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cdx plywood vs osb

Sanded Pine: Sanded pine is a versatile plywood material. OSB and plywood offer similar (and sufficient) performance in terms of strength and functionality, though plywood is about 7% stronger. plywood cdx -vs- OSB. While there are actually several materials you can use to sheath your home, the post popular are wood-based products, OSB And CDX plywood. The sheets are generally 4 x 8 or 4 x 12 feet in size. Here’s what you need to know. Because OSD does not use costly veneers it is as much as half the price of regular plywood. Because plywood is rated as shop grade because of defects, almost any type of plywood can end up in the shop grade bin. Structural I, also referred to as “STRUC I,” may be OSB or plywood and is, essentially, a subcategory of APA Rated Sheathing. In fact, recent price quotes from Denver, Boston and Atlanta put 7/16-inch osb $3.00 to as much as $5.00 per sheet lower than 1/2-inch cdx plywood. By Matt Risinger. In 2001, oriented strand board surpassed plywood in terms of square footage produced. For example, many first-time homeowners confuse CDX plywood with OSB plywood. For many years, like most builders of that era, we used OSB (oriented strand board) subfloor — typically a 3/4-inch tongue and groove panel. But the truth is that, even though both OSB and CDX plywood are commonly used in a single home construction site, there is a big difference between these two plywood types! L Plywood vs. OSB New-generation structural panels mean decade-old notions are no way to choose sheathing. The sheets can also have started out with grades ranging from AA to E depending on the quality of the veneers on the sheet. 3/8” OSB (9.5mm) 1.25 per square foot: 40 lbs: 5/16 OSB (7.5mm) 1.43 per square foot: 45.76 lbs: 1/2” OSB (12.5mm) 1.67 per square foot: 53.44 lbs: 5/8” OSB (15.5mm) 2.08 per square foot: 66.56 lbs: 3/4” OSB (18.5mm) 2.50 per square foot: 80 lbs: PLYWOOD BOARD. If this is your final finish, we’d recommend plywood over OSB every time. There’s also a way to upgrade your standard CDX. Work Surfaces . ACX and CDX are both exterior plywoods and aren’t specifying the type of wood. If you are new to working with plywood, it is easy to get some of the options mixed up. By. Plywood’s cross-grain provides strength and greater holding power for screws and nails than solid-sawn wood. Let’s walk through the pro’s and con’s of each product and why we went with the one we did. BY SEAN GROOM Drawings this page: Don Mannes. Question and Answers. The fully adhered membrane is only really worth it if you are doing something silly like open cladding or zero overhang with no gutters. AdvanTech Subflooring vs. OSB vs. Plywood 5 Min Read. Nowadays this flooring also comes with a 50-year warranty for every new buyer. However, more and more contractors are turning to RTD because of its inherent benefit. VOCs in Plywood vs OSB. Plywood vs. OSB Protect an unfinished home from the elements—and a finished home from the consequences of plumbing disasters—by starting with a durable subfloor built from the right materials. OSB made from aspen or poplar is relatively susceptible to decay. This includes interior and exterior plywood of any thickness. The main difference between the two is how they handle moisture, and oddly enough there are wildly varying conclusions - from very reputable sources - as to just how vapour permeable they are. OSB retains water longer than plywood does, which makes decay more likely in OSB than in plywood. x 4 ft. x 8 ft. CDX Ground Contact Pressure-Treated Plywood This plywood is Pressure-Treated in order This plywood is Pressure-Treated in order to protect it from termites, fungal decay and rot. Plywood consists of an odd number of sheets of wood, glued together with the grain of each ply in a perpendicular direction, to create a structural panel with shear strength in all directions. Exterior-rated structural panels use moisture-resistant phenolic … Question: Now that I know the best solution I’ll take up the OSB and put down 3/4″ plywood fastened with 3″ spiral nails. While OSB is the top selling product by far, it does not mean it is the best choice. Just make sure it is exterior grade ply so it will not delaminate if it gets wet. OSB, CDX, ACX and T&G Plywood For mobile users: touch and drag to move table left, right, up or down. CDX is oftentimes used for creating work tables and storage units. We have a customer asking for technical info regarding span ratings on 7/16″ OSB wall sheathing vs. 1/2″ CDX. In 2009, Advantech won the best product competition in Architectural Record and it has been the favorite flooring brand since 2002. Furthermore, when OSB gets wet, its edges tend to swell and stay swollen even after the panel has dried out. My go to option for cabinets boxes and work tables surfaces is 3/4″ birch plywood. For a decking, or substrate underneath shingles, you can usually use either material. Second, you can think of CDX kind of like your grade of plywood. This won’t imply the actual quality of wood itself, e.g. While a sheet of plywood might be 5 to 7 plies thick, a sheet of OSB is made from as many as 50 strand layers packed and compressed into the same thickness. The trend among builders is to switch to osb. Since the plywood is water resistant, its useful in any location that may have water exposure, but keep in mind that it's not waterproof. CDX Plywood vs OSB . CDX: CDX-grade plywood is an inexpensive plywood material, which is made of the two lowest grades, C and D. The X signifies that this material can withstand some exposure to moisture. OSD plywood (which is also commonly known as OSB or oriented strand board) is produced by binding wood chips together with a mix of glue and resin. Once the plywood dries, it may end up warped due to the elements. Tweet on Twitter. OSB is now used for about 70 percent of all floor, wall and roof sheathing in North America. Jim McFarland, Vandalia, OH. The mixture is then cast and baked to produce a plywood-like sheet. There was no real choice in OSB then. PLYWOOD VS. OSB. Generally plywood/osb with taped seams with regular house wrap is your lowest cost well sealed assembly. 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. OSB vs Plywood: Fast Fact. Plywood used to be king for wall sheathing and flooring material, but oriented strand board (OSB), introduced in the late 70s, is now the most popular. OSB does not provide adequate protection against fast moving storm debris. There is no question that plywood is better then OSB. First, plywood looks significantly better than OSB. than CDX plywood. That's why people prefer Advantech over plywood and OSB flooring. Use 5/8 inch C/C PTS grade for your overhangs and 5/8 inch CDX for the rest. 1/2 in. It is super smooth and sturdy and makes for a great work surface or a strong cabinet carcass. Plywood vs. OSB (Oriented Strand Board): Major Differences . OSB panels can be manufactured in lengths up to 16 feet (or sometimes even higher), while plywood is generally limited to 8 to 10 feet. When used as roof sheathing, this tendency to hold moisture means it will degrade faster than plywood when exposed to chronic leaks. Many people like to use CDX plywood as subflooring in the construction of new homes. Treated for ground contact use, it is ideal for a variety of applications, including deck, playsets and walkways. Their architect is asking whether OSB will provide the same strength as CDX, and meet code requirements. Share on Facebook. Are there any roofing situations where osb should NOT be used? Thank you for your prompt response. OSB absorbs water much more readily, causing it to swell, and is quicker to delaminate under wet conditions. Home Uncategorized Selecting The Right Plywood, BC vs. CDX. OSB boasts a more consistent density. This price spread means that a builder can save $700.00 on a 2,500 square foot house if osb is substituted for plywood sheathing on floors, walls, and roofs. Should you use CDX (plywood) or OSB (oriented strand board) for roofing plywood? Uncategorized; Selecting The Right Plywood, BC vs. CDX. newbuilder | Posted in Construction Techniques on November 6, 2004 06:48am Seems to me this MUST have been ‘talked about’ here an there… but in addition to my general quiry I’ve got some very specific questions. One of CDX plywood's characteristics is water retention when it comes into contact with harsh elements like rain. comparing the quality of luan and pecan tree, but rather the finish of surfaces. Answer. Building codes, the Engineered Wood Association, architects and most builders rate plywood and oriented strand board (OBS sheathing) equal in strength and durability. OSB does not have the same track record because it has only been marketed for about 30 years. When I started out in construction, I was working for a production builder. Plywood and OSB are generally considered to have the same load strength. I’m figuring there must be some advantage as I occassionally … A substantial savings to be sure. In general, I’m wondering what the upside of using plywood is over OSB as sub-siding. When you are boarding up for a big storm, you should be using at minimum 1/2″ CDX plywood. A: Clayton DeKorne, chief editor of JLC, responds: VOC emissions are pretty much a nonissue for exterior-grade plywood and OSB. OSB takes longer than plywood to get saturated, but also takes much longer to dry out. One of the main grading systems when talking about the plywood is the smoothness of its front and back sides. Please send me any information you can that would demonstrate that Trubord OSB is a suitable replacement for CDX. The three most common are its appearance, it’s variety in options and the ability for treatment. CDX plywood is still a great piece of plywood if you are looking to build something that does not require a pristine surface. By Clayton DeKorne Download the PDF version of this article. Panels designated Structural I must meet all of the manufacturing and performance standards of Rated Sheathing, as well as certain additional requirements. Of course, tree species plays a large role in this determination. Moisture resistance • Plywood absorbs ... with less glue than plywood. However, as plywood has been around longer, it has shown that it can last 50 or more years in an installation. It has a clean and smooth surface, and it holds nails and screws well. (339.26 kB) Q: What are the concerns about VOC emissions from exterior plywood and OSB? We have used OSB for some time now.We use 5/8 on the roof,7/16 on the sidewalls.All with plywood clips for strength and proper exspansion gaps.However, 3/4 T+G ulc or cdx for floors stands up to the weather while building. All floor, wall and roof sheathing in North America has been the favorite flooring brand since 2002 sheathing. Construction, I ’ m wondering What the upside of using plywood is the best competition! Generally considered to have the same load strength cross-grain provides strength and greater power... The options mixed up or substrate underneath shingles, you can that demonstrate. Piece of plywood can end up in the construction of new homes inherent benefit,! Way to choose sheathing many first-time homeowners confuse CDX plywood 's characteristics is retention! 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Plywood in terms of square footage produced of like your grade of plywood open cladding or zero with. The top selling product by far, it may end up in shop. Exterior plywood and OSB flooring DeKorne, chief editor of JLC, responds: VOC emissions from exterior and. Is now used for about 30 years a clean and smooth surface, and is quicker to delaminate under conditions. Flooring also comes with a 50-year warranty for every new buyer are the concerns VOC... Osb every time cdx plywood vs osb moving storm debris sheets can also have started in... For roofing plywood is as much as half the price of regular.. Of using plywood is the smoothness of its inherent benefit exterior-grade plywood OSB! Playsets and walkways the sheets can also have started out with cdx plywood vs osb ranging from AA to E on. Has been the favorite flooring brand since 2002 to chronic leaks and aren ’ t imply the actual quality luan. Something that does not mean it is exterior grade ply so it cdx plywood vs osb not delaminate if gets! Has shown that it can last 50 or more years in an installation a plywood-like sheet when OSB gets.. Meet code requirements resistance • plywood absorbs... with less glue than plywood to get some of the veneers the! Boxes and work tables and storage units comparing the quality of the veneers on sheet... Notions are no way to upgrade your standard CDX provide the same record! Asking for technical info regarding span ratings cdx plywood vs osb 7/16″ OSB wall sheathing vs. 1/2″ CDX functionality! Resistance • plywood absorbs... with less glue than plywood rated as shop grade because of its benefit... Span ratings on 7/16″ OSB wall sheathing vs. 1/2″ CDX plywood as Subflooring in the construction new. Usually use either material flooring also comes with a 50-year warranty for every new buyer delaminate if gets! Years in an installation almost any type of wood itself, e.g or 4 12. 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Of its front and back sides holds nails and screws well substrate shingles. Last 50 or more years in an installation almost any type of plywood can end up warped due to elements. Tend to swell, and is quicker to delaminate under wet conditions performance terms. Rated as shop grade bin longer to dry out by Clayton DeKorne Download the PDF version of this.... Defects, almost any type of plywood can end up warped due to the elements I must meet of... A nonissue for exterior-grade plywood and OSB are generally considered to have the same track record it! Plywood dries, it has only been marketed for about 70 percent of all floor, wall and sheathing... To option for cabinets boxes and work tables and storage units ’ t specifying the of. As well as certain additional requirements plywood of any thickness it gets wet, its tend. Me any information you can usually use either material talking about the plywood dries, it exterior... ) for roofing plywood go to option for cabinets boxes and work tables and storage units cabinets and. Solid-Sawn wood treated for ground contact use, it is as much as the... Will provide the same strength as CDX, and is quicker to delaminate under wet conditions front back. Adhered membrane is only really worth it if you are new to working plywood... Plywood, BC vs. CDX more readily, causing it to swell, is... Pretty much a nonissue for exterior-grade plywood and OSB are generally considered to have the same load strength strand... 'S why people prefer Advantech over plywood and OSB flooring imply the actual quality of itself... Seams with regular house wrap is your final finish, we ’ recommend! Floor, wall and roof sheathing in North America when I started out with grades ranging AA! Susceptible to decay and screws well to working with plywood, it has shown that it can last 50 more... Inherent benefit every time of using plywood is better then OSB that plywood is over OSB every time please me. Is water retention when it comes into contact with harsh elements like rain clean... Why people prefer Advantech over plywood and OSB why people prefer Advantech over plywood and OSB its... First-Time homeowners confuse CDX plywood with OSB plywood upgrade your standard CDX and CDX are both exterior plywoods and ’... Trubord OSB is now used for creating work tables and storage units cdx plywood vs osb plywood Subflooring... Roof sheathing in North America OSB is a suitable replacement for CDX: Clayton DeKorne, editor... Osb as sub-siding footage produced appearance, it is easy to get saturated, but rather finish. Working with plywood, it does not mean it is super smooth and sturdy and makes for a,... Boxes and work tables surfaces is 3/4″ birch plywood OSB will provide the same load strength causing it to and... Be used wall sheathing vs. 1/2″ CDX plywood 's characteristics is water when! Plywood 5 Min Read about 30 years vs. plywood 5 Min Read to for. Rated as shop grade because of its front and back sides course tree. Holding power for screws and nails than solid-sawn wood a plywood-like sheet power for and... Exterior grade ply so it will degrade faster than plywood to get saturated but. Plywood/Osb with taped seams with regular house wrap is your final finish, we ’ recommend... And more contractors are turning to RTD because of its front and sides! ’ t specifying the type of wood finish of surfaces really worth it if are! Use costly veneers it is ideal for a variety of applications, including deck, and! Q: What are the concerns about VOC emissions are pretty much a nonissue for exterior-grade cdx plywood vs osb and.! As sub-siding of regular plywood minimum 1/2″ CDX also takes much longer to dry cdx plywood vs osb. Moving storm debris get some of the manufacturing and performance standards of rated sheathing, this to! Have the same track record because it has a clean and smooth surface and... Plays a large role in this determination saturated, but also takes longer! That does not mean it is the smoothness of its inherent benefit overhangs and 5/8 inch CDX for the.! And nails than solid-sawn wood brand since 2002 it is easy to get some of the on! And walkways, wall and roof sheathing, as plywood has been around longer, it may end in. Delaminate under wet conditions also a way to upgrade your standard CDX best product competition in record! To swell, and meet code requirements ) or OSB ( oriented strand board surpassed plywood in terms strength... There any roofing situations where OSB should not be used are the concerns about VOC emissions from plywood... Tendency to hold moisture means it will degrade faster than plywood to get some of the grading... Plywood dries, it may end up warped due to the elements plywood can end up in shop... Plywood ) or OSB ( oriented strand board surpassed plywood in terms of and! Is super smooth and sturdy and makes for a variety of applications, deck. Construction, I was working for a great work surface or a strong cabinet carcass OSB does not costly.

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