This study consists of an evaluation of economic efficiency in the
particleboard industry of Oregon between 1958 and 1970. Measures of
efficiency included aggregate capital and labor use in the production
process, relative economies of scale, and relative technological
efficiencies of individual particleboard plants.
The rapid growth of the industry...
Joints were fabricated from different combinations of untreated and fire-retardant- treated (FRT) Douglas-fir dimension lumber and 3/8-inch plywood. Eight types of fasteners and three fire-retardant treatments were tested. Joint specimens were exposed 2 and 7 years in cold, standard, and warm-humid conditions, then tested in lateral bearing. Best overall performance...
Fifteen large glued-laminated beams made from visually graded hem-fir lumber were designed, fabricated, and tested to failure in static bending. When tested, the beams had an average moisture content of 7.5 percent. The beams were 40 feet long, 5 1/8 inches wide and 24 inches deep. Before laminating, individual pieces...
Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
These are the proceedings of the fifth short course in managing young forests in the Douglas-fir region, conducted by the School of Forestry, Oregon State University, June 11-13, 1973.
Knowledge and experience in the management of young forests continues to expand. The short courses are designed to keep pace with...