CDX stands for class C to D exposed plywood. Actually, the odd number of veneer layers allow for an even number of glue layers. Limited splits, discoloration or sanding defects that donât affect the plywoodâs strength. When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. CDX is a great economical choice for construction grade plywood! 1/2″ plywood is used for building furniture parts, boxes and … When we compare these two different softwoods, we find that fir has less soft grain than pine. Thickness. CDX plywood is the lowest class of plywood and is often used in the construction industry or as a base for other materials. FSC Certified plywood for green construction. Of the two, A-Bond is more weather resistant. Get hassle-free estimates from local trim carpentry professionals and find out how much your project will cost. Once dry, it returns back to its original size. This is mostly because void free veneers are used in the making of marine grade plywood, whereas some voids are permissible in the manufacture of marine grade plywood. The thickness of plywood panels in a subfloor is regulated by the spacing of the joists. Browse our range of trade standard plywood boards such asStructural Hardwood Plywood, Shuttering Plywood or Selex Structural Plywood. It is usually made from fir or pine, just like CDX. However, if vinyl floor covering is to be applied directly to the plywood, which is not recommended, fill any holes, knotholes and cracks. Board footage is a measure of the volume of wood in the sheet. 1220 mm. This means that if they expand at all, due to water absorption, they will buckle in some manner. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness. Plywood is generally available in 4’x8′ sheet and is cut into a square board. CDX, ACX, & Fire retardant available with chain of custody certificate. Sheets are available in hardwood or softwood veneers, and in varying grades including sanded and unsanded. This makes it usable in more visible applications, such as the building of furniture, even though it isnât a cabinet grade plywood. Also, having 3/8″ thickness of wood compared to 1/4″ gives more wood for the nails to hold onto. Our calculators can simplify your woodworking project layout and estimation. ... Sheathing, CDX Plywood 2440mm x 1220mm" 9000189656. Title: plywoodthickness Author: jennyj Subject: plywoodthickness Created Date: … Length 8' (2438 mm) Thickness 1/2" (12.7 mm) Width 4' (1220 mm) Sign Up for Updates. The only exception is plywood which is stated as âhaving no voids,â such as marine grade plywood. Although available, it is rare to find plywood where both sides are the same grade. But thatâs four months of normal rainy weather, not four months of snow and ice buildup. For most applications the 1/32” difference is not important, but for fine carpentry it may be critical to get grooves and cuts to be precisely the thickness of the plywood. Fire Retardant Treated Plywood: 1/2", 5/8", 3/4". This means that a sheet of plywood that started at 3/4” may shrink slightly after manufacturing. Then, once it has dried, sand it smooth, providing you with the surface you need for painting. Email Address Sign Up. Nominal Thickness. Most plywood, other than hardwood cabinet grade plywood, is graded with two letters, showing the face and reverse side grading of the plywood. ACX also on hand for telecommunications panels / phone-board. OSB panels used as roofing sheathing exposed to rain or snow can give the subsequent shingles an unattractive wavy appearance, which is most obvious at the edges of the roof. The Laws of No. First, wood shrinks as it dries and moisture leaves the wood. This soft wood is what absorbs moisture, causing the wood to warp and buckle. Roof and wall sheathing is such an application. If youâre in the middle of a project and winter sets inâ¦thatâs another matter altogether. CDX Plywood Size, Thickness, and Availability. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness. This number is known as a span rating. Radiant Barrier aluminum backed sheathing -- Improves energy efficiency. This is essentially limited to hardwood plywood that is made specifically for cabinetmaking. 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. This added strength means less bowing/flexing in the subfloor. Exterior sheathing is most often Â½â thick (nominal dimension; actually 15/32â measured dimension) for both walls and roofs. The secret to using CDX plywood for these applications is to first, design your project in such a way as to leave no exposed edges. B-Bond plywood is made using melamine-urea-formaldehyde. Plywood is usually sold by the sheet, but in some rare cases it may be sold by the board foot. Learn how to layout wainscoting with all panels a consistent size for an even look. Unplugged knots and knotholes up to 3 inches, splits and other defects allowed. Specifications ; Specifications. 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. Plywood is most often sold in 4′ x 8′ sheets, but may also be available in 4′ x 10′, 4′ x 12′, or 2′ x 4′ sheets. While the length and width are often the actual dimensions, the nominal thickness is usually different than the actual thickness. You might want to give any exposed CDX plywood some protection, especially exposed roof sheathing. Otherwise, it will absorb water, with all the ensuing problems. For example, a sheet of plywood with a nominal thickness of 3/4” is often less than 3/4” thick. Item Number 271066. Feet and Inches Length Measurement Calculator. Item #12181 Model #185109 This plywood is chemically treated with a fire retardant, making it less likely for the plywood to catch fire. There is a mistaken idea that H-clips are there to provide spacing for expansion between the sheets of sheathing. Show more. OSB panels delaminate and swell when exposed to the elements and donât go back to their original shape after it dries. Therefore, the wood itself is not as dense as it is with hardwoods. It typically comes in 4 x 8-foot sheets. As its name implies, the splits and defects have been plugged. Packing crates or shipping large valuables and furniture are often made of CDX plywood, taking advantage of its low cost, high strength and water resistance. Repeated or prolonged exposure to rain (or ice and snow) will eventually compromise the integrity of this material. This grade of plywood has many voids in it. 3/4â plywood by its more accurate thickness of 23/32â, 5/8â plywood by its more accurate thickness of 19/32â, 1/2â plywood by its more accurate thickness of 15/32â, 3/8â thick plywood by its more accurate thickness of 11/32â. ... CDX plywood should be a minimum of 7/16 inch thick. Calculate the size of a cabinet door based on the opening and generate a cut list of parts, including rail, stile, and panel dimensions. Weight. For this reason it is very common to see actual thicknesses on the thinner side and rarely thicker than the nominal measurement. Limited number of patches. 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. Herein, the letters C and D denote the quality of the surfaces (both front and back). Plywood is almost always thinner than the nominal measurement due to the fact that most tooling in furniture and cabinet factories and manufacturing facilities can accommodate plywood that is thinner than expected but not thicker than expected. It is usually made from fir or pine, just like CDX. Allow the filler to dry and then sand, before applying the flooring. This is false. If you have exposed edges, cap them with hardwood. There are always an odd number of layers, balancing the sheet, to prevent warping of the panels. These clips, so named due to their shape, connect the edges of adjacent sheets of plywood, halfway between the rafters, helping to ensure that one panel doesnât bow one way and the next bow the other way. This makes the faux planks feel more authentic. For example, 18mm plywood of 15 plies is stronger than 18mm plywood … 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. Source: inchcalculator.com. Once assembled, cover the plywood with a thin layer of wood putty, spackling or even drywall mud. It is not necessary to fill the splits or knotholes in the face veneer of CDX plywood, when used as a substrate for ceramic tile. Thus, a plywood sheet with a nominal thickness of 3/8 inch is actually 11/32 inch thick. Buy on Beacon Pro+. CDX Plywood Thickness Availability. The thicker the plywood, the more noticeable depth the gap is between the planks. x 4 ft. x 8 ft. RTD Sheathing Syp - The Home Depot APA Rated Sheathing panels are produced as plywood or oriented strand board (OSB). Solid, more knots than A grade, possible minor splits. 34.83 kg. 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. After screwed down on a 12"x12" grid and vinyl plank flooring over it the top layer of the Minimum Plywood Thickness The International Residential Code specifies 3/8-inch plywood for sheathing walls with a standard stud spacing … This softwood plywood is the least expensive grade of multi-layered veneer plywood, manufactured in small factories around the country for local use, predominantly in construction. CDX plywood takes glues and adhesives well (better than OSB due to the waxes involved with OSB manufacturing) as well as fasteners. Even roof felt would be enough to (likely) protect it until the weather warms up. Plywood Alternatives. These different grades have different manufacturing tolerances and may vary more or less from the 3/4” nominal thickness. (b) Shear through the thickness design capacities are limited to sections two feet or less in width; wider sections may require further reductions.