Change Of Grade And Volume Of Douglas Fir Shop And Better Lumber During Kiln Drying

Results are reported for changes in grade and volume during kiln drying of Shop and Better grades of old-growth, coast range Douglas-fir lumber. Findings indicate that considerably more degrade occurs in the higher lumber grades than in the low. Wide thick lumber degraded more during drying than did narrow thin lumber. Log size and grade do not directly affect the amount of degrade, but may indirectly affect it through the grade and size of lumber produced.

Excerpt from Change of Grade and Volume of Douglas-Fir Shop and Better Lumber During Kiln Drying All lumber from each log was marked with its mill log number dur ing the sawing Operation and grade marked on the green chain. All lumber was tallied by mill log number, green grade, width, length, and thickness. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.