Plywood vs. OSB: Which One Should You Use for Your Next Project?

Whether you’re building a backyard shed, remodeling a room, or tackling your first big DIY project, one of the first choices you’ll face is what kind of panel to use—plywood or OSB (oriented strand board). Both are great options, but they have different strengths depending on your goals, your space, and your budget.

At Ace Building Materials, we’re here to make sure you feel confident and supported, no matter how big or small your project may be. Let’s break down the basics of plywood and OSB so you can choose the right one for your next build.

What Is Plywood?

Plywood is made by layering thin sheets of wood—called veneers—and gluing them together in alternating directions. This makes it super strong and resistant to warping or cracking over time.

People love plywood for:

• Subfloors and walls
• Roofs and ceilings
• DIY furniture, shelving, or storage
• Home projects where appearance matters

Why homeowners like it:

• It’s strong, stable, and holds nails and screws really well
• It dries out more easily if it gets wet
• It has a smooth surface that’s great for painting or staining

What Is OSB?

OSB is made from strands of wood that are mixed with resin and pressed into large, solid boards. It looks more “chip-like” than plywood, but don’t let that fool you—it’s very strong and used in lots of modern homes.

People often use OSB for:

• Wall and roof sheathing
• Subflooring
• Projects where the panels won’t be visible

Why homeowners like it:

• It’s more affordable than plywood
• It comes in big panels, so you can cover large areas quickly
• It’s consistent and reliable for structural projects

How Do They Compare?

Price

If you’re trying to stay on a tight budget, OSB is usually the more affordable choice. You’ll save a bit more, especially on larger builds.

Moisture

Plywood handles moisture better, especially if there’s any chance of rain during your project. It dries faster and doesn’t swell as much as OSB.

OSB is fine for enclosed spaces (like inside walls or floors), but it doesn’t love getting wet.

Ease of Use

Plywood is easier to work with if you’re cutting pieces or screwing into them—it’s a little more forgiving and holds hardware better. OSB is heavier and denser, which makes it a bit trickier for first-timers.

Look & Finish

If your panel will be visible (like for a shelf, a table, or a wall in a playroom), plywood is the better-looking option. It has a smoother, more natural wood grain. OSB is best used in areas that will be covered up.

When Should You Use Plywood?

Choose plywood if:

• You’re working in a space that might get a little damp
• The panels will be visible or you want to paint or stain them
• You’re building something where strength and appearance matter
• You’re new to DIY and want something easier to handle

When Should You Use OSB?

Choose OSB if:

• You’re on a budget
• Your project is fully covered (like behind drywall or under flooring)
• You need large panels and consistency
• You’re building something big, like a shed, garage, or wall frame

Ask the Ace Team!
At the end of the day, both plywood and OSB can be great choices—it just depends on the job. If you’re not sure which one to go with, our team at Ace Building Materials is here to help. We work with both professionals and homeowners every day, and we’re always happy to walk you through your options.

Stop by our store in Van Nuys or give us a call—we’ll make sure you get the right materials, the right advice, and the friendly service you deserve.