BY SEAN GROOM Drawings this page: Don Mannes. Please send me any information you can that would demonstrate that Trubord OSB is a suitable replacement for CDX. Question and Answers. PLYWOOD VS. OSB. 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. Plywood’s cross-grain provides strength and greater holding power for screws and nails than solid-sawn wood. Plywood vs. OSB (Oriented Strand Board): Major Differences . Moisture resistance • Plywood absorbs ... with less glue than plywood. 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. By Clayton DeKorne Download the PDF version of this article. Tweet on Twitter. VOCs in Plywood vs OSB. We have a customer asking for technical info regarding span ratings on 7/16″ OSB wall sheathing vs. 1/2″ 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. 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. Are there any roofing situations where osb should NOT be used? By Matt Risinger. Home Uncategorized Selecting The Right Plywood, BC vs. CDX. Exterior-rated structural panels use moisture-resistant phenolic … 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. L Plywood vs. OSB New-generation structural panels mean decade-old notions are no way to choose sheathing. 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. comparing the quality of luan and pecan tree, but rather the finish of surfaces. In 2001, oriented strand board surpassed plywood in terms of square footage produced. A: Clayton DeKorne, chief editor of JLC, responds: VOC emissions are pretty much a nonissue for exterior-grade plywood and OSB. Their architect is asking whether OSB will provide the same strength as CDX, and meet code requirements. When I started out in construction, I was working for a production builder. The sheets are generally 4 x 8 or 4 x 12 feet in size. OSB and plywood offer similar (and sufficient) performance in terms of strength and functionality, though plywood is about 7% stronger. 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. Of course, tree species plays a large role in this determination. In 2009, Advantech won the best product competition in Architectural Record and it has been the favorite flooring brand since 2002. OSB is now used for about 70 percent of all floor, wall and roof sheathing in North America. Panels designated Structural I must meet all of the manufacturing and performance standards of Rated Sheathing, as well as certain additional requirements. In general, I’m wondering what the upside of using plywood is over OSB as sub-siding. If you are new to working with plywood, it is easy to get some of the options mixed up. Let’s walk through the pro’s and con’s of each product and why we went with the one we did. For example, many first-time homeowners confuse CDX plywood with OSB plywood. OSB does not have the same track record because it has only been marketed for about 30 years. Work Surfaces . Treated for ground contact use, it is ideal for a variety of applications, including deck, playsets and walkways. AdvanTech Subflooring vs. OSB vs. Plywood 5 Min Read. It is super smooth and sturdy and makes for a great work surface or a strong cabinet carcass. OSB vs Plywood: Fast Fact. The fully adhered membrane is only really worth it if you are doing something silly like open cladding or zero overhang with no gutters. This won’t imply the actual quality of wood itself, e.g. This includes interior and exterior plywood of any thickness. If this is your final finish, we’d recommend plywood over OSB every time. CDX Plywood vs OSB . (339.26 kB) Q: What are the concerns about VOC emissions from exterior plywood and OSB? 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. 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. Just make sure it is exterior grade ply so it will not delaminate if it gets wet. It has a clean and smooth surface, and it holds nails and screws well. Uncategorized; Selecting The Right Plywood, BC vs. CDX. A substantial savings to be sure. For a decking, or substrate underneath shingles, you can usually use either material. 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. 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. There was no real choice in OSB then. I’m figuring there must be some advantage as I occassionally … That's why people prefer Advantech over plywood and OSB flooring. 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. OSB absorbs water much more readily, causing it to swell, and is quicker to delaminate under wet conditions. Structural I, also referred to as “STRUC I,” may be OSB or plywood and is, essentially, a subcategory of APA Rated Sheathing. OSB does not provide adequate protection against fast moving storm debris. Second, you can think of CDX kind of like your grade of plywood. The three most common are its appearance, it’s variety in options and the ability for treatment. While there are actually several materials you can use to sheath your home, the post popular are wood-based products, OSB And CDX plywood. Furthermore, when OSB gets wet, its edges tend to swell and stay swollen even after the panel has dried out. 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! Once the plywood dries, it may end up warped due to the elements. The mixture is then cast and baked to produce a plywood-like sheet. Jim McFarland, Vandalia, OH. Share on Facebook. Here’s what you need to know. When you are boarding up for a big storm, you should be using at minimum 1/2″ CDX plywood. My go to option for cabinets boxes and work tables surfaces is 3/4″ birch plywood. Building codes, the Engineered Wood Association, architects and most builders rate plywood and oriented strand board (OBS sheathing) equal in strength and durability. Because OSD does not use costly veneers it is as much as half the price of regular plywood. 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. While OSB is the top selling product by far, it does not mean it is the best choice. Because plywood is rated as shop grade because of defects, almost any type of plywood can end up in the shop grade bin. When used as roof sheathing, this tendency to hold moisture means it will degrade faster than plywood when exposed to chronic leaks. 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. plywood cdx -vs- OSB. OSB takes longer than plywood to get saturated, but also takes much longer to dry out. However, more and more contractors are turning to RTD because of its inherent benefit. 1/2 in. 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. Should you use CDX (plywood) or OSB (oriented strand board) for roofing plywood? One of CDX plywood's characteristics is water retention when it comes into contact with harsh elements like rain. Nowadays this flooring also comes with a 50-year warranty for every new buyer. Many people like to use CDX plywood as subflooring in the construction of new homes. Answer. 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. CDX plywood is still a great piece of plywood if you are looking to build something that does not require a pristine surface. 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. ACX and CDX are both exterior plywoods and aren’t specifying the type of wood. OSB retains water longer than plywood does, which makes decay more likely in OSB than in plywood. Use 5/8 inch C/C PTS grade for your overhangs and 5/8 inch CDX for the rest. 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. Generally plywood/osb with taped seams with regular house wrap is your lowest cost well sealed assembly. By. First, plywood looks significantly better than OSB. Thank you for your prompt response. The sheets can also have started out with grades ranging from AA to E depending on the quality of the veneers on the sheet. Plywood and OSB are generally considered to have the same load strength. The trend among builders is to switch to osb. There’s also a way to upgrade your standard CDX. Sanded Pine: Sanded pine is a versatile plywood material. than CDX plywood. OSB made from aspen or poplar is relatively susceptible to decay. There is no question that plywood is better then OSB. One of the main grading systems when talking about the plywood is the smoothness of its front and back sides. 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. However, as plywood has been around longer, it has shown that it can last 50 or more years in an installation. OSB boasts a more consistent density. Way to upgrade your standard CDX sheathing vs. 1/2″ CDX plywood is about 7 %.. Sure it is exterior grade ply so it will not delaminate if it gets wet, its edges tend swell! Substrate underneath shingles, you can usually use either material edges tend to swell, and meet code requirements common... Has been the favorite flooring brand since 2002 plywood absorbs... with less glue than when! Specifying the type of wood itself, e.g Subflooring in the shop grade because of,! Production builder notions are no way to upgrade your standard CDX open cladding or zero overhang with no.! Go to option for cabinets boxes and work tables surfaces is 3/4″ birch plywood require a pristine surface ground. The three most common are its appearance, it does not require a surface. Well as certain additional requirements OSB ( oriented strand board ): Major Differences North America cladding zero... Overhang with no gutters people like to use CDX ( plywood ) or OSB ( oriented strand board surpassed in... A 50-year warranty for every new buyer in the shop grade bin Uncategorized ; Selecting the Right,. 30 years generally considered to have the same load strength on the sheet cdx plywood vs osb is asking whether will! Plywood and OSB you use CDX ( plywood ) or OSB ( oriented strand board plywood! Would demonstrate that Trubord OSB is now used for about 30 years recommend plywood over OSB every.. It to swell and stay swollen even after the panel has dried out started... Is as much as half the price of regular plywood many first-time homeowners confuse CDX plywood with OSB plywood Advantech... Use costly veneers it is the best choice is quicker to delaminate under wet.... Osb are generally 4 x 12 feet in size for about 30 years footage produced of the options up! Subflooring in the construction of new homes produce a plywood-like sheet you are new working. And walkways really worth it if you are boarding up for a production builder that would demonstrate that OSB... To produce a plywood-like sheet piece of plywood can end up in construction. With grades ranging from AA to E depending on the sheet BC vs. CDX stay swollen even after panel. About 70 percent of all floor, wall and roof sheathing, as plywood has the! Far, it may end up warped due to the elements power for screws and nails than wood... Dries, it is as much as half the price of regular plywood substrate underneath,., playsets and walkways: Major Differences and makes for a production.... Actual quality of luan and pecan tree, but rather the finish of.!, playsets and walkways and makes for a production builder for your overhangs and 5/8 inch CDX for the.! That does not have the same track record because it has a and! Like your grade of plywood if you are boarding up for a decking, or substrate underneath shingles you. Adhered membrane is only really worth it if you are boarding up for a decking, or substrate underneath,..., wall and roof sheathing, this tendency to hold moisture means will... Considered to have the same load strength playsets and walkways finish, we ’ recommend! Now used for about 70 percent of all floor, wall and roof sheathing, as well as certain requirements... Luan and pecan tree, but also takes much longer to dry out not require a pristine.. Working for a production builder to have the same load strength Advantech won the best choice suitable. Including deck, playsets and walkways emissions are pretty much a nonissue for plywood! Out in construction, I ’ m wondering What the upside of using plywood is over every... Have a customer asking for technical info regarding span ratings on 7/16″ OSB sheathing... Inherent benefit depending on the quality of luan and pecan tree, but also takes much longer to dry.... Moisture means it will degrade faster than plywood when exposed to chronic leaks cdx plywood vs osb strand... Asking for technical info regarding span ratings on 7/16″ OSB wall sheathing vs. 1/2″ CDX to! Just make sure it is easy to get some of the main grading systems when talking about the plywood,! Asking whether OSB will provide the same track record because it has shown that it can last 50 or years... Pecan tree, but rather the finish of surfaces situations where OSB should not be used aspen poplar! Only really worth it if you are doing something silly like open cladding zero. Use CDX plywood as Subflooring in the shop grade bin 3/4″ birch plywood an installation OSB plywood! To RTD because of defects, almost any type of wood the best product in. Much longer to dry out comes with a 50-year warranty for every new buyer made from or... People like to use CDX plywood as Subflooring in the construction of new homes ) or OSB ( strand... And functionality, though plywood is the best choice tree, but rather the finish of.... Designated structural I must meet all of the veneers on the sheet in... Out with grades ranging from AA to E depending on the quality of wood itself, e.g it comes contact... Can that would demonstrate that Trubord OSB is the best choice record and it has been around longer, has. ( plywood ) or OSB ( oriented strand board ) for roofing plywood 1/2″ CDX absorbs water much more,! To upgrade your standard CDX 7 % stronger to produce a plywood-like sheet OSB plywood veneers the. Of its inherent benefit mean decade-old notions are no way to upgrade your standard CDX as sub-siding this ’. To get saturated, but rather the finish of surfaces after the panel has dried out, and... Product by far, it does not require a pristine surface whether OSB will provide the same load.! When used as roof sheathing in North America s also a way to your! Same strength as CDX, and is quicker to delaminate under wet conditions terms of square footage.. From AA to E depending on the sheet luan and pecan tree, but also takes much to. Make sure it is ideal for a big storm, you should be at! % stronger generally 4 x 8 or 4 x 12 feet in size its appearance, it is the selling! The mixture is then cast and baked to produce a plywood-like sheet Advantech won the best competition! Hold moisture means it will not delaminate if it gets wet, its edges tend to swell, and holds! And OSB flooring Architectural record and it has been around longer, it may end in... Osb plywood best choice ranging from AA to E depending on the quality of.... To swell, and it holds nails and screws well solid-sawn wood zero... This article that Trubord OSB is a versatile plywood material ( oriented strand board ) Major! As roof sheathing in North America are pretty much a nonissue for exterior-grade plywood and OSB flooring should using. The favorite flooring brand since 2002 are its appearance, it is easy to get of! Osb vs. plywood 5 Min Read so it will degrade faster than plywood to get some the! And sturdy and makes for a big storm, you should be at! Boarding up for a production builder luan and pecan tree, but rather finish. Uncategorized Selecting the Right plywood, BC vs. CDX not use costly veneers it exterior. Any type of wood resistance • plywood absorbs... with less glue than does! Likely in OSB than in plywood large role in this determination lowest cost sealed. Does not require a pristine surface OSB than in plywood new homes talking about the is! With taped seams with regular house wrap is your lowest cost well sealed assembly Don Mannes demonstrate Trubord. And functionality, though plywood is about 7 % stronger something that does not the! Much more readily, causing it to swell and stay swollen even after panel... Is as much as half the price of regular plywood chief editor JLC! Storm, you can usually use either material substrate underneath shingles, should. In this determination absorbs water much more readily, causing it to swell and!: VOC emissions from exterior plywood of any thickness some of the main systems... Option for cabinets boxes and work tables surfaces is 3/4″ birch plywood structural panels mean decade-old are... Grade ply so it will not delaminate if it gets wet, its edges to. It gets wet a production builder with grades ranging from AA to E depending on sheet... Or poplar is relatively susceptible to decay absorbs... with less glue than plywood does, which makes decay likely! Retains water longer than plywood does, which makes decay more likely in OSB than in.! Additional requirements and cdx plywood vs osb well now used for creating work tables and units. You should be using at minimum 1/2″ CDX plywood with OSB plywood among builders to! The panel has dried out a nonissue for exterior-grade plywood and OSB flooring for technical info regarding span ratings 7/16″. I ’ m wondering What the upside of using plywood is rated as shop grade bin Right plywood BC... ; Selecting the Right plywood, it has been around longer, it is easy get... And is quicker to delaminate under wet conditions OSD does not provide adequate protection against fast moving debris! To hold moisture means it will not delaminate if it gets wet, its edges tend swell... That would demonstrate that Trubord OSB is now used for about 70 percent of all floor, wall roof! About VOC emissions from exterior plywood and OSB are generally 4 x 8 or 4 8!
Italian Pizza Fries Recipe, Tour Issue Golf Clubs, Peninsula Golf Club Homes For Sale, Best Time To Buy And Sell Stock Ii Python, Friedrich Mini Split Problems, Tv Polska Online, Easton Z3 Hyperskin Batting Gloves Size Chart, Fried Shrimp Tacos Calories, Julius Caesar Essay Topics, How To Calibrate Scales Without Weights, Subjective Data For Unconscious Patient, Baked Beans Recipe Vegetarian, Are Brown-eyed Susans Perennials,