How heaps coats of polyurethane do you recommend to put on a Douglas fir floor? It will be a relatively high-traffic area- living room/play room for kids....
It will be a relatively high-traffic area- living room/play room for kids. We know fir is soft, that's OK, we just want to do as much to prtect as possible without going overkill. Right very soon, we are planning on 5 coats.
Answers: 5 is good. Standard for professional job is usually 2, 3 as an chance. The top line pre-finished floors have 7.
Hope that help.
I did 6 once on a post for my mail box. It came out looking close to it was dipped in chalice. It gets no traffic, but ten years later within the weather it still looks good.