Lvl beams span tables3/11/2024 ![]() Being a composite, LVL is much less likely than dimensional lumber to twist, warp, shrink, or bow. The days of crooked and warped lumber are in the past. Engineered LVL lumber is made in a factory and is robust, straight, and more uniform than dimensional lumber. Is LVL Stronger than Dimensional Lumber?ĭimensional lumber in today’s market is grown quicker with wider spaced growth rings and is not as strong as it once was. ![]() Other manufacturers also make LVL engineered products, and all use similar processes for making engineered lumber. Weyerhauser referred to the product as “Microlam” for two years until then changed it to “Microllam.” Many still refer to Microlam when speaking of Microllam as they are frequently interchanged to identify all types of laminated veneer lumber. Microlam and Microllam refer to the same LVL product. Microlam is a common misspelling of Microllam, a Weyerhauser brand of engineered wood products. They are cut to size, wrapped, and prepped for storage or transportation. The process to get to a finished LVL beam starts with debarking the log, then rotary peeling the veneer to send the sheets to the jet tube dryers to reduce the moisture content to 8-10%.Īfter drying, the manufacturer grades the veneer sheets, gets a resin application, and compresses the sheets until dry. The most common wood used in LVL beams is Douglas fir. During World War II, plywood became an essential war material. There is recorded use by the Chinese, English, French, and Russians well before the 20th century, and it received its first patent in 1856. An LVL engineering process uses multiple layers of thin wood assembled with adhesives.Įngineered lumber was first seen in use as early as ancient Egypt. LVL is typically made in a factory, straighter, more uniform, and stronger than traditional milled lumber. The difference is that plywood changes the grain’s direction with each layer, and LVL keeps the grain direction the same. LVL stands for Laminated Veneer Lumber and is similar to plywood in appearance. Seeking guidance from a structural engineer is imperative to ascertain the precise size and specifications required to ensure safety and adherence to regulations.Video can’t be loaded because JavaScript is disabled: What is Laminated Veneer Lumber? (LVL) () The dimensions of the beam will vary based on load considerations and the chosen material. To cover a 30-foot span, one can utilize either a multiple-ply 2×12 or opt for engineered wooden beams like LVL. These beams are often custom-manufactured to precisely meet the specific requirements of your project. As a general guideline, for a 30-foot span, it is typically recommended to use LVL beams with dimensions of 5-1/4″ × 13 1/2″ or 5-1/4″ × 16″. ![]() The size of LVL beams required for a 30-foot span is contingent on several factors, including the anticipated load and compliance with local building codes. Steel beams reign supreme in this domain, offering unmatched load-bearing capacity and durability. When spanning a 40-foot distance, the choice of I beam becomes crucial. Selecting the Optimal I Beam for a 40-foot Span
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