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Beam depths are typically 5 1/2 inches, 7 1/4 inches, 9 1/4 inches, 11 1/4 inches, 11 7/8 inches, 14 inches, 16 inches, 18 inches, and 20 inches. As per general rules and guidelines, a double 10 or 3 1/2 9 1/2 LVL beam can span upto 16 feet, (2) 12 can span 20 feet, (2) 3 1/2 11 7/8 can span 20 feet and (2) 16 can span 26 feet. They dont provide fine-tuned results. It is a high-strength structural engineered wood product of recent innovation and one of the most widely used kinds of lumber in construction projects in. Also, keep in mind that the size calculated is meant to work with evenly distributed loads only. For Canada switch to Canada Sizing Table Lookup. So, that means a 212 beam can go 12 feet, a 210 beam can go 10 feet, and so on. For a floor beam, select the appropriate span table for one or two floors, identify the distance it needs to span, the depth and width of the beam, the span carried by the beam, and the live or total load. The first is whether the beam is on an inside wall or outside wall. Fv does not change when you double the thickness. Additionally, we look at how to install an LVL beam. The second is whether or not there are trusses. Our VERSA-LAM LVL is manufactured in either Alexandria (Lena), Louisiana in Eastern United States, or in White City, Oregon for the Western United States. The International Residential Codes dictate that a minimum of a 32 O.C. Depth of lvl beam:- LVL beam depth are typically 5 1/2 inches (140mm), 7 1/4 inches (184mm), 9 1/4 inches (235mm), 9 1/2 inches (241mm), 11 1/4 inches (286mm), 11 7/8 inches (302mm), 14 inches (356mm), 16 inches (406mm), 18 inches (457mm), 18 3/4 inches (476mm), 20 inches (508mm) and 23 7/8 inches (606mm). A 210 can span 15 feet, a 212 up to 18 feet, and so on. Follow these few common-sense suggestions. Were one of the largest private landholders in the United States. Calculators are for use in U.S. applications only. Like APB, Parallam comes fully assembled and is comparably heavy. It is a straight, enough strong wood that fights warping and shrinking, providing great stability for your projects. We have learned from our experience to use at least a 3 1/4x.131 groove shank nail in a column of four every foot apart down the laminate. Sawn-Lumber span tables are convenient tools. That should give you the assurance that the wood you have chosen is stable enough. But you can trick WSDD tables into giving you values for double or triple 2-by beams with other deflection limits. Even if the specs say otherwise, that is the bare minimum. It is a good choice for long clear spans where sawn lumber is impractical. For more than a hundred years, Weyerhaeuser has been building and enhancing a reputation for responsible corporate citizenship. To do so, you need to determine the total load per foot that the beam will hold. There are online calculators available to help when it comes to determining what size beams are required for specific spans. The load on an outside wall with clear span trusses is exactly half the load on each wall. The American wood Council National design specification for wood, lvl is type of structural composite lumber comparable to glued laminated timber (Glulam). the user identify which of Boise Cascades engineered wood products meet the demands of the There is also a wider 7 version available in depths up to 28 7/8. As per general thumb rule and guidelines, a double 16 lvl beam can allow span upto 26 feet far distance used for residential building or projects. When in doubt, make sure to talk to an engineer or a supplier for clarity. Outside wall. link to How To Organize A Bathroom Closet. The width can be increased by laminating in multiples of 1 3/4 inches. Select the application below you are looking to calculate. Also, remember, you can add results from beams together using the . According to International Residential Codes, any joist, beam or header should not have a bearing of less than 1-1/2. Satisfying Code for Fire Protection Requirements, Trus Joist Floor Installation Video Guide. Guest PostContact usPrivacy policySitemap, LVL beam: Sizes, Cost, Span, Calculator and price, How much does it cost to install a LVL beam, Which steel is best for house construction in India, How many brick in 1 cft brick work & their calculation, What size purlin for 3m, 4m, 5m, 6m & 8m span, How much steel required for 3000 sq ft slab, : 12mm, 10mm, 8mm, 16mm, 20mm 25mm , : (8 , 10 , 12 , 16 20 ), What is the rough opening for a 30, 24, 32, 28 & 36 inch pre-hung door, : 12mm, 10mm, 8mm, 16mm, 20mm 25mm, : (8 , 10 , 12 , 16 , What is the rough opening for a 30, 24,, How many stairs do you need to go up 10, 12,, How tall is a 4, 2, 3, 5, 6, 7, 10 & 14 step stringer. How far can a double 9 1/2 lvl span a double 9 1/2 lvl is made by laminating of two 1 3/4 inches or 40mm thick and 9 1/2 deep LVL. For example: A 20 foot long LVL beam should be 12 inches deep (2012) 20 = 12 inches). This calculator will give you the depth and thickness of the LVL beam you require based on the span: Are you wondering how far can you span a 24-ft LVL beam? It commonly requires one or two temporary walls to support the ceiling or floor structure while support posts are placed or king studs installed, and the new beam measured, cut, and lifted into place. Laminated veneer lumber (LVL) is one of the most commonly engineered wood materials used in construction. Depending on its diameter, a bolt, which is a short log, may require 5 to 10 seconds to peel before its core is drained and the charger is prepared for the subsequent cycle. Use an LVL beam to eliminate twisting and splitting for quiet floors. It is worth noting that the 18-foot garage-door header application pushed TimberStrand beyond its structural limit. The width can be increased by laminating in multiples of 1 3/4 inches. Select structural grades are special-ordered in many locations. Also read: Glulam Beam Advantages Applications Table (With Examples). As per general thumb rule and guidelines, a double 3 1/2 11 7/8 lvl beam can allow span upto 20 feet far distance used for residential building or projects. Most LVL lumber is for dry interior use, but H3 and other chemically treated laminated lumber can be used outdoors and exposed to various weather conditions. (in AF&PA Design Values for Joists and Rafters #2 hem-fir = Fb @1104 psi & E @1,300,000 psi so use span table column Fb 1100). Your Do You Need an Addition or Remodel Contractor? As per general thumb rule and guidelines, a double 3 1/2 7 1/4 lvl beam can allow span upto 13 feet far distance used for residential building or projects. BC Calc | Building Design Software | Beam Span Calculator BC Calc Sizing Software The easy way to size and analyze Boise Cascade products or check a framing member's capacity. 2 pine. Lally Column vs Jack Post: Whats the Difference? The program helps As per general thumb rule and guidelines, a double 3 1/2 9 1/2 lvl beam can allow span upto 17 feet far distance used for residential building or projects. This calculator matches up with 90% of the applications in the 2012 International Residential Code book. On spans that skew a bit longer, there may be the requirement for more bearing space. The loose side of the veneer is the side closest to the knife edge, while the tight side is the opposite. By clicking accept, you consent to the use of ALL cookies as noted in the. LVL beams are used for a variety of structural framing and construction purposes, including floor and ridge beams, joists, headers, lintels, rafters, trusses, rim boards, and scaffold planks. Roof? But dont worry by using our LVL beam calculator; you can just enter the span in feet and the calculator will give you the right size of LVL beam. This hip roof calculator returns the value of the common rafter, the side rafter, the length of the hip, the off set of the hip, the height of the scaffold, and much more. Beam width should be 1/4 to 1/3 beam depth. Copyright 2023, Boise Cascade. It is then wrapped for shipping to domestic and international locations. The length of an LVL beam is governed by its width and depth. VERSA-LAM laminated veneer lumber (LVL) beams and headers eliminate twisting, shrinking and splitting, and deliver flatter, quieter floors and structures. Typically shear values are incorporated into the tables, and required bearing length at the ends of beams are given too. For example: An 12 inches deep an LVL beam can span upto 20 feet (1212 20= 20 foot). Metal decking uses sheer studs, for instance. Labor is a factor. Basically, you are determining whether the beam is going to be on an outside wall or somewhere inside. Use these simple calculators to size Trus Joist TimberStrand LSL and Parallam PSL beams and headers. The American wood Council National design specification for wood, lvl is type of structural composite lumber comparable to glued laminated timber (glulam). The Canadian Wood Council's Beam Calculator has been developed for the purpose of information only. In other words, it is either going to be on an outside wall, or somewhere on the inside. These cookies will be stored in your browser only with your consent. Characteristic Properties are determined in accordance with AS/NZS 4063.2:2010 and so comply with the provisions of the New Zealand Building Code through clause 2.3 for engineering design in accordance with NZS3603:1993 Timber . Design a LVL beam width based on the fact that the typical width of an LVL beam is 1-3/4 inches to 3-1/2 inches. Making use of WSDD tables. What is hydration of cement? The span of a beam is determined by its depth, breadth, and typical construction factors including building width, loads, number of stories, joist spacing, etc. Double check yourself with these span charts. We know how to measure the forces acting on a beam, now well use this information to choose the appropriate structural material to resist the loads. LSL is made by upgrading low-value aspen and poplar fiber into high-grade structural material. Lvl Beam Span Calculator Pdf If you ally need such a referred Lvl Beam Span Calculator Pdf ebook that will have enough money you worth, get the completely best seller from us currently from several preferred authors. Interior Beams. How Much Does It Cost To Replace A Rotted Support Beam. Jet tube dryers are used to clip continuous veneer sheets to a specific width and dry them to the desired moisture level. Design a beam depth based on the rule of thumb for estimating the depth of manufactured beams which is to divide the span by 20. For most tables, you can then select the size of lumber you are using (26, 28, etc.). Due to lathe checks running perpendicular to the grain, the loose side of the veneer has several small fractures. Wood Beam Design And Installation Considerations Weyerhaeuser. The strength rating of the LVL wood beam, its width and depth, along with the length, all affect the cost, as does transportation to the job site and associated installation requirements. The beam calculator is a great tool to quickly validate forces in beams. Once I determined the loads, I sized and priced the beams that are required to carry the loads. The wood fiber used is strong and stiff. The number of sheets in the stack determines the thickness of the laminated beam. TimberStrand FrameWorks Header, a laminated strand lumber (LSL) made by TJM, is the latest entry into the structural header and beam competition. For the most part, interior beams have to include the roof load. Works with evenly distributed loads only. Live load determines stiffness and total load is used to determine strength. Design a beam width based on the fact that the typical width of an LVL beam is 1-3/4 inches to 3-1/2 inches. With engineered wood, you use both live load and dead load values. How far can a double 10, 12, 14, 16 & 18 lvl beam span | How far can a 10 lvl span | How far can a 12 lvl span | How far can a 14 lvl span | How far can a 8 lvl span | How far can a 16 lvl span | How far can a 5 1/2 lvl span | How far can a 7 1/4 lvl span | How far can a 9 1/4 lvl span | How far can a 9 1/2 lvl span | How far can a 11 1/2 lvl span | How far can a 11 7/8 lvl span. To accomplish that, it is common to add a beam to provide that structural support. A 1212 column could support 6,000 square feet. Use it to help you design steel, wood and concrete beams under various loading conditions. Beam Deflection Calculator One of the most powerful functions is using it as a beam deflection calculator (or beam displacement calculator). a double 11 1/2 lvl is made by laminating of two 1 3/4 inches or 40mm thick and 11 1/2 deep LVL. Lvl Header Beam Span Calculator. At CivilSir, we share all the information related to civil engineering. Conclusions:- Choosing the right size beam to span 20 feet can make all the difference. Laminated veneer lumber typically comes in 1-3/4, 3-1/2, 5-1/4, and 7 widths or thicknesses, and depths of 5-1/2 to 24, including standard and nonstandard depths. In Part 1, Calculating Loads On Headers and Beams, we learned how to trace load paths and translate roof, wall and floor loads into pounds per lineal foot of supporting beam. Also Read: What is a flitch Beam? To calculate the length of LVL beam required, measure from the center of the support posts at each end of where the beam will be placed. LVL beam thickness is usually between 1-3/4 (one ply) and 7 inches (4ply). enough to analyze a variety of common applications. PSL is an assembly of long, thin strands of wood veneer glued together to form continuous lengths of beam. 2 Gallons 3 Gallons 4 & 5 Gallons. Check bearing tables online for reference. Generally speaking, though, using a 3-1/4 x .131 groove shank nail every four feet apart across the laminate is the best bet. You can use LVL beam calculator to find required size of lvl beam. The overall moisture content of the veneer is reduced to the desired level in the jet tube drier by blowing hot air over the surface of the veneer sheets, which causes moisture to be peeled off. Safety (3). Guest PostContact usPrivacy policySitemap, How many floors can be constructed in 600 sq ft, relation between biswa, bigha, acre and hectare in UP, How much siding do i need for a 1010 shed, How many 26 do i need for a 1010, 1212, 810 & 1012 deck, How many studs do i need for a 1012 shed, : 12mm, 10mm, 8mm, 16mm, 20mm 25mm , : (8 , 10 , 12 , 16 20 ), What is the rough opening for a 30, 24, 32, 28 & 36 inch pre-hung door, : 12mm, 10mm, 8mm, 16mm, 20mm 25mm, : (8 , 10 , 12 , 16 , What is the rough opening for a 30, 24,, How many stairs do you need to go up 10, 12,, How tall is a 4, 2, 3, 5, 6, 7, 10 & 14 step stringer. 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). In general, the manufacturing of LVL is identical to that of structural plywood; however, the fundamental distinction between the two products is the grain orientation of each veneer. Continuous Span Beams are beams supported at three or more points along their length. Header Supporting Floor and Roof -Continuous Span Floor, Header Supporting Floor and Roof -Simple Span Floor. When in doubt, consult a professional. Select the proper span table for one or two floors, and determine the distance to span, the depth and breadth of the beam, the span carried by the beam, and the live or total load for a floor beam. The thickness and depth of the required member will be listed. TimberStrand Header comes only in 3 widths in depths that range from 4 3/8 to 18. In other words, some manufacturers do not base roof loads on horizontal projection, but rather base loads on the actual length of the rafter. It has been my experience to never use a beam smaller than a two ply 2 x 8. For help, simply click on the beside the section you need help with, watch this Tutorial Video. LVL beam width should be 1/4 to 1/3 beam depth. Beam depths are typically 5 1/2 inches, 7 1/4 inches, 9 1/4 inches, 11 1/4 inches, 11 7/8 inches, 14 inches, 16 inches, 18 inches, and 20 inches. LVL beam span calculator, design an LVL beam depth based on the rule of thumb for estimating the depth of manufactured beams which is to divide the span in inches by 20. Use an LVL beam to eliminate twisting and splitting for quiet floors. attributes equivalent to high-grade timber. Design a beam width based on the fact that the typical width of an LVL beam is 1 3/4 inches. The press line might be batch-type or continuous-type. Tutorials, Calculators, and Building Codes. Beam depths are typically 5-1/2 inches, 7-1/4 inches, 9-1/4 inches, 11-1/4 inches, 11-7/8 inches, 14 inches, 16 inches, 18 inches and 20 inches. Ensure you have evenly spaced your columns and have anchored them securely into your foundation. Calculator is for use in U.S. applications only. Installing an LVL in a reno can be much more complicated and messier. This is not the type of job that an amateur should undertake and the proper measurements are essential to doing the job properly. As per general thumb rule and guidelines, a double 12 lvl beam can allow span upto 20 feet far distance used for residential building or projects. And so on. These are typically for smaller areas like an interior door opening. An LVL beam length are generally available in 24, 28, 32, 36, 40 and 44 feet with special order upto 60 Feet. LVL beams can be utilized as floor and ridge beams, joists, headers, lintels, rafters, trusses, rim boards, and scaffold planks for a range of structural framing and construction applications. For example what size lvl beam for a 20 foot span, as per general thumb rule, for a 20 foot span, size of LVL beam or GLULAM should be (2012)20 = 12 inches deep and width of LVL beam = 12 4 = 3, which is nearly equal as 3-1/2 inches or 2ply wide, thus you need something like a 12 thick or 3-1/2 11-7/8 size of LVL beam to span upto 20 feet. Copyright 2023 CivilSir and Ph.D.), Wood Engineering and Bio-Based Building Materials Specialization, Building Science and Green Building Specialization, UWW Professional Education and Online Courses, Certificate in Sustainable Building Construction, Pre-Construction Student Team Takes Second Place in 2022 ASC Competition, Register Now for BCTs Winter 22 Online Courses, New Book from Alexander Schreyer: Fundamentals of Residential Construction. Therefore, a double 26 carries 2 x 347 = 694 pounds per lineal foot. Make sure the shear value (Fv) for the species and grade you use exceeds the Fv listed in the span table. Determine what size deck beam you need based on your support post spacing, as well as the proper concrete footing diameter, with our beam span calculator at Guide to Calculating Steel Beam Sizes Calculate the size needed for a beam, girder, or header made from No. Further Read: Difference between load bearing vs. non load bearing wall. and joists instead. For example a roof is subjected to a full snow-load only a small percentage of time during the course of a year, so this is factored into the roofs load calculation. Using span tables, I have sized several structural elements for 2 climatic conditions. They have the skills, knowledge, and experience to ensure that the job gets done properly and safely. Generally, you can find LVL beams in a 4-foot increments starting at 24 feet and going up to 44 feet long, with special customize size up to 60 feet. It is a composite product made of many thin layers of veneer that align the length of the final timber. You will also need to ensure that the concrete flooring, 2-3 inches or so, is poured over top of the floor to add additional support. Once the loads acting on structural beams are calculated, the next step is to size and select the appropriate beam. It is available in thickness from 19mm (3/4 inches) to 178mm (7 inches). With the information above, as well as the span and with of the loaded area, you can get a good representation of what size beam is required. a double 16 lvl is made by laminating of two 1 3/4 inches or 40mm thick and 16 deep LVL. There is always the factor of self-weight of the beam that will bear down on the columns. For 20-foot spans, the wood beam has to be at least 18 inches in depth. Our VERSA-LAM LVL is manufactured in either Alexandria (Lena), Louisiana in Eastern United States, or in White City, Oregon for the Western United States. Bricks (4) Weight of glulam and lvl beams ridge beam sizing calculator how far can a lvl beam span without sizes span calculator what size ridge beam for 2 4 6 8. Purpose Benefits Thickness (Know ALL). Additionally, if holes need to be drilled through an LVL wood beam, it is recommended that the beam be 3-1/2 or wider. UMass Amherst | Department of Environmental Conservation, Home / Publications / Articles / Sizing Engineered Beams and Headers. We offer a range of exciting career opportunities for smart, talented people who are passionate about making a difference. Covers any span and every load with pin point accuracy. This refers to measuring between the centroids of each column or similar vertical member. Header spans are typical for a window and a patio door. Calculate the size needed for a beam, girder, or header made from No. The lengths typically run from 4 to 48, with increments of 4 available. Depending on its intended function, it may be a floor beam, joist, rafter, ridge beam, header, or lintel. LVL is product of recent innovation they are result of new technology and economic pressure to make use of new wood species and smaller trees that cannot be used to make solid Lumber. So, the longest unsupported span possible using LVL would be 80-feet. LVL beam: Sizes, Cost, Span, Calculator and price, How much does it cost to install a LVL beam, How much does a LVL beam weight per foot, What size wood beam for 20′, 16′, 18′, 12′, 22′, 24′, 25′, 26′ & 30 feet span. Civil Engineering (3) This website uses cookies to improve your experience while you navigate through the website. The applications are: (see diagrams and calculations for each condition), 1) structural ridge beam with a 20-foot span Anything that is 5 or above should be at least double that. A 210 can span 15 feet, a 212 up to 18 feet, and so on. Any accurate calculation of beam size must take into account the tributary load area for a beam, based on its spacing and the magnitude of load being carried. To figure out or estimate of lvl beam size and their depth. No matter what product you specify, structural performance is controlled by strength (Fb) and Stiffness (E). 3-1/2 2.1E 3100 at 7-1/4 deep will span 20, a 9-1/2 up to 26, and other depths 30. Next use the buttons to select the supported length for the beam. Make sure to double-check yourself using span charts. Laminated timber is normally sold in 4-foot increments starting at 4 and continuing up to 44 or 48 in length. There are formulas out there that not only determine the span and size of a beam,but the structural ability of engineered- and sawn-wood beams. APB is a laminated beam product that comes in 3 1/2 and 5 1/2 widths to match standard 24 and 26 wall thicknesses. Such was a recent experience when I was looking for a beam for a renovation project. For L/180 multiply by 0.5. Related Guide:How Far Can A 68 Beam Span? Having the grain of all veneers run in the same longitudinal direction results in a product that is strong when edge loaded as a beam or face loaded as a plank. These are all variables that cannot be addressed as they are project-specific and would require calculations that are specific to the location of the construction moisture and weathering variables as well as type of wood being used. VERSA-LAM laminated veneer lumber (LVL) beams and headers eliminate twisting, shrinking and Laminated veneer lumber or LVL is much look like plywood, generally made of thin sheets of wood which are sandwiched and bound with super stronger glue. The beam might be a single-width or 3-4 layers thickness of 1-3/4 wide lengths. The applications and spans selected are arbitrary, but common. a double 14 lvl is made by laminating of two 1 3/4 inches or 40mm thick and 14 deep LVL. This product is new and distributors dont want to stockpile inventory. Span tables are easy to use, but they have limitations. Saad Iqbal is a professional civil engineering and freelance write. This means trying to compare different products is often difficult, so always check with your local building department or a Structural Engineer. There are some common-sense tips to use. The LVL wood beams are stamped every 4 with the manufacturers name, branding logo, or product identification number and stress grade in accordance with ASTM D5456 or CSA 086. UMass Shortcuts: EmailMoodleSpire WVD Online Storage IT Support PP Solutions Center, Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Pinterest (Opens in new window)Click to[], Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on Reddit (Opens in new window), Click to email a link to a friend (Opens in new window), The John W. Olver Design Building at UMass Amherst, Design Building Virtual Construction Site Visit, Undergraduate Major: B.S. Anthony Power Beam (APB) is a relative newcomer to the structural beam market positioned to compete with LVL and Parallam. But overall, for short spans, sawn-lumber is tough to beat. The 18-foot garage header for our house weighs in at 380 pounds. Each manufacturer either offers span charts for their LVL products depending on various construction criteria, or they do not. You can do these calculations yourself or you can use span tables. Totally the load for that wall will be twice as much as whatever the load would be for buildings that have a center wall. Beam Span Calculator. To get update of latest post signup below by giving you email address. 2 pine or LVL. On average, depending on width and depth, an LVL beam will cost between $7 and $40 a linear foot. U.S. Sizing Table Lookup Header Supporting Roof Calculator Use the drop downs to select your roof load, house width, and material to calculate the appropriate size of TimberStrand or Parallam header. To download our VERSA-LAM span and size chart PDFs, click on the links below. choose the row for the size of lumber used in the double header: use 26 in this example. Both loads are treated as live loads. Our goal is to provide you with information to help with your next or current building project. Just make sure that the shear value (Fv) for your woods grade and species is more than what is listed on the table. The span is based on a load-bearing capacity of 1,360 pounds per square foot and a deflection limit of L/360. Look carefully at the literature before you assign roof loads per-foot of ridge beam or header. This can be used to observe the calculated deflection of a simply supported beam or of a cantilever beam. The width can be increased by laminating in multiples of 1-3/4 inches or 40mm. For example: A 20 foot long LVL beam should be 12 inches deep (2012) 20 = 12 inches). LVL beam is generally made of thin sheets of wood which are sandwiched and bound with super stronger glue. Without professional input, a structural system can be deemed unsafe. The layers are heated, glued, and pressed together in different widths or thicknesses, and then cut to depths to meet various load requirements. Long Span 35 Lvl Beam Design Structural Ering General Discussion Eng. Using our beam load calculator. A new build install is much like using standard lumber. Billets can be up to 6-feet broad and have a maximum transport length of 80 feet. As per general thumb rule and guidelines, a double 14 lvl beam can allow span upto 23 feet far distance used for residential building or projects. Lvl sizes may vary according to manufacturer but lvl standard thickness of 1 3/4 inches (one ply), 3 1/2 inches (2 ply), 5 1/4 (3 ply) and 7 inches (4ply). The veneer will continuously be peeled from the log with a consistent thickness and without any fractures due to the pressure bar exerts on the veneers surface. This calculator takes all of this into consideration. Block vs Poured Foundation: Whats the Difference? While a professional will cost substantially more than a DIY effort, there is the peace of mind in knowing that the job is being done properly. Laminated veneer timber is commonly available in widths or thicknesses of 1-3/4, 3-1/2, 5-1/4, and 7, as well as depths ranging from 5-1/2 to 24, including standard and nonstandard depths. Here Im, Saad Iqbal a civil engineering geek and a passionate blogger with handy graphics designing skills. Just do the following: determine the total load per foot of beam, pick the span you want (pick 40 for example), select the Fb column of the lumber you intend to use American Forest & Paper Associations Wood Structural Design Data, provides span recommendations for solid-sawn wood beams up to 32 feet, but the table runs a hefty 140 pages. Common depth of LVL beam are 5 1/2, 7 1/4, 9 1/4, 9 1/2, 11 1/2, 11 7/8, 12, 14 16 & 18 deep.