Plywood is ideal for applications in residential and light-duty construction and is made from thin sheets of veneer that have been peeled from debarked wood. These thin layers, also called plies, are glued together in alternating, perpendicular directions to create a cross-graining pattern. This pattern results in added strength and stability that resists shrinkage and expansion, should it come in contact with moisture.
Plywood is an engineered wood from the manufactured boards family, which also includes particle board and oriented strand board (OSB). The types of wood species that are used in engineered plywood include ash, oak, birch, maple, cedar, spruce and pine.
This guide will walk you through the different uses of plywood, as well as explain its rating and grade system.