Development of grading systems for short-length lumber

The abundance of low grade hardwood timber and a shortage of high grade timber of many species has led to the examination of alternative processing methods for converting logs to lumber. One technique for using lower grade logs Is to produce short length lumber. However, present grading rules for short length lumber are not good predictors of the lumber’s true value. A new method of grading short length lumber Is proposed, with furniture part yield data presented to show the methods effectiveness. A batch grading system is also illustrated.

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