A MATHEMATICAL ANALYSIS OF THE EFFECT OF KERF WIDTH ON LUMBER YIELD FROM SMALL LOGS
Abstract
Increased lmber yield through decreased kerf can occur in at least three ways: through increased length of waney jacket boards; through increased width of jacket boards; and through recovery of an additional board otherwise left in the slabs because it is less than minimum width. Increased yield ranging from 0 to 33% and averaging slightly over 7% can be expected when logs in this diameter range are sawn with a 9/32-inch kerf rather than a 12/32-inch kerf. Also, the feasibility of segregating logs by diameter according to lumber items prior to sawing is strongly indicated. In certain diameter ranges, such segregation was found to increase recovery in terms of board feet up to 15%. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1962
- Accession Number
- AD0290710
Entities
People
- Hiram Hallock
Organizations
- Forest Products Laboratory