What Type Of Plywood To Use For Attic Floor

In that case you will need to use 3 4 thick plywood.

What type of plywood to use for attic floor.

But there s no real reason to use plywood thinner than 3 4 inch. Cut the plywood into manageable strips about 10 inches wide to make the job easier. For joists spaced 24 inches oc use thicker inch plywood to prevent sagging between them. If you re familiar with basic carpentry and framing techniques installing decking for attic storage.

I wanted to add more plywood to the area and wanted to know if any specific type i should use. 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. The cost savings is insignificant compared to the extra support offered by the thicker material. As an alternative 3 4 osb can be used.

Don t use 7 16 osb as it is intended for external sheathing and isn t strong enough to be used as a floor. Plywood comes in large sheets. The national wood flooring association recommends a minimum plywood panel thickness of 7 8 inch for joist spans of 19 2 to 24 inches and a minimum plywood panel thickness of 5 8 inch for joist spans of 16 inches or less. My attic is located above my garage and currently the former owner had random pieces of plywood placed up there.

I assume 3 4 inch but there are many types brands to choose from. Some screwed others not.