Plywood is made by layering thin sheets of wood veneer on top of one another, with each layer oriented at a right angle to the one below it. This cross-graining pattern gives plywood its strength and stability, as it prevents the panel from warping or splitting. The wood veneer used to make plywood is usually peeled from logs using a rotary lathe, and the plies are then glued together using a strong adhesive.
There are several types of plywood available, including exterior plywood, which is made with moisture-resistant glue and is suitable for outdoor use, and interior plywood, which is made with a standard glue and is suitable for indoor use. It is a popular choice for construction and other applications due to its strength, durability, and versatility.