The main difference between CDX and ACX plywood is the type of glue that bonds the layers of wood together. CDX is the most common plywood available, and is usually utilized for construction projects.
CDX plywood is made up of softwoods, and the glues used to bind the layers together are of a lower-grade, exterior rated adhesive that can handle exposure to the elements, such as weather, standing water, and extreme temperatures.
ACX plywood is designed for indoor and outdoor use, but is primarily used in interior projects. It is made from a combination of hardwood and softwood, and the layers are bound together with a higher-grade, waterproof adhesive that is stronger, and able to withstand more wear and tear than CDX plywood.
Overall, CDX plywood is a great option for most construction projects because it is economical and can handle both indoor and outdoor conditions. ACX is more expensive and better suited for interior projects that will come into contact with moisture, and be subject to more wear and tear than an exterior project.
Can ACX plywood be used outside?
ACX plywood is a type of plywood that is generally used as a subfloor or for interior applications, but it can be used outside if it is properly sealed. When installing plywood outside, it is important to use a high quality sealant to protect the plywood from water damage and weathering.
The sealant should be applied to all sides of the plywood, including edges, to ensure maximum protection. Additionally, the plywood should be securely attached to the surface it is being installed on using a waterproof adhesive.
If it is going to be exposed to direct sunlight for extended amounts of time, the plywood should also be painted with an appropriate top coat to protect against fading and discoloration.
What are the 3 types of plywood?
The three main types of plywood are interior plywood, exterior plywood, and pressure treated plywood. Interior plywood typically has a smooth sanded surface that can be stained to match other interior finishes.
It is made with glue that is rated for interior use, such as particle board. Interior plywood is most commonly used for roof and wall sheathing, furniture, and cabinets.
Exterior plywood is made with weather-resistant glue and is typically for outdoor use. It is designed to withstand moisture and has a smooth finish that can handle paint or stain without additional preparation.
Exterior plywood is often used in building projects such as outdoor furniture, decks, sheds, and siding.
Pressure treated plywood undergoes a chemical treatment to make it resistant to rot, decay, and insect infestation. This type of plywood is often found in climates with high humidity and is commonly used in underwater applications such as docks, piers, and seawalls.
It is also sometimes used in deck construction and when building exterior stairs.
What is the highest quality plywood?
The highest quality plywood is usually made from hardwood and is graded according to the number of plies or layers, usually from A to D. Grade A plywood is often made from Mahogany or Ash and is of the highest quality, with a uniformity in color, thickness and grain direction.
Grade D is of the lowest quality, usually made from softwoods such as Spruce or Pine. Generally, the plywood with the highest quality finish is the plywood made with hardwood and grade A. This type of plywood is the most expensive and has the best durability.
It is also typically more resistant to warping, shrinking and cracking compared to lower quality plywood. Plywood with a grade A finish is often used for furniture and cabinetry to give a better looking finish and greater durability.
Is ACX plywood structural?
Yes, ACX plywood is structural. It is made with multiple layers of veneers bonded together with environmentally friendly adhesives, giving it added strength and stability compared to other types of plywood.
It has higher rigidity than standard plywood along with greater stability over time, making it a great choice for applications where strength and durability matter. ACX plywood is ideal for uses such as roofing, subfloors, and wall sheathing, and is approved for use as structural paneling in many construction applications.
What is CDX plywood used for?
CDX plywood is a type of construction-grade plywood typically used for exterior applications. It is composed of a thin external natural wood veneer called face and a thicker core made with an interior layer of denser wood.
The interior layer is called the ‘C’ side of the plywood, while the exterior ‘D’ veneer is protected with a waterproof resin coating. CDX is commonly used as a subfloor or sheathing material in the construction of buildings and exterior walls.
It is typically used in applications where its water resistance is required, such as outdoor decks and sheds. It is also often used in wood framing projects, such as sheds, porches, and roofs. CDX plywood is ideal for use in applications where it will be exposed to moisture and is also popularly used as an underlayment for siding.
Additionally, CDX is also commonly used for roof decking, roof sheathing and flooring. This type of plywood is also commonly used for fence post backing and other outdoor structures.
What grade is ACX plywood?
ACX plywood is generally available in grade “C-D” or “C-C”, which is suitable for most construction and industrial applications, as well as exteriors and furniture making. However, those grade designations can vary regionally, so it is important that customers check with local sources for plywood grade availability.
Grade “C-D” ACX plywood consists of a “C” face veneer, and a lower “D” grade reverse side veneer. The face of Grade “C-D” ACX plywood is relatively free of defects and defects are encouraged to be patched prior to finishing.
Grade “C-C” ACX plywood, in contrast, consists of both face and reverse veneers that are “C” grade, or of higher quality. Grade “C-C” ACX plywood is often used in higher-end furniture making, including but not limited to countertops and cabinet boxes.
No matter what grade of ACX plywood is used, customers should remember to select plywood from reputable sources and inspect each board prior to installation.
What type of plywood is waterproof?
Marine grade plywood is the type of plywood that is the most waterproof. It has an A-grade face and provides the best protection against rot, abrasion, and UV radiation. The cores of marine grade plywood are made with a higher number of layers and a special waterproof adhesive.
It is suitable for use in outdoor and wet environments, exposed to rain, and areas often submerged in water. However, due to its cost, it is mostly used in the construction of boats, docks, and other marine structures, or in areas that need to be highly water resistant.
Is MDF plywood waterproof?
No, MDF plywood is not waterproof. MDF stands for Medium Density Fiberboard and it is made up of wood fibers glued together with a synthetic resin and then pressure molded and shaped. While it is highly resistant to water and moisture, it is not waterproof.
You would need to use a sealant or primer to help protect it from water, especially in high humidity or in environments where it will come in contact with liquid. For applications such as a bathroom vanity or kitchen cabinet where water or moisture may be an issue, it is best to use plywood such as particle board or marine grade plywood that are both more water and moisture resistant.