We have a 1920's house with some 1/2" X 6" planks. Unfortunately the floor is in quite rough shape with finger wide gaps in some spots, I started to attempt to sand and flatten it but I think it will be too much work. That said, would the proper course of action be to put down some 1/2" subflooring (particle board or plywood tongue and groove) first. Screw it down then lay the laminate over top? If not what would be the correct thing to
As long as your floor is "flat" then you really need to follow the install advice for the type of laminate you are installing. Some laminates require nothing, some a pad.
If your floor has a lot of damage and bumps then you probably want to patch it with a compound like floor leveler. You don't want to have large potmarks (anything greater than an inch) in your floor and leave it thinking the pad and laminate will cover it.
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