Sawing High-Quality Red Oak Logs

High grade red oak logs (Quercus sp.) were carefully matched by size and quality into pairs. One member of each pair was randomly selected for conventional four-sided grade sawing and the other member for live sawing (i.e., sawing through the through with the plane of each saw cut parallel to all others). The boards were edged and graded and, whenever upgrading was possible, they were reripped and regraded. The modest (7 percent) value advantage of live sawing over grade sawing was not statistically significant, but the more substantial (12 percent) advantage of live sawing plus reripping for grade was significant at the 1 percent level of probability. These results support similar conclusions from a computerized simulation study.

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