Dimensional stabilization of pine four-by-fours via restraint drying

Four-by-four inch southern yellow pine lumber was dried, pressure treated, and kiln-dried after treatment to assess the effects of restraint drying on warp. Results showed a statistically significant reduction in average warp as crook and twist for the restraint-dried material. Lumber grade mix, based on warp criteria, was higher for the restraint-dried material following both initial kiln-drying and kiln-drying after treatment.

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