Attic Plywood Thickness

The decision regarding the thickness of plywood to use for the subfloor in the attic has a lot to do with how you intend to use the attic and it also depends on the spacing of the ceiling joists.

Attic plywood thickness.

My attic is located above my garage and currently the former owner had random pieces of plywood placed up there. 11 32 plywood attic dek attic flooring panel attic dek plywood subflooring 3 8 plywood 1 2 plywood 4x8. Some screwed others not. I wanted to add more plywood to the area and wanted to know if any specific type i should use.

Take the measurements for your subfloor and measure enough plywood so that you can cover the entire frame. The previous homeowner may have simply covered the joists with plywood to use the space for storage. I assume 3 4 inch but there are many types brands to choose from. A single 4 pack covers approximately 10 sq.

What is the actual thickness of a sheet of plywood. 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. While this is not the optimal setup it is acceptable to have ceiling joists covered with plywood or osb to use for light attic storage of dead loads. A 3 4 sheet is actually 23 32 thick.

Plywood is often sold in 1 4 1 2 or 3 4 nominal thicknesses but the actual thickness is often 1 32 thinner. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness. Attic storage might be a good idea but other issues such as insulation joist spacing and intended usage should be taken into consideration. Measure the plywood and attic door.

In that case you will need to use 3 4 thick plywood. Plywood flooring thickness is important for proper weight distribution. On center joist spacing. How thick should plywood floor be for attic.

Don t use 7 16 osb as it is intended for external sheathing. In attics built purely for storage purposes you may find 2x6 ceiling joists or in some cases. An attic can be floored with 1 2 cdx plywood if it is being used only for storage. On nov 12 2018.

Purchase half inch 1 27 cm thick plywood to act as your flooring. Attic flooring panels are easy to install with their interlocking edges. However the same can t be said if you are planning on using the space as a living space. As an alternative 3 4 osb can be used.

Or 6 answers.