Plywood Floor Gap Filler
If the gaps in your wood floor are smaller and more cosmetic a prefabricated wood filler or a wood dust and wood flour cement mix would be good options.
Plywood floor gap filler. Probably because this part of the house is in the 100 yr floor plain. Natural latex wood filler dap plastic wood all purpose wood filler dap plastic wood all purpose wood filler is a high quality latex based wood filler that looks and acts like real wood. If you have wide gaps in a wide plank wood floor using natural rope as a filler is a relatively easy and inexpensive option. Subfloor materials including plywood oriented strand board and to a lesser degree particleboard are fairly stable and any gaps that might develop between sheets are unlikely to widen.
The next layer of filler to go down before the vinyl flooring is 1 4 inch birch plywood. For best results use fine edger dust from the floor that is being sanded mix it with lacquer to form a putty and fill the floor as needed. This filler is fast drying gives off a lot of strong fumes and is flammable. My shop has 3 4 pt plywood for floor.
While it s best to fill any voids prior to attaching pieces of plywood together you can fill voids between plywood sheets with wood filler. Birch plywood is extremely smooth with no surface voids visible grain or high sections. Wood filler can be used to fill gaps up to an inch wide and an inch deep. For whatever reason the contractor left gaps between each piece 1 8 to 1 4 wide.
Lacquer based wood floor filler is a mixture of lacquer and very fine wood dust. For this stunning diy finish fill and smooth gaps in the plywood subfloor with fast setting drywall compound and a trowel. Inject the filler into the gap and fill the void until the filler is flush with the surface of the wood. It can be used to repair cracks gouges holes and other surface defects on furniture woodwork molding cabinets paneling plywood windows doors and painted surfaces.
Wallpaper as floor paper. Step 1 sand the surface of the plywood with 80 grit sandpaper. For that reason any subfloor filler you use does not have to be particularly elastic.