Effect of Gang-Ripping Width on C1F Yields from No. 2 Common Oak Lumber

Gang ripping No. 2 Common lumber will result in more than enough long pieces to meet the overall needs of the furniture and kitchen cabinet industries. This study shows that the value of No. 2 Common lumber as a raw material is higher than conventional wisdom suggests. Using computer simulation, we gang ripped a 4,200-board-foot oak data bank to 2-, 2-1/2-, or 3-inch -primary widths with salvage to a minimum size of 1- inch wide by 4- inches long. Overall random-length yield of C1F cuttings was 60 percent regardless of primary ripping widths. Narrower ripping widths produced more individual pieces and a greater number of longer pieces. Half or more of the accumulated surface area of random-length cuttings was in cuttings 40 inches or longer. More than 75 percent of the surface area of cuttings was in pieces with widths of 2 inches or more.

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