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    Author(s): Brian K. Brashaw; Robert J. Ross
    Date: 2005
    Source: Undervalued hardwoods for engineered materials and components. Madison, WI : Forest Products Society; Marquette, MI : Northern Initiative, [c2005]: pages 79-85.
    Publication Series: Book Chapter
    PDF: Download Publication  (184 KB)

    Description

    Prefabricated wood I-joists and headers are widely used in wood construction throughout the world. They are used in roof and floor systems in both residential and commercial applications. These structural members consist of flanges, which are made from either solid-sawn or laminated veneer lumber, that are adhesively bonded to a web that is made of plywood or oriented strandboard (OSB). Approximately 1 billion linear feet of wood I-joists and headers are manufactured annually. Currently, softwood species are predominately used for flanges. The work presented in this chapter was conducted to demonstrate the use of undervalued hardwood lumber for flanges in structural I-joists and headers.

    Publication Notes

    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Brashaw, Brian K.; Ross, Robert J. 2005. Chapter 7:I-joists and headers. Undervalued hardwoods for engineered materials and components. Madison, WI : Forest Products Society; Marquette, MI : Northern Initiative, [c2005]: pages 79-85.

    Keywords

    Wooden beams, flanges, lumber, testing, hardwoods, mechanical properties, headers, I-beams, joists, I-joists, sugar maple, red maple, yellow birch, aspen

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