I am working on a project to replace my stair treads. The current treads show an ugly gap between the end of the tread and the existing skirt board. The current skirt board was installed before the treads, so the treads butt up against the skirt board. The current stairs had carpet on them so the gap didn't matter.
I want to put new treads on these stairs which are finished wood so that there is no visible gap between the end of the stair tread and the wall or skirt board. Can I meet this goal by installing the skirt board over the installed stair treads?
Should the skirt board or the stairs be installed first? Is the skirt board supposed to cover the gap between the tread and the wall?