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.
Osb or plywood for attic storage.
Oriented strand board osb board that soaked in my bathtub overnight swelled almost 1 4 in.
Don t store osb in a full bathtub.
Install two by four blocking between joists or wherever needed to support edges of the plywood that do not have support from the bottom.
I ve used 7 16 osb for decking in an attic.
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.
Use the tongue and groove feature to lock multiple boards together and improve the organization of your storage space.
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.
Plywood comes in large sheets.
The edges of the 1 2 in.
The previous homeowner may have simply covered the joists with plywood to use the space for storage.
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.
Kept high and dry during storage and after installation osb has the same strength and durability as plywood but costs less.
It is too thin for a floor in a room but for a lightly used attic it is plenty.
It might seem impossible to haul it up to the attic.
And stayed swollen while the plywood remained stable.
It is cheap and strong enough for the job.
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.
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.