Thanks again Mike and your crew. 4) basement girder with a 16-foot span In 2012, North American LVL manufacturers produced more than 1.2 million cubic metres (43.4 million cubic feet) of LVL in 18 different facilities, and in 2013 the production increased with more than 14%. Note: a single 2×6 will support 347 pounds per lineal foot of beam. [10][11], LVL is commonly manufactured in North America by companies that also manufacture I-joists. Our Titan Timber® beams resist checking and twisting and are job site ready with one-piece construction and more cost-efficient than LVL, and PSL. Common Uses of Timber TEchnologies Glulam Beams. It is a cost-effective option for many applications, but it can be very hard to find. Parallam dimensions are compatible with the other engineered wood products like I-joists and LVL. Give us a call or stop in to talk with one of our experts today. Laminated veneer lumber (LVL) is an engineered wood product that uses multiple layers of thin wood assembled with adhesives. Typically shear values are incorporated into the tables, and required bearing length at the ends of beams are given too. match the total load and live load values to the values listed in the tables. Due to its composite nature, it is much less likely than conventional lumber to warp, twist, bow, or shrink. Commonly referred to as composite wood or man-made wood, engineered wood is manufactured by joining several wood pieces together with adhesive. [8] The stacking of these veneers into a complete board, called a billet, creates a single piece of LVL sharing a common direction of wood grain. The claims are basically true, but you do pay for the improved performance. Engineered Wood manufacturers are quick to point out that their products provide superior strength and stiffness. The thickness and depth of the required member will be listed. [1], Structural composite lumber, including LVL, are a relatively recent innovation. [9] LVL is typically rated by the manufacturer for elastic modulus and allowable bending stress. Its bending strength is often only 1/2 that of engineered wood products. Structural ability of sawn- and engineered-wood beams are predicted through mathematical calculation. The service there was awesome. I really appreciated your genuinely friendly manner, helpfulness and professionalism. In other words, some manufacturers do not base roof loads on horizontal projection, but rather base loads on the actual length of the rafter. Prefabricated wall panels can save you time and money! You made my day! Table 1 consolidates loading, sizes and cost data for all of the applications. But you can trick WSDD tables into giving you values for double or triple 2-by beams with other deflection limits. What are the shipping options for engineered wood products? APB requires very little labor because is comes “fully assembled”, but it is fairly heavy. The applications are: (see diagrams and calculations for each condition), 1) structural ridge beam with a 20-foot span The applications and spans selected are arbitrary, but common. LVL is a type of structural composite lumber, comparable to Glued laminated timber (Glulam) but with a higher allowable stress. Engineered wood is consistent from one piece to the next because each piece is made more-or-less the same. LSL is also made from strands rather than veneer, although the strands are shorter and aligned with less precision than PSL and is created as billets that are like a thick version of oriented strand board. Most corporations considered Troutner's invention to be a niche product and it was not until the mid 1980s when logging became an environmental concern and corporations moved toward engineered lumber that LVL became widespread in use. For L/180 multiply by 0.5. [6] The invention of laminated veneer lumber as known today can be attributed to Arthur Troutner. SCL consists primarily of three products: Laminated Strand Lumber (L… Commonly referred to as composite wood or man-made wood, engineered wood is manufactured by joining several wood pieces together with adhesive. [7], Laminated veneer lumber is similar in appearance to plywood, although in plywood the veneers switch direction while stacking and in LVL the veneers all stack in the same direction. Call 800-890-7732). I called a couple of days ago to place an order for snow guard metal and was helped by Mike Hellman, General Manager. Fv does not change when you double the thickness. Some …, Are you planning a new building project in Dishman, Washington? You must verify the loading conditions for each application before sizing beams and headers. There is an incredibly long list of options to consider when specifying sawn and engineered beams or headers. Discount Lumber, Metal & Truss is committed to providing only the highest quality design advice and quality building materials, including  lumber, trusses, decking, fencing, windows, and much more. Like APB, Parallam comes fully assembled and is comparably heavy. The report provides several options for prescriptive I-joist floor assemblies that comply with 2012 IRC Section R501.3. …, Are you planning to build a fence, a shed, or a new home in Spokane, …. The wood fiber used is strong and stiff. Modern Wood-Frame Construction: Firefighting - Fire Engineering 24 Jan 2014 Lightweight wood construction refers to engineered wood … This product is new and distributors don’t want to stockpile inventory. If you’re building a new home or garage, or renovating an existing structure on your property, you’re probably familiar with engineered wood products. Building codes allow reductions in live loads based on duration of load. Extremely durable, easy to work with and low maintenance, engineered wood is also quite affordable. Once I determined the loads, I sized and priced the beams that are required to carry the loads. privacy policy | The top-selling engineered wood products product is the Boise Cascade 2 in. Structural ability of sawn- and engineered-wood beams … They are excellent as floor and roof framing supports or as headers for doors, windows, garage doors, and columns. Other members of this category are parallel strand lumber (PSL) and laminated strand lumber (LSL). Turn open floor plans into reality. But the upside is that 2 workers can usually handle the weight of each lamination as it is assembled. Billets of PSL can be as large as 12 inches (300 mm) wide and 60 feet (18 m) long while LVL can range up to 4 feet (1.2 m) wide and 80 feet (24 m) long. Formulas that determine the allowable span and size of a beam rely on a host of variables like species, grade, size, deflection limit and type of load. Make sure the shear value (Fv) for the species and grade you use exceeds the Fv listed in the span table. Although the creation of LVL is often proprietary and thus its make-up is largely dependent on individual manufacturers, in general one cubic meter of North American lumber is composed of 97.54% wood, 2.41% of phenol formaldehyde resin, 0.02% of phenol-resorcinol-formaldehyde resin, and 0.03% fillers. There certainly are many different loading scenarios than the ones demonstrated. The sizing steps are: determine the total load and live load per foot of beam, identify the type of load you are supporting (roof snow, non snow or floor). LVL can also be used in combination with gluelam as an outer gluelam tension lam to increase the strength of the gluelam beam. Live load determines stiffness and total load is used to determine strength. Together we’ll discuss pricing, how to plan ahead, ordering and installing truss systems. Technical experts have computed many combinations of these variables and present a variety of solutions in the form of span tables. So be careful when you compare products. BCI ® Joists are specially constructed I-joists with flanges made from strong VERSA-LAM ® laminated veneer lumber with … The table lists spans with a deflection limit of L/360, normal for floor loads. What a great guy he is. Structural composite lumber (SCL) is a term used to describe a family of engineered wood products created by layering wood veneers or strands and bonding them with moisture-resistant adhesives to form structural framing members such as beams, studs, and columns.