Is there an easier/smarter way?
I'm replacing the carpet on my entry stairs with solid cherry hardwood. The stairs (built in 1970) are made out of 2x6, they are glued, screwed, solid and have no squeaks. But they are not square to the wall. I'm adding what I think is called a skirt board on both sides of the stairway, one is built just like a stringer (saw tooth) and attached below the ends if the treads and risers on one end with no problem.
The other skirt board, on the opposite end, is attaching to existing drywall and has saw tooth cut outs (upside down stringers) to accommodate the steps. When dry fitting the treads against the skirt board there is an uneven gap between the end of the tread and the face of the skirt board on every step, it varies between 1/16" and 1/8" depending on which step you are looking at. Shimming behind the skirt board doesn't solve the problem. What I'm thinking is that I have to scribe each tread to butt flush against the shirt board. There are 13 steps to do.
My plan is to scribe each tread to butt flush against the skirt board, attach each riser and stringer together with glue and finishing nails (from the back side) so each tread & riser is a right angle assembly and then screw the assembly to the 2x6 frame and plug the screw holes. Not only is that a lot of scribing/fitting, but I'm also concerned that I won't be able to completely close the gap between the assembly (riser and stringer) and the skirt board in every case because of the out of square wall.
My question is, is there an easier/smarter way?