Readers ask: What Is The Required Size Of Plywood For Bathroom Floor Kansas?

How thick should the plywood be for a bathroom floor?

Make Sure Your Subfloor is Structurally Stable The installation guide for 1/4 inch HardieBacker recommends having wood subfloors made of 5/8 inch exterior grade plywood or OSB (oriented strand board) that is 23/32 inches thick.

What plywood should I use for bathroom floor?

Plywood as a Subfloor Material Traditionally, exterior grade plywood has been the subfloor material of choice for many bathroom flooring projects. Plywood is made by gluing alternating layers of wood veneer. CDX plywood (¾”) in particular is used often because it has a high level of resistance to moisture and humidity.

How thick should plywood be for flooring?

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.

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Can you use 1/2 inch plywood flooring?

The thicknesses are as follows: 7/16-, 15/32- and 1/2-inch-thick panels require joists spaced 16 inches on center; 19/32- and 5/8-inch-thick panels require joists spaced 20 inches on center. For retrofitting older construction, 23/32- and 3/4-inch-thick panels can be used over 24-inch on center joists.

Can you use 1/4 inch plywood flooring?

If you have any squeaks add some screws to the original subfloor at the joists. The 1/4 inch ply will add no real strength to the flooring system,Just staple it.

How do you waterproof a bathroom subfloor?

Apply a bead of the silicone caulk around the entire perimeter of the subfloor. Place the angled part of the nozzle flat against the crevice between the subfloor and the bottom of the wall and squeeze the trigger slowly. Move the caulk gun evenly along the crevice to apply a bead of caulk.

Can I tile over plywood on a bathroom floor?

No matter what you’re told at a home center, it’s not a good idea to install tile directly over plywood, especially in a damp area like a bathroom. Because plywood expands and contracts beneath the ceramic tile, grout and tile failure (loose tiles and cracked, crumbling grout) is just a matter of time.

Is it necessary to waterproof bathroom floor?

Bathrooms are the main wet area in the house. Therefore, you need to waterproof the area so that water does not get into the substructure of the house and cause major structural damage. It involves setting up a waterproof barrier around the floor and walls of the bathroom, including the shower.

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Can you tile directly onto plywood?

Tile can be laid on plywood. But do not install tile directly on the plywood subfloor itself. Use an intervening layer of a sheet of thinner plywood.

What is the best plywood for underlayment?

Poplar or Birch Plywood with a fully sanded face and exterior glue. Lauan Plywood, when used as an underlayment, should be Type 1 (Exterior). The best grade is BB and the next best is CC, while OVL (overlay grade) is the minimum acceptable face grade. There is a wide variety of quality and species classed as lauan.

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.

What kind of plywood is best for flooring?

In my experience as a custom home builder, traditional plywood is the best for flooring followed by CDX and then OSB. A strong subfloor is a very important part of building a strong house. If the subfloor plywood isn’t right, your tile could crack, wood floors might squeak and gaps may open up between flooring planks.

Can I walk on half inch plywood?

Joist Spacing and Attic Use The joist spacing in some attics is 24 inches, and 1/2-inch sheets will sag and possibly break when spanning that distance. Thinner plywood can flex when you walk on it — even with 16-inch spacing — and this will damage the flooring.

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Is it OK to put plywood in the attic?

An attic can be floored with 1/2″ CDX plywood, if it is being used only for storage. However, the same can’t be said if you are planning on using the space as a living space. In that case, you will need to use 3/4″ thick plywood. The building code allows for the use of OSB in place of plywood for subflooring.

What is the best material to use for a subfloor?

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.

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