This tool helps you calculate the dimensions and materials needed to build a safe and functional staircase.

## How to Use the Stair Design Calculator

Follow the steps below to use the stair design calculator:

- Input the Stair Run in inches.
- Input the Stair Rise in inches.
- Input the Stair Width in inches.
- Input the Floor Height in inches.
- Click the Calculate button to get the Total Number of Steps, Tread Depth, and Riser Height.

## How It Calculates the Results

This calculator takes the floor height and divides it by the rise to determine the number of steps. It then uses the run to calculate the depth of each tread. Finally, it calculates the width based on the input parameter. Specifically:

- Total Number of Steps = Floor Height / Stair Rise
- Riser Height = Floor Height / Total Number of Steps
- Tread Depth = Stair Run / Total Number of Steps

## Limitations

This calculator assumes equal risers and treads for all steps. Any deviations due to construction constraints are not considered in this calculator. It is recommended to consult a professional for complex designs.

## Use Cases for This Calculator

### Calculate Number of Steps

Enter the height of your staircase and the riser height you desire. The calculator will determine the total number of steps needed based on the input values.

### Calculate Riser Height

Want to know the ideal riser height for your staircase design? Input the height of the staircase and the desired number of steps; the calculator will give you the optimal riser height.

### Calculate Tread Depth

Input the total run of your staircase and the number of steps required. Our calculator will provide you with the recommended tread depth for safe and comfortable steps.

### Calculate Total Run

By entering the number of steps and the tread depth you prefer, you can find out the total horizontal distance needed for your staircase run.

### Calculate Total Staircase Height

Input the number of steps and riser height to determine the overall height of your staircase. This calculation helps you plan the vertical space required for the stairs.

### Calculate Riser and Tread Ratio

If you input the riser height and tread depth, our calculator will provide you with the ratio between the two elements, assisting you in achieving optimal stair design.

### Calculate Maximum Step Height

By entering the recommended minimum and maximum tread depths, the calculator will determine the maximum height for each step, keeping your staircase safe and comfortable to use.

### Calculate Minimum Headroom Clearance

Input the height of the staircase and the headroom clearance requirement. The calculator will give you the minimum vertical space needed above the stairs for a safe and compliant design.

### Calculate Stair Angle

Provide the total rise and run of your staircase, and our calculator will determine the angle of the stairs, aiding you in visualizing the design and construction requirements.

### Calculate Material Quantities

Input the dimensions of your steps and the total number required to calculate the amount of material, like wood or tile, needed for your staircase construction project.