What Plywood Should I Use For Bathroom Floor?

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.

Can you use plywood for bathroom floor?

Plywood that is five-eighth inch thick also available for flooring, but using it restricts joist spacing and the types of finished flooring. Tongue-and-groove plywood subfloor material is span rated for use on floors and provides the necessary support in bathrooms for heavy floors and water-filled tubs.

what is the best underlayment for a bathroom floor? Rigid Underlayments It depends on your situation, but 1/4- to 1/2-inch thick AC grade plywood tends to be the best flooring underlayment for many dry applications (under the hardwood, laminate, and engineered wood). The A-graded side is smooth enough even for the thinnest vinyl flooring.

what kind of plywood do you use for floors?

While OSB is the most popular structural panel, CDX plywood is the most popular type of traditional or “veneer” plywood. CDX plywood is like other laminate plywoods, but the outer layers of laminate are grades “C” and “D,” which means they are cosmetically rough and contain many imperfections, thus lowering their cost.

How thick should a bathroom subfloor be?

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.

How thick should Plywood be for flooring?

The thickness of your plywood subfloor depends on the joist spans. The National Wood Flooring Association recommends a minimum plywood panel thickness of 7/8-inch for joist spans of 19.2 to 24 inches, and a minimum plywood panel thickness of 5/8-inch for joist spans of 16 inches or less.

How thick should Plywood be under tile?

Tile installed over wood floor systems MUST have a minimum of 1-1/4 inches of solid material beneath it. This means you can have a 3/4 inch wood subfloor covered by 1/2 inch plywood, cement board, or approved gypsum fiber underlayment.

How do you waterproof a bathroom subfloor?

How to Waterproof a Bathroom Plywood Subfloor Cut the end of the silicone caulk nozzle at a 45 degree angle using a utility knife. Install the silicone caulk tube into the caulk gun and push the plunger into the back of the tube. Apply a bead of the silicone caulk around the entire perimeter of the subfloor.

Can I lay tile directly on plywood?

While you can lay tile directly over a concrete slab using thin-set adhesive, don’t make the mistake of applying tile directly to a plywood subfloor. Even if you use a waterproof underlayment membrane, the floor will still be either 1/4″ or 1/2” higher than the subfloor, plus the thickness of the tile and adhesive.

How do you prepare a floor for vinyl flooring?

Concrete Subfloor Test the floor for moisture. Clean the floor with a wet-dry vacuum to remove any dust and debris. Pass a carpenter’s level across the surface of the concrete floor to check for levelness. Stir ready-to-use floor patching compound with a paint stirring stick.

How many layers of plywood do you need for a subfloor?

Personally, I would also make sure the floor joists are close enough together to give good support. Two plywood layers would span 24 inches in most cases, but if you want to get by with one layer, spacing the joists at 16 inch centers will give you a better floor.

Can you mop plywood floors?

Dip just the tips of a stiff broom in the water and brush it along the floor. When you finish with a small area, dry up any remaining moisture with a dry mop or old towels. Remove the moisture as quickly as possible to avoid any damage to the wood. When the entire floor is clean, allow it to dry completely.

Do I need to glue plywood to subfloor?

On the 3/4″ subfloor, you have the right idea. Use subfloor adhesive, and screw 8″ at edges, 12″ in field. For the 1/2″ underlayment, ideally, you want to screw every 6″ all across the panel. Adhesive will help you here, as the subfloor plywood will have voids in spots that will not hold a fastener.

How do you finish a plywood floor?

You can treat planks with wood bleach for a sun-kissed, weathered look, or stain them to match furniture or trim. If you choose to stain plywood floors, however, apply a sanding sealer to the surface of the planks first, which will help the stain penetrate evenly.

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