Install two by four blocking between joists or wherever needed to support edges of the plywood that do not have support from the bottom.
Osb or plywood for attic storage.
Oriented strand board osb board that soaked in my bathtub overnight swelled almost 1 4 in.
Oriented strand board osb is a material with oriented strand board osb is a material with high mechanical properties that make it particularly suitable for load bearing applications in construction.
In attics built purely for storage purposes you may find 2x6 ceiling joists or in some cases.
It is cheap and strong enough for the job.
A viable alternative to plywood this osb board is engineered to prevent any cupping warping or splitting.
Maneuvering heavy 4 x 8 sheets of plywood or osb oriented strand board up to an unfinished attic is sometimes like trying to fit a square peg into a round hole.
Kept high and dry during storage and after installation osb has the same strength and durability as plywood but costs less.
The edges of the 1 2 in.
The previous homeowner may have simply covered the joists with plywood to use the space for storage.
It might seem impossible to haul it up to the attic.
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.
7 16 and 6 00 sounds more like osb than plywood.
To make the job easier use a circular saw to cut the plywood sheet first into 2 2 8 strips which will be much easier to handle.
I ve used 7 16 osb for decking in an attic.
Plywood comes in large sheets.
Osb attic decking has a convenient tongue and groove design for easy installation.
Cut the plywood into manageable strips about 10 inches wide to make the job easier.
And stayed swollen while the plywood remained stable.
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.
Don t store osb in a full bathtub.