* Plywood is a material manufactured from thin layers or "plies" of
wood veneer that are glued together with adjacent layers having their
wood grain rotated up to 90 degrees to one another.
* It is an engineered wood from the family of manufactured boards which include
medium densitty fiberboard (MDF) and particle board (chipboard).
* All plywoods bind resin and wood fibre sheets to form a composite
material.