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A stair calculator determines the optimal number of steps, riser height, and tread depth for a given floor-to-floor height. Building codes specify maximum riser height (7.75" in the US) and minimum tread depth (10") to ensure safe, comfortable stairs.

Hướng dẫn từng bước

1. 1Measure total rise: the vertical distance from one floor to the next
2. 2Divide by ideal riser height (~7.5") to find number of steps
3. 3Round to nearest whole number and recalculate exact riser height
4. 4Use Blondel formula: 2R + T = 24–25" (R=riser, T=tread) for comfort

Ví dụ có lời giải