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 ENGINEERED WOOD PRODUCTS |
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I-Joist
I-joist are "I"-shaped engineered wood structural members that offer strength,
versatility and economy for use in residential and light commercial
applications. I-joists are comprised of top and bottom flanges of
various widths united with webs of various depths. The flanges resist
common bending stresses, and the web provides outstanding shear
performance. I-joists can be manufactured using solid sawn lumber or
structural composite lumber for the flange components, and plywood or
oriented strand board for the web. This versatility allows the
manufacturer to make the most efficient use of wood fiber resources in
their region while producing products that consistently perform to
known standards.
LVL
Laminated veneer lumber (LVL) is an engineered wood product created by layering dried and graded wood veneers with waterproof adhesive into blocks of material known as billets. Cured in a heated press, LVL is typically available in various thicknesses and widths and is easily worked in the field using conventional construction tools. LVL is also known as structural composite lumber (SCL). In LVL billets, the grain of each layer of veneer runs in the same direction, rather than cross-lamination which is typical of other engineered wood products such as plywood. The resulting parallel-laminated lumber out-performs conventional lumber when either face- or edge-loaded. LVL is a solid, highly predictable and uniform engineered wood product that is sawn to consistent sizes and is virtually free from warping and splitting. One important benefit to LVL is that the veneering and gluing process enables large timbers to be made from relatively small trees of many species, thereby providing for efficient utilization of wood fiber resources.
RIMBOARD
Rim Board is a specially designed component that is engineered to work in concert with wood I-joists to deliver a complete engineered wood framing solution. Rim Board fills the space between the sill plate and the bottom wall plate, or between the top plate and bottom plate in multi-floor construction. In addition to filling the void, rim board is an integral structural component that transfers both lateral and vertical forces. To function properly, the rim board must match the depth of framing members, and conventional solid sawn lumber typically does not match the new generation of wood I-joists. Rim boards can be manufactured using plywood, OSB, glulam or LVL. Depending on the product used, building material suppliers can deliver rim boards in lengths up to 24 feet. These engineered wood rim boards have greater dimensional stability, higher strength, increased structural reliability, more consistent quality and a lower tendancy to check or split than sawn lumber.
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