Sawmill Residue Yields from Yellow-Poplar Saw Logs

With data on a sample of 230 saw logs selected in western North Carolina, equations were developed for predicting sawmill residue yields of yellow-poplar saw logs. Logs were weighed individually with and without bark, and chippable residue, and lumber were weighed after logs were sawn into 4/4 lumber on a band headsaw. Saw logs produced averages of 54 percent lumber, 15 percent bark residue, 18 percent chippable residue, and 13 percent sawdust. Tables developed with regression equations predict saw-log weights with and without bark, lumber weight, and sawmill residue weights by log-scaling diameter and length classes.

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