TITLE

Assessments of hardwood lumber edging, trimming, and grading practices of small sawmills in West Virginia

AUTHOR(S)
Jingxin Wang; Goff, William A.; Osborn, Lawrence E.; Cook, Gregory W.
PUB. DATE
May 2009
SOURCE
Forest Products Journal;May2009, Vol. 59 Issue 5, p69
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Six small-scale sawmills were investigated on two separate occasions to evaluate lumber edging, trimming, and grading practices across West Virginia. Measurements for wane, clearwood, and defects were taken on 60 pieces of lumber prior to edging and trimming at each sawmill. Measurements were taken for widths and defects at 1-foot increments on the board to retain the optimum width and length of the top face using reference points to maintain the determined measurements. A private National Hardwood Lumber Association (NHLA) certified lumber graderwas employed to determine the grade of each face of the boards. The boards were then put back into the system to be edged, trimmed, and graded by sawmill employees. After processing, the grade and surface measure obtained independently by the private NHLA certified grader and the sawmill's grader were compared for each board. Results indicated that all of the sawmills investigated were losing money to some extent because of their edging, trimming, and grading practices. An average loss of nearly half a foot of surface measure per board was found based on all 360 boards. The average dollar-value loss ranged from 0.5 to 24.1 percent per board.With increased training in edging, trimming, and grading requirements, these losses could be reduced and the small sawmills' yield and revenue could be improved.
ACCESSION #
43802537

 

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