Field test of edgewise restraint southern pine lumber drying

Laboratory and pilot-scale research has shown the efficacy of edgewise restraint as a means of reducing warp in pine dimension lumber drying, specifically for the 2 by 4 size. As a step toward development and commercialization of edgewise restraint technology, a field test was run at a cooperating southern pine sawmill. For the field test, pilot-scale equipment was applied to the commercial drying operation. Results showed a statistically significant reduction in crook and a positive improvement in grade mix retention.

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