Also found in: Dictionary, Thesaurus, Legal, Acronyms, Wikipedia.


manufactured board composed of an odd number of thin sheets of wood glued together under pressure with grains of the successive layers at right angles. Laminated wood differs from plywood in that the grains of its sheets are parallel. Plywood is noted for its strength, durability, lightness, rigidity, and resistance to splitting and warping. It can be molded into curved or irregular forms for use in truck, airplane, and boat bodies, luggage, furniture, and tubing, or it can be made into large panels suitable for structural use. Plywood was made in ancient Egypt and China, and it was first introduced in the United States in 1865. The two types commonly in use today are those made of softwood (fir) or hardwood (birch, mahogany, walnut, or white ash). The layers in inexpensive plywood are glued together with starch pastes, animal glues, or casein, but those of the strongest plywood are glued with waterproof synthetic resins. Other material, such as metal or fabric, may be substituted for the usual wood core.


An engineered panel composed of an odd number of thin sheets permanently bonded together, sometimes faced with a veneer. See also: Masonite



a wood material consisting of two or more sheets of debarked veneer glued together. Birch veneer is the type most commonly used in plywood production, but alder, beech, pine, and other types may also be used. Plywood is usually built up with from three to five plies, with the grains in adjacent plies arranged to run perpendicular to each other. Both synthetic thermosetting adhesives, such as phenol-formaldehyde and carbamide (urea-formaldehyde) resins, and natural adhesives, such as albumin and casein glues, are used for bonding. Sheets of plywood range in thickness from 1 to 19 mm; the length and width range from 725 to 2,440 mm.

Among the special types of plywood are those classified as resin-impregnated (with improved water resistance), decorative (with a finished exterior veneer), and shaped (formed in a compression mold). Plywood has fairly high longitudinal and transverse mechanical strength, low overall density, and significantly lower anisotropy than natural wood. Plywoods are used extensively in the production of motor vehicles, railroad cars, ships, aircraft, furniture, and containers; they are also used to make cabinets for radio and television sets.


Kirillov, A. N., and E. I. Karasev. Proizvodstvo kleenoi fanery. Moscow, 1968.



A material composed of thin sheets of wood glued together, with the grains of adjacent sheets oriented at right angles to each other.


Structural wood made of three or more layers of veneer (usually an odd number), joined with glue; usually laid with the grain of adjoining plies at right angles.
References in periodicals archive ?
We will report on the ensuing phases of the Chinese Plywood Trade War.
Three-layer plywood with dimensions of 300 by 300 by 4.
The American Alliance of Hardwood Plywood formed in challenge of the antidumping petition.
Difficulties are faced not only by plywood producers in East Kalimantan but almost in all regions
Many local industries, including logging and plywood manufacturing, were in their heyday.
Plywood does not need certification if it is being used for non-structural purposes.
America is being flooded with imported hardwood plywood that is substandard to what is manufactured here in the United States.
On Monday, Crispi took his plywood flag to Incarnation Catholic School in Glendale, where about 20 boys from Boy Scout Troop 101, Verdugo Hills Council, held a retirement ceremony for other flags.
Perhaps most important of all, it created a relationship between the ad hoc communities on either side of the plywood walls: the collective inhabiting their hermetic factory-cube and the customers waiting like patrons in a Laundromat for their items to be reworked and returned, interacting for a change, rather than experiencing art in parallel silence.
Though the logs grow out of the ground, the plywood made from them is an industrial product.
Other pressed wood products, such as softwood plywood and flake or oriented strandboard, are produced for exterior construction use and contain the dark-colored phenol-formaldehyde (PF) resin.
Representing Atlantic Plywood Corporation was Jim MacDonald, of J.