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    Author(s): Pong W.Y.; James M. Cahill
    Date: 1988
    Source: Res Pap. PNW-RP-393. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 22 p
    Publication Series: Research Paper (RP)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (897 KB)

    Description

    A sample of 130 incense-cedar (Libocedrus decurrens Torr.) trees was selected from the Eldorado National Forest in California. The trees were felled and bucked into 403 woods-length logs and processed through a sawmill cutting Shop and Common grades of lumber. Recovery estimates are shown for woods-length logs based on Scribner board-foot scale and cubic-foot scale. Analysis showed that board-foot recovery ranged from 169 percent for 6-inch logs to 103 percent for 34-inch logs. Cubic-volume recovery of rough green lumber increased from 50 percent to 62 percent for the same range of diameters. Yields of higher quality lumber (Shops and Moulding) increased as log diameter increased. Percentage of Scribner scaled defect was found to be correlated with several measures of product recovery.

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    Citation

    Pong W.Y.; Cahill, James M. 1988. Lumber recovery from incense-cedar in central California. Res Pap. PNW-RP-393. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 22 p

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    Keywords

    Lumber recovery, lumber value, incense-cedar, log scale, California

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