than CDX plywood. Get hassle-free estimates from local trim carpentry professionals and find out how much your project will cost. A-Bond plywood is made using phenol formaldehyde resin. Radiant Barrier aluminum backed sheathing -- Improves energy efficiency. Exterior sheathing is most often Â½â thick (nominal dimension; actually 15/32â measured dimension) for both walls and roofs. Today, more and more lumberyards are stocking their CDX plywood with more accurate descriptions, referring to: CDX plywood is used for a number of applications, including: Construction sheathing of walls and roofs. B-Bond plywood is made using melamine-urea-formaldehyde. If you have decided to use CDX plywood for your next home building project then now you must be wondering about its size, thickness, and availability options. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness. You can use CDX plywood for the construction of storage shelving in garages, attics and basements; places where appearance isnât important, without going through all that trouble. Available Sizes: 4'x8' sheets; 3/8, 1/2, 5/8, 3/4 thickness Show more. Get results in imperial and metric measurements. The veneers used in the core layers will also have permitted voids and splits. This plywood is made with an exterior grade glue. This means that sections of logs are placed in a large lathe, which makes a continuous spiral cut, peeling off one long, continuous sheet of veneer, which is then later cut up for use. When referring to thickness, exterior grade plywood is nominally smaller than the referred to dimension e.g. per sheet (Inc. VAT) Select thickness. As the most common plywood product available on the market, CDX plywood is available in a number of thicknesses, ranging from 1/4 to 1-1/4 inch thick and also including 3/8, 1/2, 5/8 and 3/4 inch thicknesses, which are the most common sizes. APA Rated Sheathing panels are produced as plywood or oriented strand board (OSB). Technical specification: Length. Limited splits, discoloration or sanding defects that donât affect the plywoodâs strength. CDX plywood is manufactured, like other types of softwood plywood, of opposing layers of wood veneers, laid at right angles to each other and glued together with resinous glue. Marine grade plywood also has better face veneers than CDX, which are sanded smooth. When placed across equally spaced beams, joists or rafters, CDX is almost 10% stronger than OSB, the other alternative which is often utilized as a subfloor due to its economy. CDX Plywood Size, Thickness, and Availability. The âCâ graded side is the face side, used where it is more visible, and the âDâ graded side is the reverse side, usually mounted in a way that hides it. Roof and wall sheathing is such an application. From . Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness. ... CDX plywood should be a minimum of 7/16 inch thick. Buy on Beacon Pro+. Plywood Thickness and Weights: Sanded Nominal Thickness 1/4 3/8 1/2 5/8 3/4 1-1/8 Actual Thickness 1/4 11/32 15/32 19/32 23/32 1-1/8 Approximate weight per 4x8 sheet 22.0 28.5 40.6 48 60.8 84.5. This added strength means less bowing/flexing in the subfloor. In the process, it expands slightly, but will dry quickly. The letter "X" stands for exposure, which means the plywood is tough enough to withstand a … As long as appearance isnât a concern, CDX plywood can be used to build a wide variety of smaller projects. 47-7/8 (+/- 1/32) inch. This is essentially limited to hardwood plywood that is made specifically for cabinetmaking. However, I have built a number of pieces of furniture out of CDX plywood, where the intent was to keep the cost low and the furniture pieces were to be painted. It is usually made from fir or pine, just like CDX. of Plies will increase 2 plies; 2. These often aren't the actual thicknesses, however, because sanding during manufacturing removes up to 1/32 inch of material. However, marine grade plywood really isnât waterproof. Moisture resistance • Plywood absorbs water faster and dries out faster than OSB. The veneers are rotary cut from a log. Item #12181 Model #185109 Thus, a plywood sheet with a nominal thickness of 3/8 inch is actually 11/32 inch thick. Most plywood, other than hardwood cabinet grade plywood, is graded with two letters, showing the face and reverse side grading of the plywood. Even roof felt would be enough to (likely) protect it until the weather warms up. Both types of panels swell around the edges as they get wet, but plywood returns nearly to its original thickness as it dries, while OSB swelling is irreversible. Learn how to layout wainscoting with all panels a consistent size for an even look. Actually, the odd number of veneer layers allow for an even number of glue layers. This makes it usable in more visible applications, such as the building of furniture, even though it isnât a cabinet grade plywood. Rated sheathing, also known as CDX in the trade; ... (Panel width and length may vary up to 1/8" to aid with proper installation) Specifications. For this sort of shelving, it is common to use 1âx 4â or 2âx 4â dimension lumber to build a ladder framework to support the shelf. This understanding of the face side even applies in situations where the plywood will later be covered up. Universal Sheathing Plywood, 0.75 in Thick, 4 ft Width, 8 ft Length, CDX Pine-Fir, 0.718 in Nominal Thickness. Width. This means that a sheet of plywood that started at 3/4” may shrink slightly after manufacturing. Lower cost engineered sheet wood products, such as OSB can much more easily be punctured in these applications, limiting the amount of protection they can provide to the goods stored inside. There are a few reasons why the actual thickness of plywood varies. Another reason for varying plywood thicknesses is a range of manufacturing tolerances. Although considered an exterior plywood, CDX is often utilized as the subfloor for kitchens and bathroomsâ especially for floors destined to be finished with ceramic tiles. Of all the types of plywood available on the market, CDX grade plywood is the most commonly available in our countryâs lumberyards and building centers. Used it over 3/4" ply when replacing the subfloor in my house. For many years, the standard option was lauan plywood, also called Philippine mahogany or luan plywood, which is made with an inexpensive tropical hardwood, and therein lies its problem. CDX plywood is the lowest class of plywood and is often used in the construction industry or as a base for other materials. Therefore, in applications where the stability of the plywood is important, it is better to use fir than pine. Please note that this grading system has nothing to do with the quality of the inner veneers, just the face veneers. But in this case, the criteria isnât appearance, as it is utility. Georgia Pacific 1/2" x 4' x 8' 4-Ply CDX Plywood. The term CDX is basically not the name of the plywood grade, but the abbreviation of C-D Exposure 1 plywood. Roof sheathing may be supported by H-clips, in addition to being nailed to the rafters. Although available, it is rare to find plywood where both sides are the same grade. After screwed down on a 12"x12" grid and vinyl plank flooring over it the top layer of the Of the two, A-Bond is more weather resistant. CDX plywood sheets are also available in a fire retardant variant, though those sheets come with a much heftier price tag. CDX Plywood Sizes, Thickness, & Availability. CDX plywood takes glues and adhesives well (better than OSB due to the waxes involved with OSB manufacturing) as well as fasteners. The plywood will provide a stronger shelf than OSB would, with less tendency towards waviness. Nominal Thickness. Item # 271066 . Exterior grade plywood, marked with an âXâ after the surface grade (CDX plywood means face side is grade C, back side is grade D, and the plywood is intended for exterior use) uses a resin that is more water resistant than interior grade plywood. This introduces challenges when precision measurements are needed, such as when selecting a router bit or sizing a dado saw blade. For example, a groove for the base in a cabinet needs to be the exact thickness of the plywood or the cabinet will not be stable due to the loose fit of the parts. The threshold for this is about four months. The most common thickness of plywood is 1/2-inch, but plywood thickness can range from 1/8-inch to 3/4-inches. As its name implies, the splits and defects have been plugged. Please note that these are nominal thicknesses. Once dry, it returns back to its original size.
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