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    Author(s): P. Koch
    Date: 1974
    Source: Forest Products Journal 24(3):35-39
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (1.7 MB)

    Description

    With 80°F wet-bulb depression and air cross-circulated at 1,000 fpm, southern pine in 2-, 3-, and 4-inch thicknesses attained 10 percent moisture content in 22.4, 35.6, and 45.3 hours. In 3- and 4-inch thicknesses, 4-inch-wide lumber required less time to dry than that 8 or 12 inches wide. Surface checks were absent or moderate in all thicknesses and widths. End-checking, absent or minor in 2-inch lumber, was moderate to severe in 3- and 4-inch lumber. At 10 percent moisture content, end checks in the thicker lumber were several inches long. Shrinkage and warp were within acceptable limits, and casehardening was relieved by 3 or 4 hours of conditioning.

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    Citation

    Koch, P. 1974. Time to dry 2-, 3-, and 4-inch S4S southern pine at 240°F as related to board width. Forest Products Journal 24(3):35-39

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