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.
Plywood attic floor for storage.
Plywood flooring thickness is important for proper weight distribution.
Attic dek flooring provides additional storage space that supports up to 250 pounds making it easier than ever to get those cluttered spaces organized.
What size plywood for an attic floor.
As an alternative 3 4 osb can be used.
In that case you will need to use 3 4 thick plywood.
Don t use 7 16 osb as it is intended for.
Attic storage might be a good idea but other issues such as insulation joist spacing and intended usage should be taken into consideration.
However the same can t be said if you are planning on using the space as a living space.
Attic flooring panels are easy to install with their interlocking edges.
Attic dek is a specially designed attic floor system that consists of 16 or 24 squares attached to the top of ceiling joists.
Plywood flooring thickness is important for proper weight distribution.
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.