Attic Plywood Thickness

3 4 plywood should be enough.

Attic plywood thickness. If your attic joists won t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for light storage you can install inch plywood or. If you plan to finish the floor in the attic and turn the room into a living space however you should always use 3 4 inch. I want to install 4x8 sheets of t g plywood in my attic for extra storage room but there are so many different thicknesses. Plywood is often sold in 1 4 1 2 or 3 4 nominal thicknesses but the actual thickness is often 1 32 thinner.

Plywood roof sheathing 5 8 plywood attic dek 3 8 plywood osb 4x8 11 32 plywood. What s the minimum reasonable thickness for subfloor in my attic. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness. There will be extremely minimal traffic on this floor as i will.

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. The thinner plywood is acceptable when the joist spacing is 16 inches. On nov 12 2018. It s a good idea to rip long thinner strips of plywood that will fit through the attic door.

Attic flooring panels are easy to install with their interlocking edges. A single 4 pack covers approximately 10 sq. Ask question asked 8 years 9 months ago. However the same can t be said if you are planning on using the space as a living space.

Universal attic dek 4 pack made for 16 in. On nov 12 2018. As an alternative 3 4 osb can be used. But there s no real reason to use plywood thinner than 3 4 inch.

The cost savings is insignificant compared to the extra support offered by the thicker material. 1 marked as helpful reply. On nov 12 2018. Purchase half inch 1 27 cm thick plywood to act as your flooring.

Active 8 years 9 months ago. A 3 4 sheet is actually 23 32 thick. Don t use 7 16 osb as it is intended for external sheathing and isn t strong enough to be used as a floor. Take the measurements for your subfloor and measure enough plywood so that you can cover the entire frame.

Viewed 8k times 6. On center joist spacing. An attic can be floored with 1 2 cdx plywood if it is being used only for storage.