Stair Rise & Run Calculator

Calculate stair dimensions that comply with building codes. Ensures proper rise, run, and total dimensions for safe and code-compliant stairs. Total Rise (inches): Floor-to-floor height. Standard: 8′ = 96″, 9′ = 108″ Desired Step Rise (inches): IRC: 4″-7.75″, Optimal: 7″-7.75″ Desired Step Run (inches): IRC: ≥ 10″, Optimal: 10″-11″ Stair Width (inches): IRC minimum: 36″, … Read more