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Within-grade quality differences for 1 and 2A common lumber affect processsing and yields when gang-ripping red oak lumberAuthor(s): Charles J. Gatchell; R. Edward Thomas; R. Edward Thomas
Source: Forest Products Journal. 47(10): 85-90.
Publication Series: Miscellaneous Publication
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DescriptionUsing a new computer grading program (UGRS), 1 and 2A Common lumber was sorted based on the percentage of board surface measure found in the maximum allowable number of grading cuttings. For 1 Common, 46.0 percent of 921 boards had percentages in the FAS range (83-1/3% and above). For 2A Common, 54.7 percent of 825 boards had percentages in the 1 Common range. When gang-ripped first, these quality sorts produced important differences in the number of rips, crosscuts, and parts produced for primary and salvage operations when processed to easy and difficult cutting bills. In addition, important differences emerged in the cost and amount of lumber required for each of the quality sorts.
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CitationGatchell, Charles J.; Thomas, R. Edward. 1997. Within-grade quality differences for 1 and 2A common lumber affect processsing and yields when gang-ripping red oak lumber. Forest Products Journal. 47(10): 85-90.
- Quality Characteristics of Appalachian Red Oak Lumber
- 1992 Data Bank for Red Oak Lumber
- 1998 data bank for kiln-dried red oak lumber
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