The original engineered wood, plywood consists of veneers arranged in perpendicular layers. The layers consist of veneer plies laminated with the grain running in the same direction. There are always an odd number of layers, with the grain of the face layers typically oriented parallel to the long dimension of the panel. It is the cross-laminated lay-up of veneer that gives plywood its excellent strength, stiffness and dimensional stability. In addition to a variety of sheathing, siding, sanded and concrete form grades, many manufacturers can produce custom lay-ups for specialized applications.
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