A couple of doors need first aid from dog scratches and robe hooks that pulled loose. Between room doors, closet doors, & bathroom doors I would have to replace 7 doors if I want them to match. They're stained, and not very glossy. I'm looking for a cheap way out, if possible. I considered getting a sheet of luan, but that would be 1/4" thick, adding on to the door, unless I get into major surgery. I thought about skim coating the door with something (not sure what to skim it with) and then painting. That may be worth a try on one, to see how it comes out.