Flexural Properties of Lumber from a 50-Year-Old Loblolly Pine Plantation

Authors

  • Evangelos J. Biblis
  • Honorio F. Carino

Keywords:

Southern pine, dimension lumber, grade recovery, plantation stand, flexural properties, design requirements, visual grade compliance

Abstract

Flexural properties of dimension lumber from a 50-year-old loblolly pine plantation stand were evaluated. The results indicate very impressive visual grade recovery, particularly No. 1, which amounted to about 44% yield. The results also indicate that the overall degrees of compliance of visually graded lumber to standard SPIB requirements of strength and stiffness are 99 and 94%, respectively.

References

American Society for Testing and Materials (ASTM). 1994. Standard methods of static tests of timbers in standard sizes. D 198-84. Standard method for establishing structural grades and related allowable properties for visually graded lumber. D 245-81. Annual Book of ASTM Standards, section 4, vol. 04.09. Philadelphia, PA.nBendtsen, B. A. 1978. Properties of wood from improved and intensively managed trees. Forest Prod. J. 28(10): 61-72.nBiblis, E. J. 1990. Properties and grade yield of lumber from a 27-year-old slash pine plantation. Forest Prod. J. 40(3): 21-24.nBiblis, E. J., R. Brinker, H. F. Carino, and W. C. McKee. 1993. Effect of stand age on structural properties and grade compliance of lumber from loblolly pine plantation timber. Forest Prod. J. 43(2): 23-28.nBiblis, E. J., H. Carino, R. Brinker, and W. C. McKee. 1995. Effect of stand density on flexural properties of lumber from two 35-year-old loblolly pine plantations. Wood Fiber Sci. 27(1): 25-33.nBiblis, E. J., H. Carino, R. Brinker, and W. C. McKee. 1997. Flexural properties of lumber from two 40-year-old loblolly pine plantations with different stand densities. Wood Fiber Sci. 29(4): 375-380.nBiblis, E. J., H. Carino, and L. Teeter. 1998. Comparative economic analysis of two management options for loblolly pine timber plantations. Forest Prod. J. 48(4): 29-33.nGreen, D. W., C. L. Link, A. L. Debonis, and T. E. McLain. 1986. Predicting the effect of moisture content on the flexural properties of southern pine dimension lumber. Wood Fiber Sci. 18(1): 134-156.nMacPeak, M. D., L. F. Burkart, and D. Weldon. 1990. Comparison of grade, yield, and mechanical properties of lumber produced from young fast-grown and older slow-grown planted slash pine. Forest Prod. J. 40(1): 11-14.nPearson, R. G., and R. C. Gilmore. 1971. Characterization of the strength of juvenile wood of loblolly pine (Pinus taeda L.) Forest Prod. J. 21(1): 23-30.nPearson, R. G., and R. C. Gilmore. 1980. Effect of fast growth rate on the mechanical properties of loblolly pine. Forest Prod. J. 30(5): 47-54.nSouthern Pine Inspection Bureau. 1994. Grading rules. SPIB, Pensacola, FL.n

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Published

2007-06-25

Issue

Number 2 / April 1999

Section

Research Contributions

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