Pressure-treated plywood is an exterior-grade plywood that will resist rot and decay for a lifetime. it is the preferred flooring material for an outdoor shed.. Osb and plywood are both commonly sold in 4-by-8-foot sheets, but osb can be made in much larger panels, up to 8-by-24 feet. using larger osb panels can be an advantage when flooring a big or odd-size shed, reducing the number of joints in a floor.. The first piece of plywood must be put along the chalk line with the corner of the plywood at the exact corner of where the floor joists meet. each subsequent piece of plywood builds off the first.
Floor lay one 2.4 x 1.2 m sheet of plywood parallel to the joists. ensure that the platform is square by checking the diagonal measure, and that the edges of the plywood sheet align with the outside faces of the perimeter joists. nail the sheet with 60 mm flat-head galvanised nails at 200 mm centres along the line of each joist and around the. No, plywood is mainly used and made to be used for interior purposes whereas, there is a special ply called marine plywood which is made to sustain hard weather conditions and can be used for shed floor. marine plywood is not easily available in market but if you want one, you can get it from the brand duro.. View of floor with plywood/osb deck. support to the edge of the 'sheet' is provided by timber 'noggins' 3.0 plywood shed floor. the comments for plywood are very similar to that for osb in the way that it is installed and fixed. there are many different types of plywood. the one that i have used most commonly is shuttering ply..