Is 3/4 plywood OK for subfloor?

Is 3/4 plywood OK for subfloor?

The spacing of the joists governs the recommended thickness of the plywood subfloor. Some experts suggest that 15/32-inch plywood should be standard if the underlying floor joists are spaced 16 inches apart or less, but you should use slightly thicker 3/4-inch plywood for joists spaced further apart.

How thick should my sub 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.

What is the best material for sub flooring?

Plywood

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.

How much is 3/4 tongue-and-groove?

3/4 x 4 x 8 Sturd-I-Floor Tongue & Groove OSB Subfloor at Menards

Is it better to use OSB or plywood for subfloor?

OSB has a lower resale value than plywood due to its lower strength. For this reason, few homeowners prefer OSB in their homes. Apart from costs, plywood is superior in all the other areas, such as the strength of the structure. For this reason, it’s a superior material for use on the subfloor.

Do you need two layers of subfloor?

That’s the usual approach. Almost no one puts down double-thick subfloor in residential applications (for cost and handling reasons), and both layers need to be fastened to joists. Only thin underlayment can be fastened just to the subfloor.

Is 3/4 subfloor enough for tile?

CLICK TO ENLARGE Plywood underlayment, glued and screwed to a nominal 3/4 in. plywood subfloor, makes a sturdy substrate for ceramic tile. The uncoupling (crack isolation) membrane helps prevent cracking in the tiles and grout.

What can be used as sub flooring?

There are four primary materials used as subfloor: plywood, oriented strand board (OSB), concrete, and high-performance panels. There are other subfloors materials out there, but they are used in more niche situations.

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.

Do you need tongue and groove for subfloor?

For subflooring, you use tongue and groove plywood. The tongue and groove are only along the 8 foot edges. On the four foot edges, your seams will fall on joist tops, so no need for tongue and groove. But to start off, we will need to remove the tongue so the plywood is tight with the exterior ICF walls.

Is it better to nail or screw subfloor?

Screws are preferred over nails for subfloor and underlayment installations as they provide strong and tight connections that help prevent the floor from squeaking. Before starting your next subfloor or underlayment installation, make sure you have the right subfloor screw gun for the job.

What are 3 common subfloor materials?

When it comes to a home flooring system, there are typically four subfloor options to choose from.

• Oriented Strand Board. Often mistakenly referred to as “plywood,” oriented strand board is the most common material used for a subfloor.
• Plywood.
• Particleboard.
• Concrete.

Should you glue down a 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.

Do you need to fill gaps in subfloor?

You don’t have any control over a subfloor that you just uncovered by removing carpeting or some other flooring, however, and it’s important to fill existing gaps to guarantee thermal and moisture isolation and protect your new flooring.

Can I tile over 3 4 plywood?

A single sheet of 3/4″ inch plywood is normally not adequate as a substrate for tile. The tile industry recommends a subfloor that’s at least an inch-and-a-1/4 thick.

How thick does a subfloor under tile need to be?

1 1/8″ thick
The subfloor under the tile should be at least 1 1/8″ thick, with a minimum of 5/8″ thick exterior grade plywood topped by 1/2″ cement backer board.

Should I glue down subfloor?

What type of plywood should I use for subfloor?

Should you stagger subfloor?

More plywood sheets are nailed down, staggering seams for a stronger fit. When you build, you always stagger. It’s what makes a pile of boards and materials into a solid structure. Stagger stagger.

Is plywood or OSB better for subfloor?

Should I glue subfloor to joists?

How to Adhere Your Subfloor Panels to Joists. To glue or not to glue? 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.

What is the most durable subfloor?

plywood building materials are the best structural panels for subfloor. Plywood is the most common material and is made from multiple plies of thin sheets of wood oriented in opposite directions for structural integrity. Plywood is recognized because of its strength but costs more than OSB.

Is it better to screw or nail subfloor?

Is tongue and groove necessary for subfloor?

For subflooring, you use tongue and groove plywood. The tongue and groove are only along the 8 foot edges. On the four foot edges, your seams will fall on joist tops, so no need for tongue and groove.

Can I caulk gaps in subfloor?

Fortunately, you can easily fill large gaps in your plywood subfloor using cement-based caulk, wood strips, shims, or rope.