# Deck Stairs Calculator

Building stairs for your deck is often considered “the most difficult part of” the construction project. Having the right calculations before getting started can make the task a lot easier.

To simplify the process, we’ve created this deck stair calculator to help you determine the correct measurements needed to carry out your project. Once you’ve calculated the number of steps, you’ll then need to know how to build stairs for your deck.

**This calculator will tell you:**

- How Many Rises You'll Need
- Dimensions for each rise
- Total run and rise

- Step run (tread depth)
- step rise (riser height)
- bottom step rise

- angle of your staircase
- stringer length

- How Many Rises You'll Need
- Dimensions for each rise
- Total run and rise
- Step run (tread depth)

- step rise (riser height)
- bottom step rise
- angle of your staircase
- stringer length

Building stairs for your deck is often considered “the most difficult part of” the construction project. Having the right calculations before getting started can make the task a lot easier.

To simplify the process, we’ve created this deck stair calculator to help you determine the correct measurements needed to carry out your project.