A log of wood is softened with steam and then reduced it into thin veneers (also referred to as plies). The thin veneers are allowed to dry and then coated with an adhesive. Each ply is laid in such a way that the grain direction of each ply is opposite to the ones above and below it. There are usually an big number of plies so that the sheet is balanced. The entire stack is then treated in a hot press at high temperature and pressure to form plywood. Plywood is resistant to cracking, shrinkage, splitting, twisting/warping and has a high degree of strength. Pound for pound, plywood is stronger than steel in static bending strength.
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