By VERNON F. SEARS ( United States Plywood Corporation)
That the post-war period will see great changes in manufactaring techniques, in materials and their uses is beyond question. The materials which from present indications will most surely play a prominent part in these new developments are plywood, plastics, the light metals and, most importantly, a combination of all three.
Plywood, partly because of its sensational performance in the war, has aroused great interest. In airplanes, cargo ships, PT boats and landing barges, in ordnance equipment and in many other military products plywood has demonstrated its strength, its lightness and its adaptability. All indications point to the use of plywood in peace time on a vast scale.
Fortunately, the United States has vast forests to support the manufacture of plywood. The available woods can be divided into three main groups: first, Oregon Fir which grows in the states of Washington, Oregon and Northern California, also Ponderosa and Sugar Pine which grow in Northern California. These two species are produced in great quantities, fir being by far the more important. Second, birch, basswood and maple and other hardwoods which grow in Wisconsin, Michigan and Northern New York. Third, gum, oak and poplar, grown exclusively in the Southern states.