Hi All, I'm tasked with the above and am considering: 1. Removing the floor boards and laying & pinning flooring directly on joists 2. Laying plywood, then the flooring. If plywood, what thickness? I have no idea what the state of the joists are like, but lets assume their the usual cack. Any thoughts would be most welcome. Cheers. Nev
Without wishing to add to your workload, if you're removing the existing floorboards it would be silly not to take the opportunity to level all the joists as undoubtedly they'll be miles out. If you lay ply and floor on top you'll have a fair old transition from one room to another as assuming the joists will be 16inch centres I'd use minimum 18mm ply. Personally I'd prefer to put the engineered floor down straight onto the joists, but I'd look to hire a porta nailer and nail through the tongues rather than surface fix, as nail holes will always be on show.