Builders have to follow guidelines on the rise and run of stairs when building a staircase. Ratio is a rise of 7.75 in, for a run of 9.75 in. A builder is
![What are the minimum and maximum stair dimensions (rise & run) for the Ladder-Aide? - Ideal Security Inc Knowledge Base What are the minimum and maximum stair dimensions (rise & run) for the Ladder-Aide? - Ideal Security Inc Knowledge Base](https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Stairway_Measurements.svg/2000px-Stairway_Measurements.svg.png)
What are the minimum and maximum stair dimensions (rise & run) for the Ladder-Aide? - Ideal Security Inc Knowledge Base
![Stair Calculator - Calculate stair rise and run | Mobile home steps, Stair layout, Stair rise and run Stair Calculator - Calculate stair rise and run | Mobile home steps, Stair layout, Stair rise and run](https://i.pinimg.com/736x/34/d6/f0/34d6f06efc28adb0967d2908b6396dd2.jpg)