FAQ: How To Put Plywood On Floor?

What kind of plywood do you use for floors?

CDX plywood is the most popular type of traditional plywood. It’s made with a rough outer layer that typically grades C, D or X. Almost all subfloor plywood is some type of CDX. There’s no reason to buy high grade finished plywood for use as a subfloor if your just going to cover it up with finished flooring.

Can I lay plywood over existing floor?

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.

How do you attach plywood to a subfloor?

Attach the smaller piece to the subfloor with a 1-inch wood screw every six inches in each direction using a power drill. Push the full sheet tightly against the small section of plywood and the wall, and attach to the subfloor with a screw every six inches.

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Which way do you lay plywood subfloor?

Install plywood underlayment smooth side up. To avoid damage to the surface, install underlayment immediately before laying the finish flooring.

How long do plywood floors last?

Plywood Floor Lifespan 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.

Can you put new plywood over old subfloor?

One of the benefits of removing the old flooring is it allows you the chance to fix any loose subflooring or squeaks by re-securing the main subfloor to the floor joists prior to installing the new flooring. With all that being said though the answer is YES you can install New Wood Flooring over the old.

Should you lay plywood over plank subfloor?

Take time to make sure your existing planks are well secured in place. Repair any broken planks. Install a layer of at least ½” or preferably 5/8” ply over the existing planks. Like all wooden flooring products, it’s a good idea to acclimatise your plywood before laying it.

Is it better to use OSB or plywood for subfloor?

The National Tile Contractors Association and the Resilient Floor Covering Institute both recommend plywood for subflooring and underlayment, because it doesn’t have the risk of swollen edges that OSB does. Plywood also has a slight advantage in stiffness, which means that subflooring panels need not be quite as thick.

Is it better to nail or screw subfloor?

Using code-approved screws rather than nails is the best option for avoiding movement. If using nails for subfloor installation, stick with ring-shank nails; smooth nails may withdraw easier, leading to squeaks.

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What do you fasten subfloor with?

When time is of the essence, nailing is the quickest fastening option when installing subfloor. Regardless of firing mode, an air nailer lets you drive nails within seconds of each other, which saves time compared to using a screw gun.

How thick should a plywood floor be?

The minimum thickness of plywood for subflooring is about 5/8 inch. Since it does not hold fasteners as well as plywood, OSB must be a little thicker, or at least 23/32 inch. There are several factors that determine what subfloor thickness is optimal for added benefits like insulation.

Do I need to glue plywood to subfloor?

The answer: Glue. Although using a subfloor adhesive (or subfloor glue) is not required by code, it is a standard practice that can help prevent floor squeaks by reducing the chance for movement at the panel-to-joist connection. A quality subfloor adhesive will also increase the overall stiffness of the floor.

Can you install plywood over particleboard?

When to Add Plywood If you’re stapling laminate flooring around the edges of the room, you should be successful over the particleboard. In that case, it’s a good idea to lay plywood over the particleboard before laying carpet. Plywood is the best idea if laying hardwood or tile.

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