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Engineered Lumber

Engineered Lumber

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Engineered Lumber

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  1. Engineered Lumber

  2. Oriented Strand Board (OSB) • OSB is manufactured from waterproof heat-cured adhesives and rectangular shaped wood strands that are arranged in cross-oriented layers, similar to plywood. • Produced in huge, continuous mats, OSB is a solid panel product of consistent quality with no laps, gaps or voids.

  3. OSB • Applications • OSB is widely used in residential and commercial construction • Also innovative features such as a slip-resistant texture to panels designed for roof sheathing can be added. • Benefits • OSB panels can be manufactured from a wide range of fast-growing species and from relatively small trees. • utilizes a maximum amount of wood fiber from each tree that is harvested

  4. Plywood • Manufactured from thin sheets of cross-laminated veneer (To overlay or plate with a thin layer of wood ) • bonded under heat and pressure with strong adhesives,.

  5. Plywood • A Wide Range of Products • available in different grades ranging from smooth, natural surfaces suitable for finish work also commonly used for wall sheathing and subfloors. • More than a dozen common thickness • Over twenty different grades

  6. LVL (Laminated Veneer Lumber) • 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,

  7. LVL • 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. • Benefits • The resulting parallel-laminated lumber out-performs conventional lumber • LVL is a solid, highly predictable and uniform engineered wood product that is sawn to consistent sizes. • Is virtually free from warping and splitting. • Strong, Reliable and Consistent • gluing process enables large timbers to be made from relatively small trees of many species.

  8. I-Joists • "I"-shaped engineered wood structural members • offer strength, versatility • Used 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 uniform stability.

  9. I-Joists • What they can be made of • I-joists can be manufactured using solid sawn lumber or structural composite lumber for the flange components • Plywood or oriented strand board can be used for the web. • Benefits • They are ideal for long spans • Readily available from most builder supply sources • Strength and versatility

  10. Glued Laminated Timber (Glulam) • Glulam (Glued laminated timber) is a stress-rated engineered wood product comprised of wood laminations, that are bonded together with strong, waterproof adhesives.

  11. Glued Laminated Timber • Used in residential construction to large commercial projects • Glulam has greater strength and stiffness than comparable dimensional lumber. • Benefits • competitive cost • Pound for pound, it’s stronger than steel. • glulam beams can span long distances with minimal need for intermediate supports. • Flexibility with design • Glulam components can be a variety of species,

  12. Timberstrand • Timberstrand LSL (Laminated Strand Lumber) • Made of fast-growing aspen and yellow poplar • Used for a broad range of applications, such as Rim Board, window headers, wall studs and door headers.

  13. Timberstrand • Timberstrand Wall Studs are second to none in quality and dimensional uniformity. • Used often in areas of visual importance like family rooms with tall walls, kitchens and hallways.  • Engineered studs are available in many conventional sizes and even long lengths for tall walls. • Benefits • resists swelling from air-moisture level changes • Comes in wide variety of sizes • Great in all weather conditions

  14. Particleboard • is made from wood particles, which are often the residue from other wood processing operations, combined under heat and pressure with a water resistant binder.

  15. Particleboard • additives can be incorporated to provide greater dimensional stability • Widely used in the manufacturing of furniture, cabinets, floor underlayment, laminate flooring, stair treads, shelving and many other products. • Benefits • Today's particleboard gives industrial users the consistent quality and design flexibility needed for fast, efficient production lines • Particleboard panels are manufactured in a variety of sizes and densities

  16. Environmental Benefits of Engineered Lumber • Efficient because they utilize more of the available resources with minimal waste. • Produced using faster growing and underutilized wood species from managed forests, • Reduce the industry's reliance on Old-Growth forests.

  17. References • http://www.apawood.org/level_b.cfm?content=prd_osb_main • http://www.cedar4sale.com/poplar_plywood/Pictures.htm • http://www.pacificwoodlaminates.com/ • http://sres.anu.edu.au/associated/fpt/osb/2.html • http://www.epa.gov/ttn/chief/ap42/ch10/final/c10s06-1.pdf • http://www.osbguide.com/industrial.html