Mark and Cut Stair Stringers — Select and Cut Stringers
Part of project
How to Build a Small Set of Porch Steps · Step 2 of 7
In this video
Place the 2x12 lumber (e.g., pressure-treated Douglas fir) on saw horses. Using the custom-made stringer jig, align the jig's stop against the edge of the 2x12. Mark the first step's rise and run using the jig. Slide the jig down, aligning the previously marked run with the jig's rise, and repeat the marking process for all subsequent steps. Ensure the bottom step is shortened by the thickness of one tread to account for the first tread resting directly on the concrete landing. Mark the top and bottom angles according to the stringer calculations. Once all steps and angles are marked, use a circular saw to cut along the lines. For the inner corners where the circular saw blade cannot reach, use a Japanese flush-cut pull saw to finish the cuts, creating sharp, clean corners. This process should be repeated for all stringers (e.g., three for a 36-inch wide stair, spaced 16 inches on center).
Mark and Cut Stair Stringers — Select and Cut Stringers
Part of project
How to Build a Small Set of Porch Steps · Step 2 of 7
In this video
Place the 2x12 lumber (e.g., pressure-treated Douglas fir) on saw horses. Using the custom-made stringer jig, align the jig's stop against the edge of the 2x12. Mark the first step's rise and run using the jig. Slide the jig down, aligning the previously marked run with the jig's rise, and repeat the marking process for all subsequent steps. Ensure the bottom step is shortened by the thickness of one tread to account for the first tread resting directly on the concrete landing. Mark the top and bottom angles according to the stringer calculations. Once all steps and angles are marked, use a circular saw to cut along the lines. For the inner corners where the circular saw blade cannot reach, use a Japanese flush-cut pull saw to finish the cuts, creating sharp, clean corners. This process should be repeated for all stringers (e.g., three for a 36-inch wide stair, spaced 16 inches on center).