Hi All,

I'm on the tail end of a basement refinishing project and have two
questions:

1. Are pre-finished stair treads (for interior staircase) common and
something I would be able to find easily, or do they typically sell
them as unfinished? I'm looking to avoid the toxic aroma associated
with finishing them in their entirety if it can be avoided.

2. Present plywood treads are glued/nailed to stringers. To remove
could potentially damage the stringer. Is it feasible to overlay the
new tread directly onto the existing plywood tread? I realize it could
skew the height of the top or bottom stair by the thickness of the
tread....

Thanks in advance!!