Standard Plywood Sizes (Width, Length, and Thickness)

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We all know plywood sheets are commonly used in making furniture and cabinetry, but did you know they come from different wood species with various sizes available in the market? If you’re unfamiliar with this material, chances are you’ll use the wrong type of plywood for your projects. 

Here’s a brief look at standard plywood sizes discussed by our wood experts to avoid this mistake.  

Standard Plywood Sheet Sizes

Plywood sheets are manufactured with layers of wood glued together, so their material sizes vary greatly. However, you must know that a standard sheet of plywood is often sold at 4 x 8 feet and 5 x 5 feet. 

person carrying plywood

These sizes also include different thicknesses that range from thin sheets sized ½ inch thick to non-standard thickness standards of ⅛ inch to ¾ inch.  Additionally, manufacturing companies offer specialty sizes for this material, which we’ll discuss further below. 

Plywood Dimensions: Width and Length

Any type of plywood manufactured and sold in the US is measured using standard English units. In other countries like Europe, Canada, and Japan, you’ll notice that most of their solid wood materials are based on the metric system. 

As previously mentioned, the standard sizes for these wood sheets range from 4 x 8 feet, which is 1219 mm by 2438 mm when translated to metric dimensions. If your next project requires oversized sheets, you can opt for utility-grade plywood as wide as 5 feet and as long as 6 to 10 feet. 

Interesting Read:

Plywood Thickness: Actual vs. Nominal

You may not know, but the type of plywood you’ll have to buy for your project includes choosing the right material thickness. And while this specification often ranges from ⅛ inch to 1 ¼ inch, you have to remember that it does not account for the actual thickness of the wood. 

marine grade plywood

When you see the term nominal thickness, it excludes the sanding process your material has to go through. You’ll have to remove 1/32 inch from it to get sanded plywood with a smooth surface before you can determine the actual thicknesses of these materials. 

The actual size is often processed when the plywood comes out from sanding during manufacturing. Nevertheless, here are the actual thicknesses you’ll encounter when buying pre-cut plywood sheet panels. 

Also Read: Will Home Depot Cut the Plywood For You?

Size Tolerances

Plywood materials are thin wooden sheets with layers glued together and aligned perpendicularly to the wood grain. With this structure, the external layers of these sheets indicate the plywood’s grade and what projects you can use it for. 

cutting tools at Home Depot

Sanded plywood is considered top-grade for making cabinets and furniture mainly because its external layer is free of defects, regardless if it’s hardwood or softwood plywood. 

Related Topic: Cabinet Plywood Grades

These top-grade materials have size tolerances (specifically for thicknesses) smaller than the ones sold as utility-grade. The size tolerance for utility-grade sheets is 1/32 inch thick, while cabinet plywood comes with 1/64 inch thickness.  

Types of Plywood: Hardwood vs. Softwood

Since softwood and hardwood plywood have different components, they’re sold in different sizes and thicknesses. For a hardwood plywood sheet, you can buy the right size by selecting one of its variations; 2 x 2 ft, 2 x 4 ft, and 4 x 4 ft. 

The hardwood sheet you’re looking for could be a layer of maple lumber, baltic birch plywood, or other trees with the same characteristics. 

Plywood

As for the softwood variation, you can find a wood sheet available in a common size range of 4 x 8 ft with ¾ inch thickness. It comes from softwood trees like pine[1], cedar, and many more. Since it’s a sheet with a rough surface, it works well with building a roof, walls, and subfloor. 

Core Types of Plywood

MDF Core

Medium-density fiberboard (MDF) is a heavy wood type unsuited for home construction. You can encounter this plywood core in crafting projects or speaker cases. 

Veneer Core

It’s the most common core type with wood-layered veneers glued in a single plane and angle to form a strong structure. Typically, you can buy these materials with 5 to 7 veneers, but you can opt for ones with 13-ply if you’re using them for heavy-duty projects.  

Particle Board Core

These are the most affordable core types, but they’re also not water-resistant and prone to damage. You can rely on these materials if you’re working on workpieces that don’t require much durability or strength. 

What are Hardwood Plywood Veneers?

Hardwood veneers are often aesthetically pleasing, so it’s not surprising that they’re used for decorative purposes. According to our resident woodworkers, its structure and design aren’t suited for building a cover for the roof, but it’ll work well with furniture and cabinet building.

Veneer

Here are the specific wood species that are highly compatible to use as hardwood veneers:

How to Choose the Right Plywood For Your Project

Ultimately, the plywood sizes you should consider depending on the kind of project you’ll be doing. After all, these wood materials offer different thicknesses and sizes. On top of that, they come from varying wood species with different durability and characteristics. 

FAQ

What are the standard plywood sheet sizes?

Standard plywood sheet sizes are sold in 4×8 and 5×5 ft variations. 

Which plywood is ideal for roofing?

External plywood is the ideal option for roofing purposes. Despite being more affordable, these materials are easier to install and durable enough to withstand harsh weather conditions.

What’s the cheapest plywood type?

The most budget-friendly plywood options are the ones categorized under grade D. These materials are not sanded or repaired, so their defects are noticeable to the naked eye. 

Conclusion

Regardless of what wood you’re using, knowing how it’s measured and categorized will save you from wasting money and time on the wrong materials. 

It may seem simple, but trust our team when we say that these grades and sizes can get tricky without properly understanding their uses and worth. Fortunately, everything you need is in this post.   

Robert Johnson is a woodworker who takes joy in sharing his passion for creating to the rest of the world. His brainchild, Sawinery, allowed him to do so as well as connect with other craftsmen. He has since built an enviable workshop for himself and an equally impressive online accomplishment: an extensive resource site serving old timers and novices alike.
Robert Johnson
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