Effect of kiln schedule on wrap in Douglas-fir lumber
1992
Milota, M.R.
Lumber from large and small Douglas-fir logs was dried by slow and fast schedules at conventional and elevated temperatures. Twist, bow and crook were evaluated before and after drying. Neither drying temperature nor drying rate affected warp. Warp in a given board was not strongly related to percent juvenile wood, ring count, final moisture content, or density of the board. Drying times were similar for lumber from small and large logs. Lumber from small Douglas-fir logs exhibited more twist but otherwise seemed to dry as well as lumber from large logs.
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