How to Trace and Cut Stair Stringer Boards
Learning how to build stairs and specially design them for your outdoor area's specific height and angle is a great skill to learn and keep on-hand for years to come! To find out how to calculate and plan your stair stringer boards exactly as you need, check out the Decks 101: How to Make Stair Stringer Boards post!
With your deck measurements in hand, now you're ready to set the lumber down and cut your deck stringer boards to size! Here is the step by step process for how to cut stair stringer boards including some deck professional tips:
- Always use straight, pressure-treated 2x12s when creating stringer boards.
- Set two saw horses in position and put on your safety glasses.
- Use a speed or framing square and clamps to apply and trace your stair dimensions onto the lumber. Attach one clamp to the square at the set riser height. Then, attach another clamp to the tread depth.
Don't have your step dimensions and count yet? Check out the How to Calculate Stair Stringers post to find it fast! - Position the framing square aligned to the edge of stringer, you will be able to find the exact layout to cut your stairs.
- Take a carpenter's pencil to trace the dimensions of each stair repeated along the stringer.
- Adjust the bottom step as needed per your deck staircase layout and stair landing plan.
- Use a circular saw or jigsaw to create the cuts on your stringer board. Be sure not to overcut your guidelines as it can weaken the structure of the board.
- Use a handsaw to clean and polish the cut corners.
- With one stringer board traced, cut and polished; use it as a template for your remaining 2 or 3 boards!
With stair stringer boards cut and prepped for your exact outdoor stair dimensions, you're ready to mount your stringer boards and attach your pressure-treated decking, hardwood, or composite deck boards! Find out the next steps to complete your dream deck staircase in the Decks 101: How to Build Stairs post! We'll walk through installing and attaching the last parts of your deck stairs and steps in a quick, easy process.
Give your deck, porch, or balcony staircase a secure and finishing touch by installing a strong metal deck railing or composite railing system to help family and guests feel safe while ascending or descending the stairs. Another great addition would be LED stair lighting to add a touch of style and safety to your outdoor living space. Choose from compact and bright recessed stair lighting or a more encompassing under tread lighting.