Plywood is a type of artificial timber manufactured from thin layers of wood which are bonded together in opposite grain directions, utilising high pressure and temperature. The number of layers is usually uneven, so that the outer layers have the same grain direction. During manufacture it is subjected to special treatment, which makes it resistant to cracking, warping, shrinkage and moisture.

Plywood can be used for interior and exterior applications in shipbuilding, industrial and building construction.