关于本计算器
Stair step count, actual riser height and total run from floor-to-floor height.
按高度算台阶与踏步。
Stair step count, actual riser height and total run from floor-to-floor height.
Ceil of height ÷ target riser; actual riser divides evenly.
Around 7–7.75 in (17–20 cm) with ~10–11 in treads.
Tread depth times step count.