Attic Decking Plywood Thickness

Cdx plywood should be a minimum of 7 16.

Attic decking plywood thickness.

For joists 24 on center 3 4 plywood is what i would use. Attic flooring panels are easy to install with their interlocking edges. Another product by racor called. These lightweight easy to manage panels can be installed by even the most inexperienced homeowner in about 15 minutes.

Take the measurements for your subfloor and measure enough plywood so that you can cover the entire frame. A single 4 pack covers approximately 10 sq. Purchase half inch 1 27 cm thick plywood to act as your flooring. But there s no real reason to use plywood thinner than 3 4 inch.

You ll need to make sure that the plywood can fit through your attic door. On center joist spacing. That s what you should find on your home s main flooring areas. Attic flooring panels are easy to install with their interlocking edges.

The recommended thickness of the plywood subfloor is governed by the spacing of the joists. Universal attic dek 4 pack made for 16 in. The thinner plywood is acceptable when the joist spacing is 16 inches. Cdx plywood is traditional wood plywood made from thin layers of lumber known as veneers.

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. Several list advise regarding 4 x 8 sheets of plywood flooring being laid on top of joists for decking material in an attic along with pull down access stairs. If your joists are 16 on center then you could get away with 1 2 plywood. If you plan to finish the floor in the attic and turn the room into a living space however you.

The cost savings is insignificant compared to the extra support offered by the thicker material. Obviously using 3 4 plywood on 16 joist centers is also good. You need 3 4 inch plywood. Glue is sprayed between each layer and the sheet is hot pressed.

Plywood roof sheathing 5 8 plywood attic dek 3 8 plywood osb 4x8 11 32 plywood. 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. Measure the plywood and attic door.