With softwood plywood, a three letter code is used to define the grade. One option for this is to use marine grade plywood. Structural plywood products give architects, engineers, However it cannot be exposed to water like Marine Plywood but is adequate for outdoor use. It typically contains C-grade inner layers and is bonded with exterior glue. Find out what is the full meaning of CCX on Abbreviations.com! The difference comes in the core of the plywood. Nevertheless, in general, plywood sheets will have a face side and a reverse or back side, with the face side being of higher grade than the back. While both can be used in the same manner, the better face veneer of ACX plywood makes it ideal for visible exterior panels on a home. They work equally well for these uses, are just as easy to drill into and have equivalent ability to hold nails. For cabinetry projects and other plans that require one side of the plywood … Plywood is used in many applications that need high-quality, high-strength sheet material. It has been in widespread use as sheathing in residential and commercial construction for well over 50 years and has developed a reputation as a premium panel product for both commodity and specialty applications. These prices can change over time, and differ from one store to the next. We'll help you find the right plywood for you. Andrew Davison Member. BCX comes in a variety of thicknesses. Although it is more expensive, marine-grade plywood, when finished appropriately, will outlast pressure-treated plywood by far. You can delay this process -- perhaps for many years -- by painting both sides and all the edges with high-quality exterior enamel. Not available for purchase online. Plywood assembled from it needs to be able to withstand boiling in water for several hours without de-laminating. CDX plywood is created by bundling layers of wood together. Just like BCX, CCX plywood comes in a wide variety of thicknesses, normally contains C-grade inner plies, and is bonded with exterior glue. CDX plywood is much thicker and can be bought for low prices in large volumes. It uses the same rosin and surface treatment against moisture as BCX plywood, allowing you some time before painting the wood. CDX plywood is often used under shingles and roofing felt, on walls (just behind the siding and insulation), and as a sub floor just under the carpet pad or a tiled floor's durock. Below is an example of what you can typically expect to pay for different types of construction-grade plywood panels. Another option is PTS plywood, which stands for plugged, touched and sanded. Quality in this context means resistance to cracking, breaking, shrinkage, twisting and warping. May have tight knots, without any missing wood, up to 1 inch in diameter. Although it's easy to find at your local home center, it's probably not the best choice for smaller projects, like a bookshelf or other furniture around the house. The first letter of the code talks about the face, or front side of the plywood, the second letter of the code discusses the plywood’s back side, and the third letter tells you whether the plywood is suitable for interior or exterior use. The average lumberyard or home improvement center today carries a plethora of different types of plywood, giving you a wide selection to choose from. This plywood can be painted or stained as design. Softwood plywood may also be Marine grade or be rated as Water Boil Proof (WBP). Typically, GC plywood will be tinted, due to the rosin that is used to pressure treat it. This 3-inch on center nail spacing increases the strength of the holding power of the nails and the plywood. Often, when people are looking for CCX plywood, they are directed by the lumberyard to CDX plywood, which is the standard grade of plywood used for sheathing on homes. Estimates put its market share as high as 75%, with much of that dominance thanks to cost-conscious production builders. The Difference Between Exterior and Interior Plywood Because it's used for cabinetry and interior finishing, the appearance of interior plywood is more important than its resistance to moisture and rot. Because of this construction method, plywood is less susceptible to expansion and shrinkage. Mill Product Availability: Plywood Sales 855-721-5067 . With any marine grade plywood, the veneers in the core must be without any voids. 15/32 in. Plywood is a widely recognized engineered wood-based panel product that has been used in Canadian construction projects for decades. If you want to add or replace a garden shed roof or pool pump cover this would be the plywood you choose. Plywood Versus MDO. This comes at a cost though, as these higher grades of plywood are more expensive. As structural plywood contains veneers measured and tested for strength and stiffness, it has proven to be quite safe and reliable for use in commercial and industrial buildings. The ultimate resource for plywood. The extra cost of the tape gets it so the marine plywood is pretty close. After 20 years use, I replaced the back end sheet of plywood on my pontoon boat 5-6 years ago with regular painted plywood. Sanded smooth, paintable. The solution is to use a plywood product without voids. Pine, spruce, mahogany, Douglas fir, birch, oak and maple are types of wood used for exterior plywood. Water blowing in our boathouse door promptly rotted the replacement plywood. When you shop for these at a hardwood store, you will find different grading systems, which use alphabets like A, B, C, and D. Each letter has its own explanation. These utility panels are best for work buildings, farm construction projects, truck and boxcar linings, and similar projects. So, 3/8” plywood is actually 11/32” ½” plywood is actually 15/32”, 5/8” plywood is actually 19/32” and ¾” plywood is actually 23/32”. Some small splits and discoloration are allowed. One of the most common uses for plywood is for subflooring in new construction homes. You may find that these panels have been pressure treated; but if so, they will be specifically stated as such. thick to steel flanges up to 3/16 in. Any glue used for marine plywood or for that matter also used in exterior use has to conform to the a stringent test. • A-D: This is a finish-grade plywood used for making furniture. Both are suitable for exterior use. The last letter indicates the type of adhesive that is used to bind the layers of plywood together. All Rights Reserved. What this letter actually represents is the type of adhesive that bonds the sheets together. Different companies may tint it green or yellow, mostly as a part of their branding. CDX plywood, a stock item at most lumberyards, is a utility grade suitable for most outdoor projects. The price chart is an example only. Therefore, it is not impervious to moisture, decay and termites. Plywood is graded based upon the surface finish. Plywood long ago lost its market leadership to oriented strand board (OSB), which is now the most-used sheathing and subflooring material. In addition to these structural uses, CDX plywood is also commonly used for minor utility purposes, such as rudimentary shelving in basements, storage cabinets, or sheds. You can make painted projects out of them, especially in cases where only one side needs to be showing. The type of glue used is an exterior glue, making this grade of plywood more versatile and also the most commonly used. CCX is a better veneer grade than traditional CDX, and is used for exterior walls, roofing, and foundations. The wood is extremely durable, which makes it an ideal material to be used in a roofing base. Exterior plywood used the traditional grading system but uses the letter “X” to indicate it was made with exterior glue. Hardwood uses a number system, while softwood uses a letter system. Grade “B” provides a solid surface, with some repairs allowed. CDX stands for class C to D exposed plywood. Some examples include clothing wardrobes, dressers and bookcases. West Fraser's plywood is derived from managed sustainable forests. x 4 ft. x 8 ft. CCX PTS 5 Ply Fir Underlayment is a sanded-and-plugged plywood that can be used as paint grade or soffit plywood. In the case of plywoods ending in an “X,” such as ACX, BCX and CCX plywood, the “X” stands for exterior grade adhesive. However, it is not pressure treated wood or any other that is intended to last outdoors. What is stronger plywood or OSB? While this works fine, voids in the core layers of plywood can cause sponginess or premature delaminating of the wood, especially in cases where high floor loads are expected or where some flexibility in the floor is required. A and B grade plywoods are typically suitable for finish material, while C and D grade plywoods are considered to be best for construction projects. Uses of structural plywood. CCX Plywood strengthens wall and roof structures and provides a nail base for siding and roofing. Why? There are many uses of plywood, just take a good look around from where you are sitting and chances are there will be a whole lot of plywood around you. The front 5 sheets of OEM marine plywood is as solid as it was when the boat was new. OSB plywood can be used in the construction of the walls of a house. ULX plywood should always be treated with a wood preservative or painted, when used in an outdoor application, unless it is to be covered by a waterproof layer, such as siding or roof shingles. Quality in this context means resistance to cracking, breaking, shrinkage, twisting and warping. However, the longer you wait to paint it, the more damage it will incur. Ply is an engineered wood product made from three or … Just like BCX, CCX plywood comes in a wide variety of thicknesses, normally contains C-grade inner plies, and is bonded with exterior glue. • C-D: This plywood is used for structural as well as sheathing of sub floors and shuttering. Common Plywood Applications APA-trademarked plywood is suitable for a variety of end uses including subflooring, single-layer flooring, wall and roof sheathing, sheathing ceiling/deck, structural insulated panels, marine applications, siding, webs of wood I-joists, concrete forming, pallets, industrial containers, mezzanine decks, and furniture. This plywood has phenolic glue which is water resistant and can be used outside. This plywood is pressure treated in order to protect it from termites, fungal decay, and rot. GC plywood is always pressure treated, protecting it from rot and decay, making it truly impervious to the normal decay that happens in wood that is in contact with the ground. While other wood left in contact with the ground will be attacked by termites, GC plywood will not. Generally speaking, this rating is used mostly for MDF and other engineered wood panels, which are not made according to the same method as traditional plywood panels, even though they are considered a plywood product. Businesses which specialize in providing architectural trim for cabinetmakers and contractors will have even more choices, especially if you’re looking for hardwood plywood. The second letter indicates the backside of the plywood. Essentially, all of the wood entering their facilities is utilized within their manufacturing process, so virtually nothing is wasted. Medium-density overlay (MDO) plywood is a specialty plywood designed for heavy exterior use. Shear values, through its thickness, are about 2 times greater than plywood. AC plywood has a variety of different uses, although primarily for base coatings, fences, roofs and ceilings. x 4 ft. x 8 ft. CCX PTS 5 Ply Fir Underlayment is a sanded-and-plugged plywood that can be used as paint grade or soffit plywood. CCX Plywood This type of plywood has more blemishes than BCX plywood, and both the face and the back have the same characteristics. Ideal for a variety of applications. The difference in CCX and CDX is only on the back side, which is not normally visible in construction. Most plywood is made from an od… The difference in CCX and CDX is only on the back side, which is … BCX plywood has a handsome, well-sanded face and a less-finished back side. This type of plywood has more blemishes than BCX plywood, and both the face and the back have the same characteristics. No repairs will have been done to improve the quality of the surface veneer. Zwolle, Louisiana Emerson, Arkansas; 11/32 rated sheathing: 19/32 rated sheathing 19/32 CDX* 19/32 CCX* 15/32 4 ply rated sheathing Finally, ensure that you choose the right thickness for your project to ensure that it will be able to stand up to the elements while performing the way you need it to. Plywood is used in many applications that need high-quality, high-strength sheet material. Like plywood, it is widely suitable for use as a structural board, and is commonly used in roof and wall sheathing, in subfloors, and increasingly in furniture manufacturing. Most people who are working on construction products are looking for the final letter X. It is often extended beyond traditional wooden plywood to include medium density fiberboard (MDF), particleboard, hardboard and chipboard. Plywood is a laminated product made up of numerous thin strips of wood laid in alternating directions and bonded with glue into strong, stable sheets. The treatment the plywood receives is only enough to protect it during construction. Of these softwood plywoods, the most common variants you’ll find in your local home improvement center are BCX, CCX and CDX. It cannot stand prolonged periods of exposure to water so it must be covered by another material. Medium-density overlay (MDO) plywood is a specialty plywood designed for heavy exterior use. The layers are glued together and if water-resistant glue is used, it is exterior plywood. There are different plywood grades and plywood types such as CDX plywood and marine plywood. Both types of plywood can be painted. Glues vary in their tenacity while being boiled. It’s used in cases where frequent wetting or immersion in fresh water doesn’t allow the lumber to dry. It's only about $18/100 feet but you need to be careful to cover everywhere the plywood touches the aluminum. • B-D: This is a utility-grade plywood with only one side that can be painted. It has been in widespread use as sheathing in residential and commercial construction for well over 50 years and has developed a reputation as a premium panel product for both commodity and specialty applications. To reduce bowing and flexing, the incredible strength of CDX always comes handy. Durability and Stability. CDX plywood is the lowest class of plywood and is often used in the construction industry or as a base for other materials. However, OSB is generally considered less resistant to water (it swells in thickness when exposed to moisture) and some people prefer plywood for roofs and subfloors. ACX plywood is a variation on BCX. x 4 ft. x 8 ft. CCX PTS 5 Ply Fir Underlayment is a thick, dense and durable plywood used for permanent wood foundations and other applications where treated plywood is needed. This means that an adhesive has been used in the construction of the plywood, which is able to withstand moisture. BCX plywood is readily available, but CCX not quite so much so. This is necessary in marine applications, because voids allow moisture to collect, allowing delamination of the plywood to begin. Rigid in structure and flexible in uses. CCX is an exterior sheathing product with some voids. Grade “D” is the lowest grade, with knots and knotholes up to 2 1/2″, along with some splits. https://www.thesprucecrafts.com/learn-about-different-plywood-grades-3536690 At a lighter weight than comparable panels, Weyerhaeuser plywood delivers the goods by using moisture resistant glues that hold up to the elements. While an exterior grade plywood, it is not marine grade or pressure treated. They make an excellent base for the application of exterior coatings. Uses. CCA-treated wood is also referred to as pressure-treated wood and is known by the trade name Wolmanized®. Sanded Plywood. plywood/adhesive is uniformly heated during bonding of the plies. CCX is an exterior sheathing product with some voids. The major distinction between these categories is the actual construction of the sheets. The ordinary glues used in ordinary plywood , pressure-treated or not, will eventually fail with continuous exposure to water and moisture. Free Ship to Full Service Location for Pickup. This grading scale is different for softwood plywood, than it is for hardwood plywood. Others are looking for plywood to put inside of a shed or another outdoor building that will be exposed to the elements. It does have some downsides, though. Skip to the beginning of the images gallery, Used for exterior walls, roofing, and foundations. Underlay: This plywood is used as an underlay for carpets as well as tiles on an uneven sub floor. The first letter is the face veneer grade, and the second is for the back veneer. There are many types of plywood, including a wide range of engineered wood products which are referred to as “plywood” even though they aren’t made like traditional plywood. For the best experience on our site, be sure to turn on Javascript in your browser. Just like BCX, CCX plywood comes in a wide variety of thicknesses, normally contains C-grade inner plies, and is bonded with exterior glue. JavaScript seems to be disabled in your browser. Rigid in structure and flexible in uses ... We offer a variety of grades and thicknesses of Southern Yellow Pine plywood panels to meet most budgets in virtually any application. Exterior glued plywood is suitable for outdoor use, but because moisture affects the strength of wood, optimal performance is achieved where the moisture content remains relatively low. Softwood Plywood Grades. This is a specification for a sample of the plywood, made in the same way with the same materials, having been immersed in boiling water for an extended period of time, without delaminating. Plywood is a broad category of sheet good building materials. I've found structural softwood plywood in 18mm thickness. Underlayment Plywood: Underlayment plywood is designed to be used as a subfloor. Other comparable but less expensive sheet goods, such as oriented strand board (OSB) or medium density fiberboard (MDF) may be a better choice for some specific choices. The letters “CD” represent the veneer grades used on the front and back, and “X” means the glue (not the wood) is rated for outdoor exposure—but only for a short time. The wood is dipped in a solution of CCA and subjected to vacuum pressure to force penetration of CCA into the wood. This extra effort provides a superior plywood product for underlayment, where you don’t have to worry about voids or unevenness in the sheets. Here’s just a few examples of how plywood is used and why it is such an excellent choice of material for such uses: 1. It is an economical, factory-produced sheet of wood with precise dimensions that does not warp or crack with changes in atmospheric moisture. AC2® brand treated wood products use MicroPro™ technology, which is a revolutionary way to pressure treat wood for decks, fences, landscaping and general construction uses. Inside of the home, CDX plywood is often used as an additional flooring layer that rests just below the carpet pad or as a backer board for tiling.

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