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subfloor

  1. Promaster Builds and Conversions
    Hey everyone! Need some hard truth. Got a 2014 159" WB that I'm finally starting to work on. I took some measures to clean and inspect the floor for any major rust spots before installing the subfloor as recommended (found a quarter-sized spot of rust, sanded it down to bare metal, and sprayed...
  2. Promaster General Discussion Forum
    So I got my floor mostly finished. 1/2 insulation board and 1/2 birch ply. Followed a lot of the advice here. Looks great, fits well. I ran three 4' sheets of ply horizontally to span the 12' space, two have one of the factory tie down bolts, the other (middle) has two. Ran the insulation...
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