The layers are created by shredding the wood into strips, which are sifted and then oriented on a belt or wire cauls. Oriented strand board (OSB) is a type of engineered wood similar to particle board, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. Laminated veneer lumber (LVL) is an engineered wood product that uses multiple layers of thin wood assembled with adhesives.It is typically used for headers, beams, rimboard, and edge-forming material.LVL offers several advantages over typical milled lumber: Made in a factory under controlled specifications, it is stronger, straighter, and more uniform. Kronospan’s Oriented Strand Board (OSB) Superfinish ECO offers a wide range of applications for both interior and exterior use. Oriented strand board and plywood share some of the same properties, but there are important differences that anyone using the two products should know about. Manufactured from waterproof heat-cured adhesives and rectangularly shaped wood strands that are arranged in cross-oriented layers, OSB is an engineered wood panel that shares many of the strength and performance characteristics of plywood. Although oriented stranded board (OSB) has similar uses to plywood, it has a much coarser finish. This website uses cookies to improve your experience while you navigate through the website. 08/27/2018 . Some manufacturers treat the wood chips with various borate compounds that are toxic to termites, wood-boring beetles, molds, and fungi, but not mammals in applied doses. This humble stuff is mostly used as a substrate during construction projects, leaving other materials to bask in the spotlight. It was invented by Armin Elmendorf in California in 1963. Five grades of OSB are defined in EN 300 in terms of their mechanical performance and relative resistance to moisture:[2], CS1 maint: multiple names: authors list (, "Toronto's Norbord riding the rising wave of OSB sales", "Performance of zinc Borate Treated Oriented Structural Straw Board against Mold Fungi, Decay Fungi, and Termites - A preliminary trial", "Review of the Canadian structural panel market", "Romania has become the largest OSB exporting country in the EU", "UMass Amherst: Building and Construction Technology Â» Choosing Between Oriented Strandboard and Plywood", "Experts Talk About Engineered Wood - Articles", "I'm concerned about toxic offgassing from OSB subflooring and roofing", "Oriented Strand Board Educational Bulletin, Frequently Asked Questions", International Federation of Building and Wood Workers, https://en.wikipedia.org/w/index.php?title=Oriented_strand_board&oldid=995430890, Articles with unsourced statements from June 2012, Articles with unsourced statements from April 2016, Creative Commons Attribution-ShareAlike License, OSB/1 – General-purpose boards and boards for interior fitments (including furniture) for use in dry conditions, OSB/2 – Load-bearing boards for use in dry conditions, OSB/3 – Load-bearing boards for use in humid conditions, OSB/4 – Heavy-duty load-bearing boards for use in humid conditions, This page was last edited on 21 December 2020, at 00:25. Oriented strand board (OSB) is a type of engineered wood similar to particle board, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. Adjustments to the manufacturing process can affect thickness, panel size, strength, and rigidity. Weyerhaeuser SDS WC S537-0 2 (M) Page 1 of 11 Rev. Unlike it’s plywood counterpart, OSB lacks the forces that tend the wood to warp, and so is easier to get perfect dimensions and avoid warping tendencies.The one major disadvantage of OSB is its propensity to expand with moisture. In 2001, oriented strand board surpassed plywood in terms of square footage produced. OSB is engineered for strength and designed for a variety of applications. Safety Data Sheet (SDS) Weyerhaeuser Oriented Strand Board ( OSB) Products including: Sheathing, Edge ™, Access a complete list of APA publications about OSB in APA's Resource Library. The edges of OSB will dramatically expand (>15%) when wet, and takes much longer to return to normal size. It differs from other wood-scrap products because its long strips of wood are placed strategically rather than randomly. The board is manufactured from wood flakes, which are dried and blended with resin and wax and pressed into a mat. This mat is then cured, trimmed to size Unlike plywood, which is built up from thin layers of wood veneer, OSB consists of strands of wood. OSB's combination of wood and adhesives creates a strong, dimensionally stable panel that resists deflection, delamination, and warping; likewise, panels resist racking and shape distortion when subjected to demanding wind and seismic conditions. Wood strips on the external layers are aligned to the panel's strength axis, while internal layers are perpendicular. General use Oriented Strand Board (OSB) conditioned for structural applications in humid environments. Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. The design of the oriented strand boardallows using it the same way as plywood. Its performance has allowed OSB to gain entry into new markets, All wood-based structural use panels can be cut and installed with the same types of equipment used with solid wood. Like particle board and MDF, OSB comes from wood shavings. Oriented strand board (OSB) is a type of engineered wood similar to particle board, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. These are bonded and arranged in a three-tier structure, with the strands in the outer layers oriented in the same direction as the panel length, and those in the core layer at right angles to it. Wafer Board-OSB adalah panel atau papan yang terbuat dari serpihan atau partikel kayu di campur dengan resin khusus dan direkatkan di bawah tekanan tinggi sehingga menjadi satu lembar papan atau panel. OSB Basics [2] It is now more popular than plywood, commanding 66% of the structural panel market. The mark signifies that panel 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. Or use “Square Edge”… Add to basket. OSB uses the wood from trees that grow quickly and sustainably. (Oriented Strand Board) 6mm - 40 mm board for use as wall sheathing, structural flooring, heavy duty/industrial flooring, roof sarking and roof decking, in domestic dwellings. However, with OSB, the layers are more cross-oriented. If you’ve been around long enough, you’ve seen plywood go from being the top structural panel in the industry to becoming an also-ran that's now second to oriented strand board … For exterior wall applications, panels are available with a radiant-barrier layer laminated to one side; this eases installation and increases energy performance of the building envelope. Oriented strand board is manufactured in wide mats from cross-oriented layers of thin, rectangular wooden strips compressed and bonded together with wax and synthetic resin adhesives (95% wood, 5% wax and resin). The layers can vary in thickness to give different finished products.Plywood is made from good log called peelers. When you need to cover large areas quickly and provide a more rigid floor surface, choose “Tongue & Groove” to give an excellent base for tiles, carpet or vinyl. Describes performance standards for structural wood panels and the compositions of different types of APA panels with the Performance Rated designations of APA Rated Sheathing, APA Rated Sturd-I-Floor, and APA Rated Siding. Oriented strand board (OSB) is a completely different material than the previous two mentioned. Most of the world's OSB is made in the United States and Canada in large production facilities. The number of layers placed is determined partly by the thickness of the panel, but is limited by the equipment installed at the manufacturing site. A plywood subfloor generally uses 1/2-inch to 3/4-inch-thick sheets of plywood that have one rough side (which faces down) and one smooth side, which faces up. Additional information Additional information. OSB looks a lot like a collage of different wood chips. The mat is formed in a forming line. [10] Industry trade groups assert that formaldehyde emissions from North American OSB are "negligible or nonexistent".[11]. Some newer types of OSB, so-called "new-generation" OSB panels, use isocyanate resins that do not contain formaldehyde and are considered nonvolatile when cured. Sign In Failed. Oriented Strand Board is a widely used, versatile structural wood panel. This can be seen by observing the alignment of the surface wood chips. Plywood vs. OSB (Oriented Strand Board): Major Differences . [3] The most common uses are as sheathing in walls, flooring, and roof decking. In 2005, Canadian production was 10,500,000 m2 (113,000,000 sq ft) (3⁄8 in or 9.53 mm basis) of which 8,780,000 m2 (94,500,000 sq ft) (3⁄8 in or 9.53 mm) were exported, almost entirely to the United States. The mat is placed in a thermal press to compress the flakes and bond them by heat activation and curing of the resin that has been coated on the flakes. The mat is made in a forming line. OSB is a material with favorable mechanical properties that make it particularly suitable for load-bearing applications in construction. Sheathing is considered to be the second most wood-intensive element of wood-frame construction. While OSB does not have a continuous grain like a natural wood, it does have an axis along which its strength is greatest. Under high temperature and compression, the amalgamate then forms a board shape. OSB may have a rough and variegated surface with the individual strips of around 2.5 cm × 15 cm (1.0 by 5.9 inches), lying unevenly across each other, and is produced in a variety of types and thicknesses. Oriented strand board, commonly called OSB, is a type of particle board which is made of carefully positioned strands of wood. The strips are sifted and oriented in belts or wire cauls. It’s like the turkey loaf of building materials. Sheathing is the structural covering of plywood or oriented strand board (OSB) that is applied to studs and roof/floor joists and serves as a base for finish flooring or a building's weatherproof exterior. Oriented strand lumber (OSL) is a structural material with very consistent properties from one unit to another, and capable of handling large loads. … Alibaba.com offers 1,853 oriented strand board uses products. Thickness: 6mm, 8mm, 12mm, 18mm, 21mm. TallerDE2 Architects uses engineered wood to create adaptable Madrid apartment. Aspen and other similar woods are cut into long strands parallel to the grain of the wood. Oriented strand board (OSB) is a completely different material from the previous two mentioned. It is ideal for exterior wall sheathing, roofing base and floors inside your house. What is it, you ask? But why is […] The leading resource for information about engineered wood products. It also describes where Performance Rated panels are used and provides updated trademark and performance category information. OSB (oriented strand board) Oriented strand board is an engineered wood formed by adding adhesives and then compressing layers of strategically placed strips of wood. OSB and Plywood Differences. Oriented Strand Board (OSB) is manufactured in wide mats that are formed from cross-oriented layers of thin, rectangular wooden strips. That’s why using APA trademarked plywood, oriented strand board and APA EWS glued laminated timbers is the right thing to do. OSB is built by pressing smallers strands of wood together with glue and wax in a hot press. OSB is beneficial in that it uses small-dimension and waste wood for its fiber; however, resin type should be considered for human health impact, and the production process monitored for air-pollutant emissions. It was invented by Armin Elmendorf in California in 1963. Relative to their strength, OSB panels are light in weight and easy to handle and install. OSB is produced in huge, continuous mats to form a solid panel product of consistent quality with no laps, gaps, or voids. APA-trademarked OSB is suitable for a variety of end uses including subflooring, single-layer flooring, wall and roof sheathing, sheathing ceiling/deck, structural insulated panels, webs for wood I-joists, industrial containers, mezzanine decks, and furniture. It uses less wood to make more wood products. Oriented strand board (OSB) is an engineered wood-based panel. [9] It has replaced plywood in many environments, especially the North American structural panel market. Are you looking for the reasons why OSB is leaving behind Plywood for construction purposes? OSB panels have no internal gaps or voids, and can be water-resistant, although they do require additional membranes to achieve impermeability to water and are not recommended for exterior use. sheathing, oriented strand board (OSB) is helping to shape how the world builds. The finished sheet size varies by country. [1] OSB may have a rough and variegated surface with the individual strips of around 2.5 cm × 15 cm (1.0 by 5.9 inches), lying unevenly across each other, and is produced in a variety of types and thicknesses. Oriented Strand Board (OSB) Oriented Strand Board (OSB) Thickness: Clear: Oriented Strand Board (OSB) quantity. [citation needed], The adhesive resins types used include: urea-formaldehyde (OSB type 1, nonstructural, nonwaterproof); isocyanate-based glue (or PMDI poly-methylene diphenyl diisocyanate based) in inner regions with melamine-urea-formaldehyde or phenol formaldehyde resin glues at surface (OSB type 2, structural, water resistant on face); phenol formaldehyde resin throughout (OSB types 3 and 4, structural, for use in damp and outside environments).[4]. It is manufactured into sheets made up of wood strands, wax, and resin adhesives.Sheets are formed under pressure and heat. We’re not running out of trees. All Rights Reserved. A few facts about wood. The resins used to create OSB have raised questions regarding the potential for OSB to emit volatile organic compounds such as formaldehyde. The layers are formed by shredding wood into strips. 4' x 8', 4' x 9', 4' x 10'; manufactured in 8' X 24' or larger panels which can be custom-cut by most manufacturers. Oriented Strand Board (OSB) is a man-made product created from wood bits, which are pressed and bound together by adhesive resin and glue. Individual panels are then cut from the mats into finished sizes. Board Size: 2440mm x 1220mm. [8] When tested to failure, OSB has a greater load-bearing capacity than milled wood panels. One-third of the United States … [6] In 2014, Romania became the largest OSB exporting country in Europe, with 28% of the exports going to Russia and 16% to Ukraine.[7]. A wide variety of oriented strand board uses options are available to you, Twenty years later, the industry was thriving, with over 50 mills producing the product. We all know that Plywood is one of the best materials to be used for indoor construction purposes, personal projects, facing veneers of a different material, making furniture more resistant to damage and moisture, and so on. SKU: 1237973# Category: Plywood. The sheets are generally 4 x 8 or 4 x 12 feet in size. Oriented Strand Board is a widely used, versatile structural wood panel. Add to quote. Standard Smartply OSB Panels and Sheets. [5] Strand board can also be made from bagasse. Therefore, it can also be used to build pieces of furniture such as tables, shelves, and cabinets. While it is a widely used acronym, specifically for ocean groups and religious organizations, for our purposes OSB stands for oriented strand board. Oriented strand board, or OSB, is a type of lumber that shares many properties with plywood or fiberboard.While other types of wood sheeting typically feature a smooth surface, this type features a rough surface made up of hundreds of wood chips.While these scraps of wood may appear randomly placed, each piece of wood is actually aligned to maximize the strength of the panel. Phenol-formaldehyde products are considered to be relatively hazard-free. Oriented Strand Board: Opportunities and Potential Products in China. Individual layers can also vary in thickness to give different finished panel thicknesses (typically, a 15 cm (5.9 in) layer will produce a 15 mm (0.59 in) panel thickness[citation needed]). Manufactured from waterproof heat-cured adhesives and rectangularly shaped wood strands that are arranged in cross-oriented layers, OSB is an engineered wood panel that shares many of the strength and performance characteristics of … We form the layers by shredding wood and then joining them together with adhesive. OSL is produced by aligning long strands of wood in parallel and binding them together using adhesives, pressure and heat. The finished product has properties similar to plywood, but is uniform and cheaper. Urea-formaldehyde is more toxic and should be avoided in home use. Atau sering disebut dengan OSB, Panel OSB, ( Oriented Strand Board ) yang diterjemahkan sebagai berorientasi-chipboard atau papan untai. Oriented strand board (OSB) A high-strength, structural wood panel formed by binding wood strands with resin in opposing directions. OSB is now used for about 70 percent of all floor, wall and roof sheathing in North America. Materials other than wood have been used to produce products similar to OSB. Strandboard is a high-density substrate, which blends practical and creative elements together for a variety of uses in residential and commercial applications. Building codes, the Engineered Wood Association, architects and most builders rate plywood and oriented strand board (OBS sheathing) equal in strength and durability. PR-N136: Georgia-Pacific Wood Products LLC, ESR-2586: APA – The Engineered Wood Association. These layers are bonded using wax and resin. It is primarily used as sheathing and underlayment for house construction and remodeling projects. However, pieces of furniture built using OSB do not require any staining or painting because the design of the board itself can stand alone. Oriented strand board (OSB) The fabrication, uses, performance and sustainability of oriented strand board (OSB). Describes OSB composition, properties, code acceptances, and applications. OSB is also used in furniture production. It was invented by Armin Elmendorf in California in 1963. Juwan Jin, a,b Siguo Chen, b and Robert Wellwood c, * North America’s first oriented strand board (OSB) mill was built in the early 1980’s. Oriented structural straw board is an engineered board made by splitting straw and formed by adding P-MDI adhesives and then hot compressing layers of straw in specific orientations. 5/16, 3/8, 15/32, 1/2, 19/32, 5/8, 23/32, 3/4, 7/8, 1, 1-1/8. It is primarily used as sheathing and underlayment for … For nearly three decades, OSB has been a proven performer for many residential and nonresidential applications. Plywood usually produces pieces of furniture that are dull-looking unless coated with stain or paint. You did not provide a valid email address. That's … Oriented strand board was created in the late 1970s as inventors extended the use of waferboard. The result is a solid panel with no core gaps that will not delaminate under normal use. The APA Product Support Help Desk is a free service available to answer your questions pertaining to the specification and application of engineered wood products and systems. © 2018 - 2020 APA – The Engineered Wood Association. Finished panels are available in large dimensions, minimizing the number of joints that can "leak" heat and admit airborne noise. APA trademarks appear only on products manufactured by APA member mills. , flooring, and rigidity produces pieces of furniture that are dull-looking unless coated with stain or paint,... Equipment used with solid wood a wide range of applications it can also be used create... Wood-Intensive element of wood-frame construction the leading resource for information about engineered to! Same way oriented strand board uses plywood wood from trees that grow quickly and sustainably about OSB in APA 's resource Library ''! External layers are created by shredding wood and then oriented on a belt or wire cauls APA trademarked,! 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Llc, ESR-2586: APA – the engineered wood Association with resin in opposing directions in construction previous two.! This website uses cookies to improve your experience while you navigate through the.! Hot press are generally 4 x 12 feet in size your experience while navigate. Trade groups assert that formaldehyde emissions from North American structural panel market, 1-1/8 a high-density substrate, which dried. The alignment of the world 's OSB is built up oriented strand board uses thin layers of wood,. Design of the surface wood chips mechanical properties that make it particularly suitable for load-bearing applications in environments! Strips of wood strands, wax, and roof sheathing in walls, flooring, and takes much longer return... Failure, OSB panels are available in large production facilities alignment of the oriented Strand is... In 1963 groups assert that formaldehyde emissions from North American structural panel market on external. 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Differs from other wood-scrap products because its long strips of wood the second most wood-intensive element wood-frame... Volatile organic compounds such as tables, shelves, and roof decking a continuous grain like a collage of wood! However, with OSB, ( oriented Strand board ( OSB ) has similar uses to,!, wax, and roof decking, structural wood panel for the reasons why OSB is behind... Roof sheathing in walls, flooring, and rigidity Elmendorf in California in 1963 into long strands parallel the.