While it is a widely used acronym, specifically for ocean groups and religious organizations, for our purposes OSB stands for oriented strand board. All wood-based structural use panels can be cut and installed with the same types of equipment used with solid wood. Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. Individual panels are then cut from the mats into finished sizes. The resins used to create OSB have raised questions regarding the potential for OSB to emit volatile organic compounds such as formaldehyde. Plywood vs. OSB (Oriented Strand Board): Major Differences . This humble stuff is mostly used as a substrate during construction projects, leaving other materials to bask in the spotlight. The design of the oriented strand boardallows using it the same way as plywood. This mat is then cured, trimmed to size The result is a solid panel with no core gaps that will not delaminate under normal use. PR-N136: Georgia-Pacific Wood Products LLC, ESR-2586: APA – The Engineered Wood Association. Add to quote. [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]. Weyerhaeuser SDS WC S537-0 2 (M) Page 1 of 11 Rev. Relative to their strength, OSB panels are light in weight and easy to handle and install. The layers are created by shredding the wood into strips, which are sifted and then oriented on a belt or wire cauls. 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. A few facts about wood. 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. OSB is now used for about 70 percent of all floor, wall and roof sheathing in North America. 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. 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). Therefore, it can also be used to build pieces of furniture such as tables, shelves, and cabinets. OSB uses the wood from trees that grow quickly and sustainably. 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. It also describes where Performance Rated panels are used and provides updated trademark and performance category information. SKU: 1237973# Category: Plywood. It’s like the turkey loaf of building materials. General use Oriented Strand Board (OSB) conditioned for structural applications in humid environments. Finished panels are available in large dimensions, minimizing the number of joints that can "leak" heat and admit airborne noise. It is manufactured into sheets made up of wood strands, wax, and resin adhesives.Sheets are formed under pressure and heat. 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 … 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. Oriented Strand Board (OSB) is manufactured in wide mats that are formed from cross-oriented layers of thin, rectangular wooden strips. Describes OSB composition, properties, code acceptances, and applications. 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. 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. Twenty years later, the industry was thriving, with over 50 mills producing the product. [9] It has replaced plywood in many environments, especially the North American structural panel market. One-third of the United States … Oriented strand board was created in the late 1970s as inventors extended the use of waferboard. The finished product has properties similar to plywood, but is uniform and cheaper. Are you looking for the reasons why OSB is leaving behind Plywood for construction purposes? Materials other than wood have been used to produce products similar to OSB. Thickness: 6mm, 8mm, 12mm, 18mm, 21mm. [5] Strand board can also be made from bagasse. Alibaba.com offers 1,853 oriented strand board uses products. That's … However, pieces of furniture built using OSB do not require any staining or painting because the design of the board itself can stand alone. It was invented by Armin Elmendorf in California in 1963. Its performance has allowed OSB to gain entry into new markets, It is primarily used as sheathing and underlayment for house construction and remodeling projects. Oriented strand board (OSB) A high-strength, structural wood panel formed by binding wood strands with resin in opposing directions. OSB Basics What is it, you ask? While OSB does not have a continuous grain like a natural wood, it does have an axis along which its strength is greatest. 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. In 2001, oriented strand board surpassed plywood in terms of square footage produced. Oriented Strand Board is a widely used, versatile structural wood panel. 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. You did not provide a valid email address. 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. Kronospan’s Oriented Strand Board (OSB) Superfinish ECO offers a wide range of applications for both interior and exterior use. For nearly three decades, OSB has been a proven performer for many residential and nonresidential applications. Oriented strand board, commonly called OSB, is a type of particle board which is made of carefully positioned strands of wood. 5/16, 3/8, 15/32, 1/2, 19/32, 5/8, 23/32, 3/4, 7/8, 1, 1-1/8. 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. 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. sheathing, oriented strand board (OSB) is helping to shape how the world builds. 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. It was invented by Armin Elmendorf in California in 1963. Oriented Strand Board: Opportunities and Potential Products in China. 08/27/2018 . Most of the world's OSB is made in the United States and Canada in large production facilities. A wide variety of oriented strand board uses options are available to you, Unlike plywood, which is built up from thin layers of wood veneer, OSB consists of strands of wood. 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. Sign In Failed. [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]. OSB is built by pressing smallers strands of wood together with glue and wax in a hot press. 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. 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. OSL is produced by aligning long strands of wood in parallel and binding them together using adhesives, pressure and heat. The mat is formed in a forming line. Safety Data Sheet (SDS) Weyerhaeuser Oriented Strand Board ( OSB) Products including: Sheathing, Edge ™, Wood strips on the external layers are aligned to the panel's strength axis, while internal layers are perpendicular. [8] When tested to failure, OSB has a greater load-bearing capacity than milled wood panels. Although oriented stranded board (OSB) has similar uses to plywood, it has a much coarser finish. That’s why using APA trademarked plywood, oriented strand board and APA EWS glued laminated timbers is the right thing to do. [2] It is now more popular than plywood, commanding 66% of the structural panel market. All Rights Reserved. APA trademarks appear only on products manufactured by APA member mills. OSB and Plywood Differences. 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. This can be seen by observing the alignment of the surface wood chips. OSB is engineered for strength and designed for a variety of applications. Sheathing is considered to be the second most wood-intensive element of wood-frame construction. OSB is also used in furniture production. The mat is made in a forming line. Board Size: 2440mm x 1220mm. 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. 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. 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. Under high temperature and compression, the amalgamate then forms a board shape. It was invented by Armin Elmendorf in California in 1963. 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. Strandboard is a high-density substrate, which blends practical and creative elements together for a variety of uses in residential and commercial applications. The strips are sifted and oriented in belts or wire cauls. Access a complete list of APA publications about OSB in APA's Resource Library. (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. OSB is a material with favorable mechanical properties that make it particularly suitable for load-bearing applications in construction. [3] The most common uses are as sheathing in walls, flooring, and roof decking. 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. 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. 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 … 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. 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. … 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. Additional information Additional information. Oriented Strand Board (OSB) is a man-made product created from wood bits, which are pressed and bound together by adhesive resin and glue. Building codes, the Engineered Wood Association, architects and most builders rate plywood and oriented strand board (OBS sheathing) equal in strength and durability. 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. [10] Industry trade groups assert that formaldehyde emissions from North American OSB are "negligible or nonexistent".[11]. Plywood usually produces pieces of furniture that are dull-looking unless coated with stain or paint. Or use “Square Edge”… OSB looks a lot like a collage of different wood chips. This website uses cookies to improve your experience while you navigate through the website. Phenol-formaldehyde products are considered to be relatively hazard-free. 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. It differs from other wood-scrap products because its long strips of wood are placed strategically rather than randomly. Standard Smartply OSB Panels and Sheets. Add to basket. 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. Oriented strand board (OSB) is an engineered wood-based panel. The board is manufactured from wood flakes, which are dried and blended with resin and wax and pressed into a mat. The leading resource for information about engineered wood products. Urea-formaldehyde is more toxic and should be avoided in home use. © 2018 - 2020 APA – The Engineered Wood Association. Oriented strand lumber (OSL) is a structural material with very consistent properties from one unit to another, and capable of handling large loads. 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. Aspen and other similar woods are cut into long strands parallel to the grain of the wood. Like particle board and MDF, OSB comes from wood shavings. Adjustments to the manufacturing process can affect thickness, panel size, strength, and rigidity. The layers are formed by shredding wood into strips. Oriented strand board (OSB) is a completely different material than the previous two mentioned. We’re not running out of trees. It is primarily used as sheathing and underlayment for … TallerDE2 Architects uses engineered wood to create adaptable Madrid apartment. We form the layers by shredding wood and then joining them together with adhesive. Oriented strand board (OSB) The fabrication, uses, performance and sustainability of oriented strand board (OSB). But why is […] [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. OSB is produced in huge, continuous mats to form a solid panel product of consistent quality with no laps, gaps, or voids. It uses less wood to make more wood products. 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) Oriented Strand Board (OSB) Thickness: Clear: Oriented Strand Board (OSB) quantity. These layers are bonded using wax and resin. The edges of OSB will dramatically expand (>15%) when wet, and takes much longer to return to normal size. The sheets are generally 4 x 8 or 4 x 12 feet in size. 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]). Oriented strand board (OSB) is a completely different material from the previous two mentioned. 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. However, with OSB, the layers are more cross-oriented. Oriented Strand Board is a widely used, versatile structural wood panel. The finished sheet size varies by country. Atau sering disebut dengan OSB, Panel OSB, ( Oriented Strand Board ) yang diterjemahkan sebagai berorientasi-chipboard atau papan untai. 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Basics oriented Strand board ( OSB ) is a completely different material from the previous two mentioned high-density,... Complete list of APA publications about OSB in APA 's resource Library all structural! The number of joints that can `` leak '' heat and admit airborne.. Apa oriented strand board uses the engineered wood Association board was created in the United States and Canada in large production facilities environments... 4 x 8 or 4 x 8 or 4 x 12 feet in size mills... Urea-Formaldehyde is more toxic and should be avoided in home use humid.! Continuous grain like a natural wood, it has a much coarser finish % of the surface chips! Have a oriented strand board uses grain like a natural wood, it can also be used to build of!