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The Daily Insight

Can you finish plywood floor

Author

Sarah Silva

Updated on April 17, 2026

Creating finished plywood floors isn’t an overnight project. You’ll save money, but you’ll need plenty of time to complete the project. When you’re done, you’ll have a durable, uniquely designed floor you can take pride in.

What is a suitable finish for plywood flooring?

Any type of plywood used for flooring should be finished properly. Even plywood with waterproof glue can benefit from finishing. You don’t need to put a glassy finish on the plywood, only seal it against moisture penetration. The edges of the plywood, even if the plywood is rated waterproof, are not sealed.

How do you make plywood look like a plank floor?

  1. Prime the plywood by applying a latex primer with a paint roller. …
  2. Examine some wood samples, such as hardwood floors or cabinetry. …
  3. Paint the plywood your base color with a roller and leave it to dry at least four hours.

How can I make my plywood floor look good?

  1. Step 1: Apply the Base Coat. Brush or roll a coat of floor-grade primer to seal the grain and prevent bleed-through, wait for it to dry, then apply a coat of floor enamel. …
  2. Step 2: Draw Planks. …
  3. Step 3: Gouge the Lines and Stain the Floor. …
  4. Step 4: Make a Glaze. …
  5. Step 5: Paint the Grain. …
  6. Step 6: Apply Clear Finish.

Can you seal plywood flooring?

One way to preserve plywood flooring is to coat it with layers of clear sealant, which will prevent the plywood from becoming damaged by moisture or wear. Sealant can be painted over a plywood floor using tools that are readily available at any hardware store, such as paint rollers.

How long do plywood floors last?

How long does plywood flooring last? Although plywood itself is very durable, many other factors come into play when it comes to durability. The plywood can last up to twenty years, sometimes even more. But, if you regularly expose it to water (let alone leave it in the rain), the lifespan can drastically shorten.

Does plywood need expansion gap?

APA recommends a 1/8-inch space between panel edge and end joints. Plywood and oriented strand board (OSB), like all wood products, will expand or shrink slightly with changes in moisture content. If the wood structural panels are tightly butted, there is no room for expansion and buckling can occur.

How do you seal plywood indoors?

Using an epoxy sealer is probably the most popular way to seal plywood against the elements. The epoxy is usually found in paint or spray forms. The advantage that epoxy provides is that it makes the plywood stronger, in addition to waterproof.

Does plywood look good stained?

Plywood can be stained in many different colors. … When building with plywood, you will often want to stain and finish the surface to enhance your project’s beauty. Staining plywood typically requires the use of special gel stains, but by preconditioning the wood you can use any wood stain.

Can I stain plywood floor?

A floor made out of plywood can be very durable, but in order to keep it looking nice, you will need to stain it. By its nature, wood is susceptible to wear and tear and can be damaged easily. Staining a plywood floor is a project you can do yourself. Sanding equipment can be rented at a home improvement store.

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How do you make plywood look like shiplap?

  1. Step 1: Rip plywood into 6 inch wide planks. …
  2. Step 2: Router planks. …
  3. Step 3: Cut planks down. …
  4. Step 4: Paint shiplap planks. …
  5. Step 5: Remove baseboards. …
  6. Step 6: Scrape wall under baseboards. …
  7. Step 7: Remove outlets and/or light switches. …
  8. Step 8: Attach bottom boards with level.

How do you make plywood not look like plywood?

A very nice black steel effect can be made on plywood, very easily. Before doing so, sand the plywood smooth with 220 grit sandpaper and then apply a single coat of sanding sealer. Allow the sanding sealer to dry, and then lightly sand it with 220 grit sandpaper to eliminate any dust specks sticking up. What is this?

Should I seal plywood subfloor?

Installing a Waterproof Subfloor They are essential for floors that are above grade but can also be placed on concrete. … To waterproof the plywood yourself, first repair it if needed and then sand it down and clean it off. Use a waterproof sealant, stain or paint and apply two to three layers.

Do I need to seal plywood indoors?

Plywood is a durable material for projects, but it is necessary to seal plywood to protect it against water damage and rotting, and to ensure a long-lasting finish. Once it is sealed, you may finish your project with paint or polyurethane.

What can you put on plywood to make it waterproof?

Liquid Latex Spray – on or paint – on Latex is another effective plywood protector. It’s available at hardware stores and forms a waterproof layer on the surface of the plywood to protect it from moisture. Liquid Latex products are easy to apply and relatively inexpensive.

How do you fill gaps between plywood subfloor?

Fill Plywood Subfloor Gaps An effective strategy for filling large gaps is to mix patching compound to a stiff, mortar-like consistency, trowel it into the plywood subfloor gaps and wait for it to stiffen before troweling it smooth. Some sanding may be needed when it sets completely.

How do you fill gaps in plywood?

Lift the edge of the one sheet of plywood until you can insert the syringe over the void. Inject the filler into the gap and fill the void until the filler is flush with the surface of the wood. Apply a layer of adhesive on the surface of the bottom piece of plywood.

What causes plywood to buckle?

Buckling of wood structural panel sheathing such as plywood or oriented strand board (OSB) occasionally results when increased moisture conditions cause the wood to expand. Such buckling may occur between supports or between nails along supports. … This results in swelling or shrinking of the wood.

Is plywood flooring cheaper than laminate?

It’s Affordable When it comes to the flooring material, only laminate flooring beats plywood in terms of the price. Otherwise, all other materials such as hardwood, tiles, bamboo and the rest are costlier to buy than plywood.

Can you leave subfloor as floor?

Concrete subflooring is acceptable as regular flooring, as long as it’s in a moisture-proof environment. Consider the long-term effects of leaving your subflooring exposed.

How thick should plywood be for flooring?

Some experts suggest that 15/32-inch plywood should be standard if the underlying floor joists are spaced 16 inches apart or less, but slightly thicker 3/4-inch plywood should be used for joists spaced further apart.

Is it better to paint or stain plywood?

painting or staining plywood You can paint or stain plywood. It doesn’t really matter. However if you go down in grades the surface is going to be rougher and require more work, in addition to the quality of the material declining.

Can you varnish plywood?

Choosing a varnish or lacquer. Finishing plywood, like any solid wood, generally refers to the application of either varnish or lacquer. … Both provide a nice luster, with lacquer able to be buffed to a higher shine.

How do Marines treat plywood?

Since marine plywood is typically used underwater, you’ll need to treat every surface of the wood with sealant. We prefer clear, penetrating epoxy because it works its way deep into the wood, dries transparent, and requires less maintenance than other types of sealant.

Can you put polyurethane on plywood?

Apply high-gloss polyurethane, paint or stain to the face of the plywood using a natural-bristle paint brush. Polyurethane, available for indoor or outdoor applications, is a clear protectant that will seal the plywood.

How do you protect plywood?

  1. Polyurethane Varnish. One of the best methods to seal plywood edges outside is by applying exterior polyurethane varnish. …
  2. Water-Based Stain. Cover the entire surface of the plywood with a coat of any exterior water-based stain. …
  3. Water Seal.

Can you paint straight onto plywood?

For plywood projects, water-based acrylic-latex paints are generally the easiest to work with. … Wet the brush before painting, and apply in the direction of the top grain. You will usually need at least two coats for a good finish – be sure to let the paint fully dry between coats.

Is 12mm plywood OK for flooring?

Due to our 12mm Hardwood Plywood being a structural product – it can be used in sheds for roofing and flooring too. An interesting application for 12mm Ply is Plywood pegboards – a quirky addition to any home, plus they’re super easy to build.

Can you put plywood over wood floors?

When laying it over an existing floor, a thinner plywood panel is acceptable; it should be at least 1/4 inch thick. Particle board can be used, but it’s not as strong as plywood and is extremely susceptible to moisture damage.

Can plywood be used as shiplap?

The most common (and affordable) way to re-create a shiplap look from scratch is to use plywood. Look for ¾-inch AC plywood (which is pre-sanded on one side) and avoid the cheapest variety of plywood (which is rough on both sides and has a tendency to chip).

What is the cheapest way to buy shiplap?

The cheapest way to get thin wood shiplap strips at an exact height is to cut them out of 1/4″ plywood or MDF sheets (I went with maple plywood sheets because they seemed to be the smoothest of the 1/4″ plywood options at Lowes).