Effect of Sawmill Edging Practice on the Value of Hard Maple Lumber

The edging practices used by sawmills in the production of hard maple lumber show wide variation, even though most mills are producing factory lumber for marketing under the National Hardwood Lumber Association grading rules. This study shows the effect of four edging practices on the dollar value of approximately 3,100 board feet of hard maple lumber. The edging practices used ranged from severe to light, that is, from an almost wane-less board to one where over half the length of the board contained wane. Also included was an optimum practice in which a board could be cross-cut or ripped in order to exploit fully its grade potential. For No. 2 Common edged, according to the best practice, the value of the lumber recovered was doubled in relation to the poorest of the four practices, and for No. 1 Common the value was increased by 60 percent.

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