Attic Decking Thickness

Osb attic decking has a convenient tongue and groove design for easy installation.

Attic decking thickness.

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. Purchase half inch 1 27 cm thick plywood to act as your flooring. I need more storage space up there. 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.

No matter what the spacing is on your ceiling joists 3 4 inch plywood should be used if you plan on walking on it. 19 32 and 5 8 inch thick panels require joists spaced 20 inches on center. Measure the plywood and attic door. Standard joist spacing for the installation of attic flooring materials is 16 inches on center oc meaning the distance from the center of one joist to the center of the next joist is 16 inches.

Use the tongue and groove feature to lock multiple boards together and improve the organization of your storage space. The strongest lightest easiest raised attic boarding system available insulated your attic and lost your storage. I ll nail the sheets down to the joists. The thicknesses are as follows.

Attic dek universal attic dek 4 pack made for 16 in. Provide additional storage space to your home or garage by selecting this excellent attic dek universal attic dek made for on center joist spacing. 7 16 15 32 and 1 2 inch thick panels require joists spaced 16 inches on center. I m a big guy 6 3 and around 230 so the guy at home despot suggested one of the above.

Coronavirus update september 2020 we are fully open and able to. Enjoy a clean look and increase the usable square footage of your attic by multiples of 8 sq. 5 8 is cheaper 17 00 a 4x8 sheet vs 21 44 a 4x8 for 3 4 can i get away with the 3 4. Get it back with loftzone storefloor strong enough to walk on and easy to fit join tens of thousands of happy customers worldwide.

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. Take the measurements for your subfloor and measure enough plywood so that you can cover the entire frame.