Quick Answer: How Thick Should Plywood Be For Flooring?

What thickness plywood should I use for flooring?

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.

What type of plywood is used for flooring?

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.

Is 1 2 plywood strong enough for a floor?

Plywood Thicknesses Thick plywood sheets are durable, but they’re also heavy, and it may be safer to use 1/2-inch plywood — which is actually 15/32 inch thick — to avoid loading the ceiling joists with extra weight.

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How thick does plywood have to be to walk on?

Sizing the Plywood No matter what the spacing is on your ceiling joists, 3/4-inch plywood should be used if you plan on walking on it. If you plan on placing the plywood around the perimeter of the opening or door and using it only to store light boxes or materials, 1/2-inch-thick plywood should suffice.

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 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 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 are the 3 types of plywood?

Although specialty plywood can have any number of plies above three, most plywood is categorized as 3-ply, 5-ply or multi-ply.

  • 3-ply is one of the most common types of plywood.
  • 5-ply is a versatile type of plywood that is about 4-millimeters thick.
  • Multi-ply is a catchall term for plywood with seven or more plies.
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What is the strongest plywood?

If you ever wondered “what is the strongest plywood?” The answer is Marine plywood. It is the strongest and toughest of all plywood on the market. It is bonded with high-quality glues to make the plies structurally solid and resistant to moisture.

How much weight will 3/4 plywood support?

A 12-by-36-inch piece of 3/4-inch fir plywood can easily support 50 pounds.

Is MDF stronger than plywood?

MDF is ideal for cutting, machining and drilling, since it does not chip easily. On the other hand, plywood is a much more stronger material, which can be used for doors, floors, staircases and outdoor furniture.

Can I use 1/2-inch plywood for shed floor?

Use 1/2-inch pressure-treated plywood in a light-duty shed. For basic storage of hand tools such as rakes, shovels, trimmers and others, 1/2-inch pressure-treated plywood as a shed floor will be sufficient.

How much weight can quarter inch plywood?

For example; a 12-by-36-inch piece of 1/4-inch plywood will only support about 5 lbs. before bending.

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.

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