What is the difference between CDX and ACX plywood?

Since ACX plywood is a higher grade material than say CDX plywood, it is specifically used in cases that require good appearance or a smooth finish, along with durability. Because this plywood is more expensive than other grades of softwood plywood, it is only used where needed, not in all situations.

What is ACX plywood used for?

ACX plywood is ideal for outdoor projects like sheds, which need durable floorboards and outside covering. However, it is also generally great for rooms that are frequently exposed to moisture.

Whats the difference between ACX and CDX plywood?

As such, a sheet of A-C plywood will be very well finished on the face with a relatively unfinished back. Conversely, construction-grade plywood would be C-D (commonly referred to as CDX plywood), which is great for structural use but not suited to be finish material.

Is ACX plywood waterproof?

Your best choices are either ACX or marine grade plywood. Both are made with waterproof permanent phenolic (WBP) glue, but there are some important differences between ACX vs marine grade plywood.

What is the best plywood for exterior use?

What Is The True Difference Between Oriented Strandboard and CDX Plywood?

Is CDX plywood waterproof?

Keep in mind that this kind of plywood is water resistant, not waterproof, and can still be ruined from a leaking tub or toilet. 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.

What is CDX plywood used for?

CDX Plywood is used primarily by contractors to build exterior walls and roofs. CDX plywood has one side veneer grade “C” and one side veneer grade “D”. The two are bonded together with glue which can withstand a little moisture. The APA would recognize CDX Grade Plywood as C-D Exposure 1 plywood.

Is ACX stronger than CDX?

Since ACX plywood is a higher grade material than say CDX plywood, it is specifically used in cases that require good appearance or a smooth finish, along with durability.

What is the best water resistant plywood?

BWR Grade Plywood

This is used for both interiors and exteriors, being treated with phenolic resins to make it water resistant. Unlike MR grade, BWR grade plywood is good for use in areas that have prolonged exposure to water, for example, in kitchens and bathrooms.

What does ACX mean?

ACX means the audiobook production service and rights marketplace owned and controlled by Audible, Inc. and available at www.acx.com.

What is the best grade of plywood?

A has the highest quality and is the most expensive, and D is the least expensive. A-grade plywood features a smooth, sanded surface without knots. Any wood defects have been repaired with synthetic filler, so the veneer can be painted. A-grade plywood is ideal for furniture or cabinet doors.

What is the best roofing plywood?

CDX plywood is considered the best roof sheathing material because of its better dimensional stability. That means it's hardly waterproof and readily absorbs water, but it also sheds the water quickly and reverts to its original shape and thickness effortlessly.

What are the 5 grades of plywood?

Is ACX plywood exterior rated?

The C in ACX represents the back face, which may be considerably rougher with visible seams, patches and voids. The X in ACX represents the exterior rating, which, as previously mentioned, indicates the use of exterior rated waterproof adhesives in the manufacture of the plywood.

Is ACX plywood pressure treated?

x 48 in. x 8 ft. Pressure-Treated Fir Plywood is ACX, non-grooved, paintable plywood. This fir plywood is Hi-Bor borate pressure-treated.

Is AC plywood the same as ACX?

ACX plywood is a version of a plywood panel that has a very specific makeup, with one rough face and one sanded face on either side. ACX plywood is used prevalently on home outdoor projects and renovations.

What kind of plywood should I use for a shed wall?

Use pressure treated 3/4 inch construction grade exterior plywood for the floor. It's solid, won't sag, and protects the substructure and is easy to sweep. On the shed walls use exterior rated 1/2 inch plywood for a waterproof finished look, and 3/4 inch CDX plywood on the roof for strength.

What can you put on plywood to make it waterproof?

Plywood can be waterproofed with paint, polyurethane, or epoxy finish. Lightly sand the plywood with 180 grit sandpaper, clean off any sawdust, and apply the finish with a brush or by pouring the finish on if using epoxy.

What kind of plywood does not warp?

Marine plywood is specifically made to be void free. It is also pressure treated. These two processes help to make it highly resistant to both rot and warping. Likewise, many types of cabinet grade plywood are void free, especially those with more layers of veneer in them.

Can I use CDX for subfloor?

Although considered an exterior plywood, CDX is often utilized as the subfloor for kitchens and bathrooms— especially for floors destined to be finished with ceramic tiles.

What's the difference between OSB and CDX plywood?

OSB is much more waterproof than plywood and CDX plywood. The glue and resin that is mixed in with the wood chips makes it much less permeable, so OSB holds up longer in harsher conditions. That is why OSB is sometimes used to secure houses when a hurricane draws near.

Is OSB better than plywood?

Wood fiber is used more efficiently in osb. Osb is stronger than plywood in shear. Shear values, through its thickness, are about 2 times greater than plywood. This is one of the reasons osb is used for webs of wooden I-joists.

Is CDX plywood rated for outdoor use?

CDX plywood, a stock item at most lumberyards, is a utility grade suitable for most outdoor projects.

Why is it called CDX?

CDX is veneer plywood, which is manufactured by gluing and pressing together sheets of wood. The letters C and D represent the grades of either side of the plywood, while X stands for exposure.

Is CDX plywood good?

As you would expect, A is the most expensive and the best quality, in terms of the number of knots on it. The less the number of knots, holes and repaired defects the more expensive the plywood. If so, it therefore, means CDX has the most number of knots and defects, making it a lower grade plywood.