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hardboard:see composition boardcomposition board,
wood product produced in the form of a board or sheet, formed of cellulose fibers or particles derived from wood or other sources, and used principally as a building material.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
A dense smooth-surfaced composition board composed of highly compressed fibers; one such type is called Masonite®. See also: Douglas fir
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
A fiberboard formed to a density of 30-50 pounds per cubic foot (480-800 kilograms per cubic meter) and having one textured and one smooth face.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A building material manufactured of wood fiber compressed into sheets; used extensively in building, e.g., as interior panels or durable siding.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.