Plywood is called longitudinal, if the fibers in the face layers are directed along the long side, otherwise - the transverse. Plywood made of hard and soft wood is produced in several types and grades, which differ in purpose, service life, appearance and cost.
By designation - construction, industrial, packaging, furniture, and construction. By types of plywood is often divided into two popular types - FK (moisture-resistant) and FSF (high moisture resistance). According to the type of processing - laminated. In appearance (determined by the number of knots per square meter of the surface of the outer layer of veneer): E (elite), I, II, III, IV.