West Virginia Yellow-poplar lumber defect database
Lawrence E. Osborn, Charles J. Gatchell, Curt Charles Hassler, Northeastern Forest Experiment Station (Radnor, Pa.)
U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1992 - Technology & Engineering - 10 pages
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1-character 2B Common 3Graded according according to NHLA Appalachian Hardwood Center approximately 3,800 board average diameter better face board length boards with NHLA Computer simulations contained within NHLA coordinate of board coordinate of defect correspond to V32 Crook Defect Cross break cutting surface area defect information defect rectangle defect-size code degree in forestry descriptions of 627 FAS and FAS1F floppy disk greater0 Greatest Y coordinate growth rings inch or less Knot Liriodendron tulipifera Lowest X coordinate lumber defect database Lumber Grade M.S. degree mean cutting surface minimum cutting MMM.MM Morgantown National Hardwood Lumber NHLA cuttings taken NHLA grade NHLA rules NHLA Special Kiln-Dried NHLA width NHLA yields number of boards number of cuttings number of NHLA Special Kiln-Dried Rule subgrade taken during grading thru totaling approximately 3,800 U.S. Department Virginia Tech Virginia yellow-poplar lumber West Virginia University West Virginia yellow-poplar wood worm holes worse face yellow-poplar database yellow-poplar lumber defect