Category
page 1Plywood
plywood
thumb|300px|Softwood plywood made from [[spruce]]
thumb|300px|The principle of making plywood
laminated veneer lumber
engineered wood product that uses multiple layers of thin wood assembled with adhesives
Duramold
right|thumb|The Hughes H-4 Hercules, made of birch ply Duramold
thumb|Samples of Duramold at the Evergreen Aviation & Space Museum
Duramold is a composite material process developed by Virginius E. Clark. Birch or poplar plies are impregnated with phenolic resin and laminated together in a mold under heat (280 °F, 138 °C) and pressure for use as a lightweight structural material. Similar to plywood, Duramold and other lightweight composite materials like the similar Haskelite were considered critical during periods of material shortage in World War II, replacing scarce materials such
Parallam
form of engineered wood