Category: Lsl vs lvl

25.10.2020 By Barr

Lsl vs lvl

Insulated Studs? This is a BIG Innovation in Framing!

Traditional solid sawn lumber is still a very popular choice for builders primarily due to their familiarity with the product.

The costs for solid sawn lumber are initially lower, but product quality issues can become costly for builders to correct after installation. Dimensional lumber is also limited to smaller depths and lengths since its size is dependent on the size of the timber cut to make them. Prefabricated wood I-joists are structural, load-carrying products. Their "I" configuration provides high bending strength and stiffness characteristics. That "I" configuration consists of an upper and lower horizontal component—flange—and a vertical section—web—between the flanges.

I-joist depth can also vary. Individual pieces of lumber are end-joined together to create long lengths referred to as laminations.

lsl vs lvl

These laminations are then face-bonded together to create the finished product. Advantages of glulam include:. A dvantages of LVL include:. The growth of engineered lumber products is testimony to the technological adaptability of the wood products industry in the face of a changing wood fiber resource base. Although the term engineered lumber is used to describe a variety of materials, most are defined as structural components that have been fabricated.

Engineered wood is manufactured by bonding together wood strands, veneers, lumber or other forms of wood fiber to produce a larger and integral composite unit that is stronger and stiffer than the sum of its parts. Probably the most significant contributor to the increased use of engineered lumber is the total installed costs are less than that of dimensional lumber.

Additional benefits are related to ease of installation, dimensional stability, and structural integrity of engineered products. Glulam beams and wood I-joists can carry greater loads over longer spans than is possible with solid sawn wood of the same size," adds Merry. Consistency of the material quality is the key advantage of engineered lumber. Fabricated from dry materials to very tight manufacturing standards, wood I-joists generally do not shrink, warp, cup, crown, or twist.

Quality assurance programs are required during manufacturing to ensure final products of uniform strength and stiffness. These factors all contribute the product's dimensional stability. Engineered lumber can speed installation time and reduce labor since they are lighter and can be spaced further apart than dimensional lumber.

The result is typically a lower total installed cost per square foot with engineered lumber," adds O'Day. Engineered lumber also reduces the number of call backs for builders.

Squeaky, or bouncy floors are usually expensive to correct. Installations using engineered I-beams can significantly reduce callbacks related to this problem.The use of engineered wood products is an essential component of nearly all wood-framed buildings. This article will focus on two specific types of engineered wood products, structural composite lumber SCL and glue laminated Glulam timber framing. Understanding the intended uses and differences between various SCL products and glulam framing is essential for design professionals.

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.

SCL members provide numerous advantages over sawn conventional lumber, including higher strengths, dimensional stability, and resistance to moisture changes. Laminated Strand Lumber LSL is manufactured from flaked wood strands and resembles oriented strand board OSB in appearance, though the strands are arranged parallel to the longitudinal axis of the member.

lsl vs lvl

LSL is typically less expensive than other engineered wood beams. Due its high allowable shear strength, LSL beams have capacity for larger penetrations than other engineered wood beam options.

LSL is also ideal for use in rim conditions due to minimal shrinkage, cupping, and high fastener holding strength when used in highly loaded diaphragms or for shear transfer at plywood shear walls. Parallel Strand Lumber PSL is manufactured from veneers laid into long, parallel strands and bonded together.

PSL beams are primarily used in beam and header applications where high strength is required. PSL beams can be stained or finished where an aesthetically pleasing exposed application is desired.

Floor Joists: Solid Lumber, TJI’s, LVL and Open Web Floor Trusses

Available sizes, strengths, and stiffnesses are similar to PSL but are generally cheaper, making it a commonly specified beam type. This is especially beneficial in retrofit options where lifting a wide, heavy beam into place is cumbersome or infeasible.

LVL stud and columns are available as well from some manufacturers. Glulams are popular due to their engineered strength, versatility, availability, and cost. However, custom glulams can be fabricated in almost limitless widths, depths and profiles, giving glulam beams a distinct advantage over SCL beams in their versatility and architectural appeal. Glulams have a long history of being used beautifully in exposed, large open areas such as vaulted ceilings, churches, theatres and a vast array of other public spaces.

Manufacturing processes for glulams allow for members to be cambered, curved, and fabricated in unique shapes, such as arches or as bridge members. Different appearance grades for exposed conditions may also be specified to increase architectural appeal.

Fire Station 76 in Gresham, Oregon that highlights glulam tudor arches. For exterior or weather-exposed conditions, glulam beams are generally preferred over SCL beams. Weyerhaeuser, one of the few manufacturers of PSL in the U. Few other SCL treatment options exist. Alternatively, pressure treated or preservative treated options exist for glulam members. Additionally, several naturally durable species of glulam beams are produced in the U.

Typically, only wider beam sections will meet the required fire rating due to the depth of charring of any exposed face. Design professionals should be knowledgeable about specific product availability and costs in their areas during design as this can help drive which types of engineered wood beams are specified.

Although SCL and glulam beams can be used interchangeably at times, they also have unique advantages and limitations to be aware of.

Structural Composite Lumber (SCL)

We are excited to announce that this year the Nishkian firm is turning years old!Structural composite lumber SCLwhich includes laminated veneer lumber LVLparallel strand lumber PSLlaminated strand lumber LSL and oriented strand lumber OSLis a family of engineered wood products created by layering dried and graded wood veneers, strands or flakes with moisture resistant adhesive into blocks of material known as billets, which are subsequently resawn into specified sizes.

In SCL billets, the grain of each layer of veneer or flakes runs primarily in the same direction. The resulting products out-perform conventional lumber when either face- or edge-loaded. SCL is a solid, highly predictable, and uniform engineered wood product that is sawn to consistent sizes and is virtually free from warping and splitting.

Typical uses for SCL include rafters, headers, beams, joists, studs, columns, and I-joist flange material. These thicker sections readily nest into 2x4 or 2x6 framed walls as headers or columns. The mark signifies that product quality is subject to verification through APA audit—a procedure designed to assure manufacture in conformance with APA performance standards or the standard shown in the mark.

Includes product descriptions and specification recommendations for structural composite lumber. LVL is a widely used structural composite lumber product. It is produced by bonding thin wood veneers together in a large billet so that the grain of all veneers is parallel to the long direction.

The LVL billet is then sawn to desired dimensions depending on the end-use application. Because LVL is made with scarfed or lapped jointed veneers, LVL is available in lengths far beyond conventional lumber lengths.

Popular LVL applications include headers and beams, hip and valley rafters, scaffold planking, and the flange material for prefabricated wood I-joists. PSL is manufactured from veneers clipped into long strands laid in parallel formation and bonded together with an adhesive to form the finished structural section.

The length-to-thickness ratio of the strands in PSL is around Like LVL and glulam, this product is used for beam and header applications where high bending strength is needed. PSL is also frequently used as load-bearing columns. Similar to PSL, laminated strand lumber is made from flaked wood strands that have a length-to-thickness ratio of approximately Combined with an adhesive, the strands are oriented and formed into a large mat or billet and pressed.

LSL is used in a variety of applications from studs to millwork components. APA, AWC, and WIJMA jointly developed this paper that describes the basic code recognition for structural composite lumber and the need for product certification in compliance with the codes.You appear to be using an older browser. This website is best viewed using the latest versions of Internet Explorer, Chrome, Safari, and Firefox. If you proceed without upgrading or switching browsers, you may not experience optimal navigation or page functionality.

Thank you for your interest in Weyerhaeuser and we hope you enjoy your visit. Update my browser now. Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come.

With millions of acres across the U. As stewards of these assets, we maximize the value of every acre. We offer exceptional product performance and unparalleled support. We're committed to clean, renewable options that meet environmental standards and coexist with sustainable forestry. Sustainability is the founding concept of our business.

We were pioneers in sustainable forestry in the early s and we continue to lead the industry today. For more than a hundred years, Weyerhaeuser has been building and enhancing a reputation for responsible corporate citizenship.

We offer a range of exciting career opportunities for smart, talented people who are passionate about making a difference. Lams are individually selected and positioned in the beam layup based on their performance characteristics, then bonded together flat-wise with adhesives.

For maximum efficiency, high-strength lams are used in the tension zones of bending members where the most critical stresses occur. Any field modifications outside of published guidelines must be analyzed by a qualified design professional.

Its homogeneous cross-section makes it a good solution for columns in tall walls. Balanced glulam beams can be used in column applications, however the commonly available 24F—V4 unbalanced glulam is not recommended for column applications due to the increased eccentricity which results from a non-homogeneous cross-section and camber.

Additionally, using a cambered member as a column in a wall may cause issues with drywall installation. Additionally, Weyerhaeuser has an experienced team of field and technical support representatives available to assist with member sizing or answer questions about installation or beam modifications.

Welcome to Weyerhaeuser's new website! Timberlands Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come.

Learn More. Forestry Sustainable Forestry Western U. Forests Southern U. Forests Northern U. West Log Sales U. South Log Sales. Arborite Fertilizer.Please enable Javascript by going to your browser settings. Your browser version is no longer supported! Price Low to High. Price High to Low. Title A-Z. Title Z-A. Brand Name A-Z. Brand Name Z-A. Top Seller. Brands When making a selection below to narrow your results down, each selection made will reload the page to display the desired results.

LP Specialty Product Type When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Glulam Beam 3. Actual Thickness When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Actual Width When making a selection below to narrow your results down, each selection made will reload the page to display the desired results.

Length When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Availability Options When making a selection below to narrow your results down, each selection made will reload the page to display the desired results.

Pickup at Store Eligible Made in U. When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Change Store. Online Price More Information.

Ship to Store - Free! Go to previous page. Go to next page. Please Note: Prices, promotions, styles and availability may vary by store and online. Inventory is sold and received continuously throughout the day; therefore, the quantity shown may not be available when you get to the store. This inventory may include a store display unit.

Online orders and products purchased in-store qualify for rebate redemption. Mail-in Rebate is in the form of merchandise credit check, valid in-store only. By submitting this rebate form, you agree to resolve any disputes related to rebate redemption by binding arbitration and you waive any right to file or participate in a class action.

Terms and conditions available at www.Having pioneered this field in the s, TJ continues to hold a 60 percent share of the North American market As the supply of old growth trees needed for solid-sawn lumber dwindles, Trus Joist's products offer alternatives that are not only more readily available and more environmentally friendly, but also stronger, more reliable, and less labor intensive. M arketed under the Microlam trademark TJ pioneered the laminated veneer lumber LVL market, in which logs are cut into thin sheets of veneer, which are then dried, graded, and layered together with the grain parallel.

This configuration is then processed using adhesives, heat, and pressure to create wood struts with thicknesses of three-quarters of an inch to 3.

The LVL process eliminates the natural defects of wood, such as knots and warping, reducing wastage. The LVL process is also capable of using up to 75 percent of a log. In addition, the struts are manufactured with knockout holes for wiring and piping, reducing construction site labor costs.

Lvl Vs Lsl Beams

The strands are coated with adhesives, then subjected to pressure and microwave heating to cure the adhesives. The resulting billet, or block of lumber, can reach measurements up to 11 inches by 20 inches by 66 feet.

The PSL process, which remains closely protected by patents, is capable of using a higher percentage of a log than traditional lumber techniques or LVL. Trus Joist's youngest product line, marketed under the TimberStrand trademark, uses a proprietary technology called laminated strand lumber LSL. Unlike LVL and PSL, which typically use logs from larger trees such as pines, LSL uses small, cheaper, and faster-growing aspen, yellow poplars, and other species typically used as pulp logs.

In the PSL process, logs are flaked into inch-long strands, which are then coated with adhesives and pressed using steam-injection, which cures the adhesive and adds density to the wood. LSL boards range up to 5.

All three variations offer several advantages over typical milled lumber: the beams are stronger, straighter, and more uniform. They are much less likely than conventional lumber to warp, twist, bow, or shrink.You appear to be using an older browser.

This website is best viewed using the latest versions of Internet Explorer, Chrome, Safari, and Firefox. If you proceed without upgrading or switching browsers, you may not experience optimal navigation or page functionality.

lsl vs lvl

Thank you for your interest in Weyerhaeuser and we hope you enjoy your visit. Update my browser now. Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come.

With millions of acres across the U. As stewards of these assets, we maximize the value of every acre. We offer exceptional product performance and unparalleled support.

We're committed to clean, renewable options that meet environmental standards and coexist with sustainable forestry. Sustainability is the founding concept of our business. We were pioneers in sustainable forestry in the early s and we continue to lead the industry today. For more than a hundred years, Weyerhaeuser has been building and enhancing a reputation for responsible corporate citizenship.

We offer a range of exciting career opportunities for smart, talented people who are passionate about making a difference.

TimberStrand LSL is a green building solution as well. The manufacturing process combines technology and innovation to produce high-performing engineered lumber using small-diameter trees that are not strong or straight enough on their own to be of structural value as conventional sawn lumber products.

The strength behind cabinets and tile — straight and strong performance where you need it most. Welcome to Weyerhaeuser's new website!

lsl vs lvl

Timberlands Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come. Learn More.

Forestry Sustainable Forestry Western U. Forests Southern U. Forests Northern U. West Log Sales U. South Log Sales.

Arborite Fertilizer. Recreation With millions of acres across the U. Resources State Regulations National Organizations. Our Programs. Log In. Contact Us. Distribution Locations Products. Energy We're committed to clean, renewable options that meet environmental standards and coexist with sustainable forestry.

Sustainability Sustainability is the founding concept of our business.