What is the flame spread classification for OSB? Although standard plywood sheet sizes range from 1/4 to 3/4 inch thicknesses, it's actually slightly thinner. Structural wood sheathing shall be extended to lap the sill plate and nailed to the sill plate using a 4-inch on-center nail pattern along the edges. CLT offers design flexibility and low environmental impacts. Confirm with the local building department if the house is in a hurricane-prone region and if local requirements exceed those of the IRC. This goes for all other types of engineered wood panels as well. When wet, OSB swells and can cause roofing materials or exterior finishes to buckle. First, determine the OSB length. swagtron serial number. 4' x 9' panels available in select colors. On sheathing products, the piece count is typically stenciled on the side of the unit. Wrong The flashing tape was not installed with a roller to completely adhere it to the OSB sheathing surface. Something that caught my attention in recent years was the interest that OSB boards have aroused in the world of decoration. Hurricane clips or framing anchors are required on all rafter-to-wall connections. Ideal for use in residential and light commercial construction, with the span, impact resistance and uniformity to keep your jobs running smoothly. To ensure success for the complete wall system (from cladding to dry wall), please view the Building American Solution Center Guides on the following topics: Also see if local building codes have specific requirements or ask the local building department. k%rF);J):5OpPgI59dROhydDM4L5p^m}o: Product Specifications Available Sizes: 47-7/8 x 95-7/8 panels (Longer panels and custom thicknesses are also available. Tight coverings prevent air circulation and when exposed to sunlight, may promote mold or mildew. Resources and Uses, What is HDF or high density boards: characteristics and uses, Three-ply Plate: Composition, Characteristics and Uses, Lined solid wood boards: characteristics and uses, The largest floating wind turbine in the world will be installed in Portugal, Glass blocks with integrated solar cells to generate renewable energy, Geothermal panels for garages and tunnels in Switzerland, Historic EIB decision: stop funding fossil fuels, The first sustainable aviation fuel production plant in the Netherlands, OE 35, the 826-ton giant that generates electricity from ocean waves, The Netherlands builds the worlds first floating solar power station on the sea, Portugal will have the largest floating photovoltaic solar project in Europe, HelioTube, a solar concentrator with recycled plastics that halves the costs of solar thermal energy, Ranking of solar energy producing countries from 1983 to 2018. Access a complete list of APA publications about OSB in APA's Resource Library. Wrong The vinyl siding at this gable was installed over rigid foam instead of wood sheathing and neither had the structural strength to resist hurricane wind pressures. Install structural sheathing (plywood/OSB) in exterior walls to ensure the building will resist design wind pressures. Other engineered wood panel types, such as particle board or OSB, contain a much higher percentage of adhesive resin, and since these resins are heavier than wood, these panels tend to be significantly heavier than plywood. We will see them as part of furniture, wall covering, shelves, counters, tables . Weight. Its Euroclass fire reaction values standardized without the need for tests are standardized ranging from: D-s2, d0 to D-s2, d2 and Dfl-s1 to E; Efl. Span Rating 3/8 7/16 15/32 1/2 19/32 5/8 23/32 3/4 7/8 1 1-1/8 . Select the appropriate thickness for wood structural sheathing panels. Install water resistive barrier (WRB) on the structural sheathing. scottsdale az obituaries august 2021; steve biko death scene. Sign In Failed. Wind loads are the most common loads that shear walls are designed to resist. FEMA P-499, Home Builder's Guide to Coastal Construction: Technical Fact Sheet Series, Right Correct fasteners and nailing pattern for structural wall sheathing, APA Building for High Wind Resistance in Light-Frame Wood Construction. It also describes where Performance Rated panels are used and provides updated trademark and performance category information. Softwood plywood is normally the cheapest plywood. The thorn-groove line includes models 2500x1250, 2500x625 and a unique plate 2485x610 - it is difficult to find analogues in serial models. Native New Yorker Meg Jernigan has lived all over the United States, nurturing gardens in the Northeast, the Mid-Atlantic, the West and the deep South. This type of board surpassed the defined use during its conception and became one of the most versatile options. Make sure that the gable end wall sheathing is adequate (minimum requirement is for 3/8-in. Well, the truth is that for a long time. Color HTML / CSS Color Name Hex Code #RRGGBB Decimal Code (R,G,B) lightyellow: #FFFFE0: rgb(255,255,224) lemonchiffon: #FFFACD: rgb(255,250,205) lightgoldenrodyellow You also have the option to opt-out of these cookies. Oklahoma State University Extension: Oriented Strand Board as a Building Material, U.S. Department of Energy: Structural Sheathing (Plywood/OSB) in Exterior Walls, SBC Magazine: Strength Axis in Wood Structural Panels. Exposure 1 rated for limited exposure. My house was built for the government in WWII. OSB is the most-used sheathing material for new roofs and roof replacements. Ask your questions about roofs & roofing on our new Roofing Forum! The roof sheathing must be at least 3/8-in. Baltic birch plywood is used mostly for furniture-making and cabinetry. However, they are immune to insects in the larval cycle, such as woodworm. In no case should the OSB board, not even the OSB / 3 and OSB / 4 types, be submerged or come into direct contact with water. Proper anchorage or connection prevents the shear walls and, in turn, the rest of the structure from laterally racking, displacing, or overturning during a high-wind or seismic event. Plywood Whether you need plywood with high-performance characteristics, lightweight properties or exceptional aesthetic qualities, we have a solution for you. If the door opens into the living room then the side and top edge adjacent to the door handle will be green the same as the living room side. Plywood dries more quickly than OSB. The rating stamps for plywood and oriented strand board (OSB) lumber are provided. An OSB board consists of several layers of glued wood chips to which pressure is applied. The Performance Category is consistent with the panel thickness used in the U.S. model building codes. 2018 edition of code establishing a baseline for existing building retrofits to reach appropriate safety levels under new construction requirements covered in other ICC codes. For exact code language, refer to the applicable code, which may require purchase from the publisher. In an OSB panel the two exterior surface layers of wood strands are oriented parallel to the long axis of the panel. SYMBOL Tab Bar Type: For th selected Bar Type, you may customize the color and thickness of the bars. Oriented Strand Board (OSB) A versatile engineered structural panel often used for floor decking and wall/roof sheathing. In this example, the length is 30 inches. Coniferous woods are used mainly, among which are pine and spruce. The recommended minimum thickness of OSB panels for timber-frame walls is 12mm when the cells in the supporting frame measure up to 62.5cm on a side, and 15mm for frame members spaced up to 83.3cm apart. And then some. Max-Rib is a low profile (3/4-inch) panel that is equally well suited for residential roofing and post frame applications. Rectangular wood strands blended with thermal-set, waterproof adhesives are arranged in cross-directional layers. See Baltic Birch Plywood at the Home Depot. Approximately chips or particles should be between 5-20 mm wide, 60-100 mm long and their thickness should not exceed one millimeter. Phenolic adhesives offer the greatest resistance to moisture. Nominal panel thickness (Table B) assists in calculation of geometric cross-sectional properties. Schluter ALL-SET is a specialized, modified thin-set mortar for use as a bond coat within tile assemblies that is optimized for use with Schluter membranes and boards. 5/16, 3/8, 15/32, 1/2, 19/32, 5/8, 23/32, 3/4, 7/8, 1, 1-1/8. OFFICE of The APA publications desk number is 1-253-565-6600 and their extensive literature is available at apawood.org. In large-scale commercial construction, OSB has largely replaced softwood plywood in wall sheathing, roof sheathing, and subflooring applications. For the curious - 7/16" OSB has a span rating of 24/16 and with supports every 24 inches is good for a roof live load of 40 psf (pounds per square foot) with a 10 psf dead load. No, span ratings for similar thicknesses are the same. Table 1: OSB - Thicknesses and Weights OSB (CSA O325) Thickness 1220 x 2440 mm (4 x 8 L) Panel Weight mm. Interior carpentry and furniture shelves. Roofing Reference and Education A directory of all the roofing magazines you can find online, our list of recommended roofing reference books, historic roofing resources, roofing education providers. A publication highlighting recommendations that contributeto improved overall performance in the structural shell and focus on good connection details to tie together exterior walls, roofs and floors. 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. Use of this site is subject to certain Terms Of Use.. Local store prices may vary from those displayed. The following authors and organizations contributed to the content in this Guide. Ensure shear walls provide lateral stability. Older timber is spared. Pressure-Treated Plywood: This is usually a softwood plywood that has beenpressure-treatedto help it resist decay caused by fungus, insects, and other organisms.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'roofonline_com-leader-3','ezslot_15',888,'0','0'])};__ez_fad_position('div-gpt-ad-roofonline_com-leader-3-0'); Southern yellow pine is particularly well-suited for pressure treating, and most pressure-treated plywood is made from southern yellow pine. The final manufacturing step is pressure and heat curing. The hardwood veneers improve strength, stability, and impact-resistance. The grade stamp on an OSB panel includes information on the applications for which its appropriate; its thickness; and how wide the spacing should be between supports, like studs and the strength axis. (Source: APA Builder Tip U450: Storage and Handling of APA Trademarked Panels). What is the difference between Structural 1 and Exposure 1 panels? The cost per panel depends mostly on thickness, ranging from 1/4-inch to 23/32-inch. It is a very common and common product, at least in North America and Europe. %%EOF 2023 Louisiana-Pacific Corporation. In addition to elevated prices, acute shortages have . Designed by Elegant Themes | Powered by WordPress. endstream endobj startxref The use of MDO for sign boards is very common. In the interior OSB panel layer or "core layer" strands are oriented either randomly or across the short axis of the OSB panel. Roof Online participates in the Amazon, Home Depot, and Roofle affiliate programs and may earn commissions from purchases made through links on our website. R602.10.1.3 Spacing of braced wall lines. LifeProof flooring can be installed over standard OSB and plywood underlayment and many existing floor types. When using a mechanical hot air welder there are practical slope limitations. In this sense, the fact that they can be plastered, painted or varnished usually stands out. View More Details. OSB Basics Oriented Strand Board (OSB) is a widely used, versatile structural wood panel. 48/24), the first number is the maximum recommended center-to-center spacing for supports in inches when the panel is used for roof sheathing with the long dimension across supports. Please call (800) 964-6310 for more info.) It is also called LDF (low density fiberboard). You can use 7/16-inch thick OSB sheets without support for areas where the snow load is 30 pounds per square foot because it's durable and maintains building integrity much longer than other sizes. OSBs are a strong and good alternative to plywood. Building codes in some areas require that the best OSB for walls is 1/2 inch thick if stucco will be applied. Next, determine the OSB width. Video showing a technique for airtight sheathing installation on exterior walls using foam gasket strips. The pressing parameters varied in some limits depending on the board thickness and type. Is there a difference between span ratings for OSB and plywood? Its manufacturing process can be considered more environmentally friendly or responsible than the manufacture of plywood. They are there to mark what type it is. what does the person and plus sign mean on facebook; accenture past ceos; gus malzahn record vs alabama; marshall high school basketball; 1988 fresno state baseball roster To be more specific: What are the OSB boards for? OSB wall sheathing comes in thicknesses ranging from 1/4 inch to 1 1/8 inch, but some of those dimensions are hard to find. Key recommendations (taken from the gable end wall bracing retrofit section of the IBHS High Wind Standard : Minimum requirements for use of the prescriptive methods detailed in IBHSs Gable End Wall Bracing Retrofit Section are as follows: Cases that are not covered in this retrofit guidance require that a licensed professional engineer design a gable end bracing system that will meet wind forces appropriate for the location. Consult a professional engineer for specific applications. Thickness. The chart represents guidline values but each project is to be treated individually. OSB is produced in huge, continuous mats to form a solid panel product of consistent quality with no laps, gaps, or voids. The International Residential Code (IRC) requires exterior building components and their attachments to be capable of resisting design wind-pressures. Overall: 0.04-0.03%. For the OSB to be considered what it is and to have the properties it should be, chips of sufficient size must be used. OSB boards can be easily purchased from any lumber company. Specifications. Softwood plywood comes from coniferous trees, primarily fir, pine, or spruce. Blue Ribbon OSB sheathing panels contain no core voids, knots or splits and provide a quality base layer for wall and roof sheathing applications. They can be attacked by xylophagous fungi and also by some insects such as termites in certain particularly favorable environments. The following table compares a 12 mm thick OSB in spruce and phenolic wood glued with wild pine plywood: In general, 4 categories are established depending on the requirement of their use (standard EN 300). Latex paints are not recommended. Each type of queue can add properties to the card. The ceiling diaphragm must be a minimum of 1/2-in. For example. Cover the stack loosely with plastic sheets or tarps. The width is measured to be 20 inches. OSB built for load-bearing strength in construction. Among the worlds most popular OSB sheathing products, offered in a variety of panel sizes and performance categories. Most OSB suppliers have a load/span table giving a guide to the spacing of timbers for different thicknesses. Edges also represent the weakest point in this respect. See Pressure-Treated Plywood at the Home Depot.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'roofonline_com-leader-4','ezslot_16',887,'0','0'])};__ez_fad_position('div-gpt-ad-roofonline_com-leader-4-0'); Softwood Plywood: This is the type of plywood most commonly used in construction. The APA Standard plywood weights are not weights for actual products and tend to be somewhat heavier than the weights of any real softwood plywood you will find.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'roofonline_com-leader-2','ezslot_14',877,'0','0'])};__ez_fad_position('div-gpt-ad-roofonline_com-leader-2-0'); A 4 x 8 sheet of 1/2-inch APA Standard Plywood wouldweigh 48 lbs. Because of this and the fact that the southern yellow pine usedis much heavierthan other wood species used in construction, pressure-treated plywood tends to be a heavy plywood. drywall, 3/8-in.-thick plywood, or plaster installed over wood lath. See Figure 1. wood structural panels on both wall faces. This stamp is your assurance that the product is manufactured in accordance with the APAs rigorous program of quality inspection and testing. OSB-3 and OSB-4 are the ones with the greatest possibilities you will find. Wood OSB, from English Oriented reinforcement plank (Oriented chipboard), it is a very versatile and high performance board whose main use is aimed at civil construction, where it has replaced the plywood mainly in Europe and the United States. As for thicknesses: 6, 10.18 and 22 millimeters. This puts less pressure on forest resources, that is, greater use is made of the tree. To prevent the introduction and spread of plant pests, ISPM 15: International Standards for Phytosanitary Measures, requires that internationally shipped solid wood pallets be debarked, treated with heat or fumigated with methyl bromide, and marked with a seal of compliance. One of the industry's most popular mortars. Another type of classification is conditioned by type of glue used joining wood chips. This does not mean that they cannot be purchased in different sizes or even OSB when cut. 0.315 in. The plywood weights we give were calculated using the product data sheets or manufacturer specifications of actual, specific wood panel products, and in most cases our plywood weights are the average of product weights from more than one manufacturer. Report containing 37 fact sheets that provide technical guidance and recommendations concerning the construction of coastal residential buildings. OSB can be painted with an oil-based paint. endstream endobj 15 0 obj <>stream Minimum of 3/8-in. What these defects produce is that at certain points the plaque is weaker. given in our weight tables are meant to provide a general idea of typical engineered wood panel weights, and should not be used if precise values are needed for critical engineering calculations. 250 125 and 250 62.5 centimeters are the most common measurements. Thickness: 0.07-0.05%. Fire resistance. Plain sheets OSB-3 from Ultralam have dimensions of 2500x1250, 2800x1250, 2440x1220, 2500x625. Sanding of the wood, which takes place during manufacturing, can remove up to 1/32 inch of material from the plywood sheet. Durability against fungi and insects. 0 Building experts consider oriented strandboard (OSB) and plywood to be equally effective as wall sheathing, roof decking and floor underlayment. There is a different series of colors and marks for each thickness, as well as marking it as being OSB. Settings Open the Settings menu to access different options for your chart. 2) Product suggestions may not be suitable for all types of base materials. Right - A drywall gasket is installed along the top plate before installed drywall. For disaster resistance, comply with the requirements defined by Fortified Home (Fortified Technical Resources). Panels classified as Exposure 1 are intended to resist the effects of moisture on structural performance as may occur due to construction delays, or other conditions of similar severity. This category only includes cookies that ensures basic functionalities and security features of the website. Suitable for load bearing applications in construction. The latex formula is ideal for indoor applications where fast dry is important. Easy water cleanup. hKo8 Panels designated Structural I must meet all of the manufacturing and performance standards of Rated Sheathing, as well as certain additional requirements. Because of the extremely high resin content, MDF tends to be one of the heaviest types of engineered wood panels.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'roofonline_com-mobile-leaderboard-1','ezslot_17',885,'0','0'])};__ez_fad_position('div-gpt-ad-roofonline_com-mobile-leaderboard-1-0'); A typical 4 x 8 sheet of 1/2-inch MDF weighsaround 69 lbs. The leading resource for information about engineered wood products. A red opaque object A. reflects red light only. Does not have nodes, gaps or other types of weaknesses such as plywood or solid wood. Just another site osb thickness color chart hbbd``b`j~@q3`N,= R`XAH6Hd' 5@Bv#LF;? Plywood is slightly more expensive than OSB, making it a less economical choice for large projects. 20-Year transferable limited warranty. If the fastener does not completely set, use the next higher load and repeat the process. Go ahead and call it if you have any questions! Available Performance Categories: from 3/8 to 1-1/8* Gable end wall bracing is also a requirement for the silver designation in theFortified Home program conducted by the Insurance Institute for Business and Home Safety (IBHS) offers guidance, best practices, and voluntary construction standards and programs for building in disaster-prone areas including hurricane and high-wind zones. Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. Nailing of wall sheathing shall be increased to 8d ring shank or 10d nails on 4 inches on center along the edges and 6 inches on center in the field. Features. Virtually every part of small trees grown on sustainable tree farms is used, meaning very little waste is produced in OSBs manufacturing. It was invented by Armin Elmendorf in California in 1963. A typical 4 x 8 sheet of 1/2-inch Baltic Birch Plywood weighsaround 55 lbs. Describes OSB composition, properties, code acceptances, and applications. The IBHS Fortified Home program includes the following additional above-code guidance and requirements for structural sheathing. PR-N612: Norbord Inc./West Fraser Timber Co. Ltd. plywood or OSB or 3/4-in. Layers are consolidated under extreme pressure, creating a stiff, strong and durable panel. Finished panels are available in large dimensions, minimizing the number of joints that can "leak" heat and admit airborne noise. $2.99 /sq.ft. Moisture resistance. Nominal Thickness. (Source: Boxes, Crate and Reel Manufacturing, www.PerformancePanels.com). The rough side provides traction for workers installing a roof and has no significance when the OSB is used as wall sheathing. Plywood weight is determined by the length, width, and thickness of the panel, as well as the wood species and the types and amounts of adhesives, primers, and sealants used to make the plywood. He is also the editor of the Roof Online website. @t)@+@YC*MAsEC o YP2$*$i4B;I{./+_tte B::BonU!_!_7sf |1$>W|z! *f}hgXn/mOQ ezK]]g7Ye5iX}~[Eu;e@n&&x5?T[]?=>)o.vp9d)m1Qa].sq? rr L6h#X Dimensional stability. Blue edge seal helps prevent moisture intrusion, Can also be used in wall sheathing applications, 3-11 78 (1.216 m) x 7-11 78 (2.435 m) sized for 4 x 8, 3-11 12 (1.206 m) x 7-11 78 (2.435 m) sized for 4 x 8, 3-11 1316 (1.162 m) x 7-11 78 (2.435 m) sized for 4 x 8, 3-11 1316 (1.162 m) x 8-11 78 (2.740 m) sized for 4 x 9, 3-11 1316 (1.162 m) x 9-11 78 (3.044 m) sized for 4 x 10, 3-11 12 (1.206 m) x 8-11 78 (2.740 m) sized for 4 x 9, 3-11 12 (1.206 m) x 9-11 78 (3.044 m) sized for 4 x 10. 2018and2021 International Residential Code (IRC). %PDF-1.6 % MDF: Medium Density Fiberboard is produced from wood scraps left over from other wood product manufacturing activities. Nominal thickness (in.) Voluntary Product Standard PS2. Covers and / or ceilings. Consider our other OSB specialty products designed specifically for floor applications (LP, LP NovaCore Thermal Insulated Sheathing. Interior shear walls must be fully sheathed including areas above or below wall openings with minimum 7/16-in. Whenever possible, store panels under a roof. Finishes, paints and / or varnishes can be sanded and applied, both water-based and solvent-based. However, bear in mind that those numbers do not actually represent the actual thickness of the plywood. The U.S. Department of Energy has determined that 7/16-inch sheathing is the minimum appropriate thickness for structural wall sheathing with an exception for gable end walls, where the minimum thickness is 3/8 inch. 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 . After the trees are harvested, the logs are washed and debarked before being fed into a flaking machine that turns the wood into strands. PERFECTION SHINGLE LAP (FIBER) Length. All rights reserved, Blue Ribbon OSB Lifetime Limited Warranty USA, Wood and Wood Products Safety Data Sheet (English/Canada), Wood and Wood Products Safety Data Sheet (English/US), Wood and Wood Products Safety Data Sheet (French/Canada), Wood and Wood Products Safety Data Sheet (Spanish/Mexico), Installation: APA Engineered Wood Construction Guide-Walls, Span and exposure rated sheathing with dimensional stability, Quality base layer for wall sheathing applications. &o_a-~K9SY For instance, while plywood is typically 90% to 95% wood, OSB might only contain 80% wood. Determine the appropriate fastening schedule for the structural sheathing. Quality builders rely on Weyerhaeuser OSB panels for good reason. _ 7z>Ggh_eZV[I6N-6E:&$cz^0RS"'9 Span rated sheathing 24/16 (Roof/Floor on center spacing) Skid resistant on one side. Right The coated OSB sheathing can take the place of house wrap to serve as the weather-resistant barrier because it is sealed at the seams with a paint-on flashing. The color may vary depending on the wood used, the type of adhesive and the manufacturing process between light yellow and brown. Softwood plywood weight is further reduced by the presence of unfilled voids within the inner plies. All rights reserved. If not, sheathing must be added that meets these minimum requirements as part of the retrofit. There is a different series of colors and marks for each thickness, as well as marking it as being OSB. This non-sag, non-slump medium bed mortar is designed for most large format porcelain, ceramic and natural stone tile. Construction of stands for fairs and exhibitions. What does the stamp on my OSB panel mean? Widely distributed, LP OSB products are available when you need them. CDX plywood, the most common plywood used for roof sheathing,is a grade of softwood plywood. Jeff_Clarke | Aug 10, 2008 04:49pm | #18. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Consult with the equipment manufacturer on the performance of the individual machine. Determine the amount and location of braced walls (shear walls) required at each story of the house. Sheathed in 1/4" plywood. MDO: Medium Density Overlay is a type of exterior plywood specifically designed to be painted easily. As for thicknesses: 6, 10.18 and 22 millimeters. However, we can also find other types of OSB boards (which will always be included in some of the previous classes) that are sold with some additional features or modifications. Strengthen the vertical framing members of the gable end with the use of retrofit studs. $@%f:y_T?aW$RL[_Til @P Y\MNDr6Jib$%Rk+jj]LD7JB=F,s.;-=+y#6uK1C-hRTf%5=::MC`pzB*==nPAja/xzgz Oriented Strand Board is a widely used, versatile structural wood panel. This appearance may be inconvenient for use in decorative applications, but the opposite has happened. (See IBHSs Gable End Wall Bracing Retrofit Section. ), Make connections between horizontal braces and retrofit studs using metal straps and fasteners. Start with the lightest load available. Lightweight yet very strong, with superior acoustic, fire, seismic and thermal performance, CLT is also fast and easy to install, generating almost no waste onsite. You may contact LP at 1-800-648-6893. Still standing proud. endstream endobj 11 0 obj <> endobj 12 0 obj <> endobj 13 0 obj <>stream Structural Sheathing (plywood/OSB) in Exterior Walls, Install structural sheathing in exterior walls to resist wind pressure. 37 0 obj <>stream Densglass Technical Guide - Gypsum, Wood, Lumber, OSB Boards Because it uses leftover wood material, OSB tends to be cheaper than plywood, and it is more uniform since it has none of the knots and other defects that may be present in plywood. 2018 - 2023 APA The Engineered Wood Association. (See code for additional requirements and exceptions.). Common thicknesses for sheathing panels are: 5/16 inch (7.9 mm), 3/8 inch (9.5 mm), 7/16 inch (11.1 mm), 15/32 inch (11.9 mm), 1/2 inch (12.7 mm), 19/32 inch (15.1 mm), 5/8 inch (15.9 mm), 23/32 inch (18.2 mm), and 3/4 inch (19.0 mm). Bolt the shear wall hold-down connector through the stud.
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