Readers ask: What Thickness Plywood For Subfloor?

What is the normal thickness of subfloor plywood?

The most common thickness of plywood is 1/2-inch, but plywood thickness can range from 1/8-inch to 3/4-inches.

What kind of plywood do you use for subfloor?

Standard plywood can be used for subfloors, but a better material is 3/4-inch tongue-and-groove plywood subflooring. The tongue-and-groove edges interlock to resist movement along the panel edges and create an overall stiffer floor.

What is the minimum thickness of subfloor?

— The thickness of subflooring depends on the spacing of your joists. Minimum thickness should be 5/8 inches for plywood and 23/32 inches for OSB. When joists are spaced 16-19.2 inches apart, subfloor should be ¾ inches for both materials.

Is 12mm plywood OK for flooring?

12mm Plywood The cross-graining technique used in our 12mm ply improves strength, stability and prevents warping, making it excellent for bath panelling, wall lining floors and roofs.

What thickness subfloor is recommended?

The recommended thickness of the plywood subfloor is governed by the spacing of the joists. 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.

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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.

Do you 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.

Can you use treated plywood for subfloor?

Use pressure treated wood in any situation where there’s direct contact between the wood and anything that could supply moisture. Subflooring in the kitchen and bathroom may also be pressure treated since water leaks are common in these rooms and subflooring is inaccessible to the residents.

Can you use Sande plywood for subfloor?

With its ability to be stained and finished any way that you want, it’s certain to create a beautiful piece that you can treasure forever. Alternatively, you might just need something durable for your bathroom subfloor. No matter what your project is, sande plywood might just be the best thing for you.

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.

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What is the best subfloor material?

Plywood is considered the most popular material used for subflooring, it has been used since the 1950s and remains one of the top choices for contractors. Standard plywood works perfectly fine as a subflooring material, but the best option is ¾” tongue-and-groove plywood subflooring.

What thickness plywood should I use for bathroom flooring?

Consider what the top layer of the bathroom flooring will be since some types of plywood are better suited for different flooring. For hardwood, tongue-and-groove CDX plywood rated AC with a 1/2- to 3/4-inch thickness is best. Specifically for subflooring, tongue-and-groove plywood is strong and will reduce squeaks.

What are two disadvantages of using plywood?

Disadvantages of Plywood:

  • It is more expensive than Medium Density Fiberboard (MDF).
  • Because the layers of veneers are seen at the edges, edges have to be finished either with laminate or veneer.
  • It often get splinter from the edges during transportation.
  • It is quite difficult to cut.

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