Subject pretty much sez it all. I am putting baseboards into my
basement which is at grade is dry (if not very dry). On the second and
third stories, I've never seen the humidity above 40%.
So I've gone through and stained three sides of the baseboard assuming
the stain is just for cosmetics in this case. Is this a valid
Minwax's can suggests/recommends that I polyurethane the wood now.
Should I polyurethane all four sides or can I leave the backside,
i.e., the side up against the wall, completely untreated?
Am going to be putting baseboard into a ventilated bathroom but am
planning on polyurethaning the back side of those baseboards.