I'm wanting to put wood floors in and I've noticed that not all allow you to float them. Some have to be glued or nailed? They look the same to me. This is going in over concrete. But why don't all work for floating floors? Whats the diff?
I would imagine is has to do with expansion and contraction properties of the different types of hardwoods.
If they are floating floors, they need to lock together. Nail down type flooring is simply tongue and groove, it will come apart if left floating.
