Hi, I'm about to install laminate over an old hardwood floor (the old floor looks like crap, has way too many gaps and squeaks/creaks too much to refinish). How should I prep the old floor - do I need to sand it to make flat, use screws to get rid of the squeaks? Anything else I should do?
Or should I remove it and put down plywood?
Or should I remove it and put down plywood?