U.S.D.A. Forest Service Research Paper FPL.U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1968 - Forest products |
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ASTM average blocks chips corner pads corrugated fiberboard crook cushioned deck boards deflection Dense KD determined diameter dimension lumber Douglas-fir dried Edge knot effect End joint evaluation failure feet fiber fiberboard box fibril angle finger joints Forest Products Laboratory Forest Service glued-laminated grade grain deviation green hickory impact inch kiln-dried latewood length load loblolly pine lodgepole pine Madison material measured midlength modulus of elasticity modulus of rupture obtained OHIO STATE UNIVERSITY ovendry weight pallets paper FPL particleboard pendulum pile sections pith planks plywood poles pounds Radial red oak samples sawed posts sawing methods slope of grain small clear specimens southern pine southern pine piles species specific gravity strength ratio stringers studs summerwood tension laminations threaded nails tion toughness treated trussed rafters U. S. Forest Products U.S. Department U.S.D.A. FOREST U.S.D.A. FS res upper logs values vertical warp weight losses yellow-poplar