I have a 15x15 room that needs new hardwoood flooring. The old flooring is removed and the subfloor is 1x4s. They are 60 years old and shrunk a bit but generally in good shape. (I will have to replace one or two that were destroyed when the oak floor was removed.
My question, should I attach each subfloor board at each joist? I know with plywood it's a good idea to install extra fasteners to make sure it's stable, but what about plank subfloors?
Thanks, Bernie