Our Baltic Birch Plywood Sheets are virtually indestructible. We do not use the lower grade Chinese wood. We insist on providing a high quality product. The plywood sheets are 9 mm. thick in 5’x5’ sheets. Each of the sheets have a low moisture content and low formaldehyde class emission. Used in the construction of our flooring systems, Individual Baltic Birch Plywood Sheets can be purchased for replacing damaged flooring or for your spring floor kits.