Stair Tread Calculator

The Stair Tread Calculator is useful for determining the optimal number of steps and total run for a staircase based on the total height and desired tread depth.

Stair Tread Calculation Details

1. Number of Steps: Calculated by dividing the total stair height by an assumed average rise of 7.5 inches per step.
2. Total Run: Calculated as the number of steps multiplied by the desired tread depth.

Example Calculation

If the total stair height is 90 inches and the tread depth is 10 inches:

• Number of Steps: \( \frac{90}{7.5} = 12 \)
• Total Run: \( 12 \times 10 = 120 \) inches

Importance and Usage

This calculator is ideal for anyone designing or building a staircase, helping to ensure both comfort and safety by aligning step rise and run to standard guidelines.

Common FAQs

1. What is a typical stair rise?

   • The standard rise per step is usually around 7 to 7.5 inches.

2. Why is tread depth important?

   • Tread depth ensures a comfortable and safe foot placement when ascending or descending stairs.

3. Can this be used for different building codes?

   • Always check local building codes as they may have specific requirements for stair dimensions.