Subfloors: Stiff, Flat &Dry
All wood floors have one thing in common: they are only as good as the subfloor beneath them. There are gaps between the boards, and the floors always squeak when you walk on them. The reason? The builder installed the wood flooring over a subfloor consisting of one layer of V2-in. plywood. This subfloor isn't thick enough to hold the flooring nails, so the wood flooring moves constantly. This story is typical. Many flooring problems have more to do with what's...
