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    Author(s): Thomas D. Fahey; Douglas L. Hunt
    Date: 1972
    Source: Res. Pap. PNW-RP-131. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 14 p
    Publication Series: Research Paper (RP)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (1.5 MB)

    Description

    Trees cut in thinning of Douglas-fir stands were processed into lumber at a profiled cant chipper, a square cant chipper with resaw, and a bandmill.

    Results are reported in terms of both cubic feet and Scribner long log scale. Included are tables by log input by diameter class for three studies, recovery by lumber grade and dimension item for three studies, and value and recovery by diameter class for the square and profiling canters. Recovery totals for all three studies in both lumber and chips are also reported.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Fahey, Thomas D.; Hunt, Douglas L. 1972. Lumber recovery from Douglas-fir thinnings at a bandmill and two chipping canters. Res. Pap. PNW-RP-131. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 14 p

    Keywords

    lumber, recovery ratios, thinning (trees), sawmill equipment

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