Yield for trapezoidal sawing and some other sawing methods

The high cost of logs makes it very important for sawmills to achieve a high yield of sawn lumber. The choice of sawing method is one of the primary factors affecting yield. In this study, a comparison was made between the volume yield for the most common sawing method in Sweden (the cant sawing split taper method), and the yield produced by two rather new sawing methods. Yield was determined both by computer simulation and by manual optimum allocation. The study shows that when sawing small logs, trapezoidal sawing produces considerably higher yield than the other sawing methods. The trapezoidal method appears to show potential for the production of blanks for the millwork and furniture industries.

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