Yield of Southern Pine Veneer Suitable for Composite Lumber and Panels. COM-PLY Report 9

摘要

Part of a series on the possibilities of producing house framing and structural panels with particleboard cores and veneer facings (COM - PLY or composite materials), this report describes the dry cubic footage and grades of veneer available from loblolly and slash pines according to diameter and location with the stem. It is directed to potential manufacturers of composite lumber and panels. The report combines data on grade yield from four studies conducted under a research program on timber quality at the Forestry Sciences Laboratory in Athens, Ga. Data from 151 loblolly and slash pines were gathered, and summaries were developed on veneer yields by grade, block number, block diameter, and tree d.b.h. Results indicate that trees 16 inches d.b.h. and smaller yield a high proportion of the grade C and better veneer required for COM - PLY products. Over 90 percent of such veneer is cut from the lower 26 feet of the stem. A typical stand of southern pine will yield more than enough suitable veneer so that over 90 percent of the total stand volume can be used in making composite products. Photographs, tabular data, illustrations, two footnotes, and four references are supplied. An appendix presents data on the veneer yields by grade for loblolly and slash pines.