A 90-degree corner stair stringer is a type of stair stringer. That is used to support the steps and provide a solid base for stairway construction. It is designed to form a 90-degree turn in the staircase and is typically us. When building a staircase that changes direction, such as a staircase that turns a corner. Here is a step-by-step guide on how to build a 90-degree corner stair stringer.
Step 1: Measure the Stairway
The first step in building a 90-degree corner stair stringer is to measure the stairway and determine the size of the stringer you will need. You will need to measure the height of the staircase, the length of each step, and the width of the stair treads. Make sure to take precise measurements, as any inaccuracies will affect the final outcome of your stairway.
Step 2: Cut the Stringer
Once you have measured the stairway, you will need to cut the stringer to the correct size. You can use a saw or a chop saw to cut the stringer. The stringer should be cut to the same length as the height of the staircase. It should be wide enough to accommodate the width of the stair treads.
Step 3: Mark the Notches
The next step is to mark the notches on the stringer where the stair treads will be attach. To do this, measure the length of each step and mark the stringer at the appropriate intervals. Make sure to mark the notches accurately, as this will affect the height and spacing of the steps.
Step 4: Cut the Notches
Once you have marked the notches on the stringer, you will need to cut them out. You can use a saw or a jigsaw to cut the notches. Make sure to cut the notches accurately and evenly, as this will affect the stability of the steps.
Step 5: Cut the 90-Degree Corner
To form the 90-degree corner in the stringer, you will need to cut a triangular-shaped notch in the stringer. To do this, measure the length of the stringer and mark a line that is perpendicular to the bottom edge. Then, make a second line that is parallel to the bottom edge and intersects the first line at a 90-degree angle. Cut along these lines to form the triangular-shaped notch.
Step 6: Install the Stringer
Once you have cut the notches and formed the 90-degree corner, you are ready to install the stringer. To do this, place the stringer in the appropriate location and secure it to the structure using brackets, screws, or other fasteners. Make sure the stringer is level and plumb, as this will affect the stability of the steps.
Step 7: Attach the Treads
The final step is to attach the stair treads to the notches in the stringer. You can use screws, nails, or other fasteners to attach the treads to the stringer. Make sure the treads are securely attach and level, as this will affect the safety and stability of the steps.
In conclusion, building a 90-degree corner stair stringer is a fairly simple task . That can be accomplished with the right tools and materials. By following these steps, you can build a sturdy and reliable staircase that will last for many years to come. If you are unsure about any aspect of the process. It is recommended that you consult a professional or seek assistance from an experienced carpenter or builder.