high-density plywood
high-density plywood
Plywood made from resin-impregnated veneer and formed with heat at pressures of 500 lb per sq in. (35 kg per sq m) or more; usually density is at least twice that of normal plywood; is difficult to work with ordinary hand tools because of its extreme hardness.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.