A Homeowner’s Guide to Plywood

When it comes to construction, choosing the right size and grade of sheet material is crucial for your project to succeed. In this guide, we’ll dive into different sizes (3/8, 1/2, 5/8, 3/4) and different grades (BC, CDX, Birch, OSB, Subfloor).

Plywood Sizes

3/8 Inch: This plywood is ideal for most lightweight projects, such as furniture backs and shelving. Its ability to flex also makes it the best option to use for curved surfaces.

1/2 Inch: With its balance of weight and strength, this plywood is the most versatile option we offer. It’s commonly used for cabinet construction and other small DIY projects that you take on.

5/8 Inch: This plywood is best known for its structural integrity and the support it provides. It’s typically used for roof and wall sheathing.

3/4 Inch: This is the thickest option we carry. It’s great for tables, furniture and other “heavy-duty” applications.

Plywood Grades

BC: This plywood is versatile with a smooth surface on one side (Grade B) and a rough surface on the other (Grade C). It’s mainly used in visible projects, like cabinets, with the rough side typically hidden.

CDX: This plywood is the cheaper option and it’s made from two of the lowest grades (Grade C and D). The “X” stands for exposure, which means this plywood can handle a little moisture. However, it should be covered if it’s constantly exposed.

Birch: Birch plywood is our most expensive option. It has a smooth and attractive experience, which makes it ideal for cabinetry and other decorative projects. We only keep 3/4 inch Birch in stock at our warehouse.

OSB: Oriented Strand Board (OSB) is a type of plywood that is made from layers of wood strands and bonded together with resin. We typically only keep 7/16 inch in stock at 8 foot, 9 foot, and 10 foot pieces. OSB is usually used for roof and wall sheathing due to its strength and durability.

Subfloor: Subfloor plays a key role in keeping a stable, even surface. We keep 3/4 inch in stock, so you can be assured you’re getting the most durability for your subfloor.

What and When to Use

Heavy-Duty Construction: You typically want to use 5/8 or 3/4 inch CDX, as it will provide the most durability and be able to withstand some exposure.

Decorative Projects: Birch plywood is the best option for any decorative project. It’s mainly used for cabinetry because of how aesthetically pleasing it is to the eye.

Budget-Friendly Option: OSB is typically our option that serves as a cheaper alternative to roof and wall sheathing due to its ability to provide consistent strength throughout.