Aspen Lumber and Dimension Stock Recovery in Relation to Sawing Pattern

In a 90-year-old trembling aspen stand in Northern Ontario, 125 trees, each having at, least one 8-foot log 8 inches or more in diameter at the small end and being 50 percent sound, were randomly allocated by Dbh classes to three sawing patterns: Live, Modified Live, and Around. This sample yielded 544 merchantable 8-foot logs which were sawn and analyzed for lumber and dimension stock yield. Lumber yields for the Live patterns proved to be equal or superior to Around sawing; the Live methods permit faster lumber production. An Analysis of Variance showed that Live is superior to Modified Live for both lumber value per gross cubic foot of log volume and percent recovery. Modified Live proved to be superior for the production of No. 1 Common and Better. Dimension stock results were similar with a slight change in favor of Live.

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