- Version
- 1.0.3
- Listing last refreshed
- 2026-09-12
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Store description excerpt
Building stairs and need code-compliant riser and tread dimensions? Get stringer layout with automatic IRC building code validation before you make a single cut. Stair Calculator: Stringer computes riser height, tread depth, stringer length, stair angle, and validates against IRC R311.7 residential stair requirements. Enter your total rise and available run to get your stringer dimensions with riser and tread checked against IRC limits. WHAT YOU GET: - Individual riser height and tread depth - Number of risers and treads - Stringer hypotenuse length - Stair angle from horizontal IRC R311.7 CODE CHECKS: - Maximum riser height 7-3/4 inches (196mm) - Minimum tread depth 10 inches (254mm) - Pass/fail status for each requirement ADJUSTABLE INPUTS: - Total rise (floor to floor) - Total run (horizontal distance) - Number of steps with stepper control - Instant recalculation on every change WHO NEEDS THIS: - Carpenters framing new staircases - Deck builders planning exterior stairs - General contractors verifying subcontractor work - Building inspectors checking compliance Works completely offline. No account required. Get your stair layout in seconds before you pick up the saw.
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