Installing attic flooring for light storage only.
Osb for attic floor.
23 32 cat ps2 10 tongue and groove osb subfloor application as 4 x 8.
In 2001 oriented strand board surpassed plywood in terms of square footage produced.
Osb is now used for about 70 percent of all floor wall and roof sheathing in north america.
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.
Moisture also affects the strength of plywood.
7 16 and 6 00 sounds more like osb than plywood.
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.
I ve used 7 16 osb for decking in an attic.
For joists spaced.
Attic pine oriented strand board common.
Item 12218 model 637367.
X 47 75 in install over insulation or unreliable attic flooring boards lock together using a tongue and groove design.
In addition to the visible surface flooring material the carpet tile or hardwood there is usually an underlayment and beneath that is a subfloor that serves as the foundation and structural reinforcement for the floor.
So while exterior glued plywood can be used outdoors it works best.
Here are a few tips to help you and your house get through the attic flooring installation job unscathed.
It is cheap and strong enough for the job.
You can install inch plywood or oriented strand board osb in 4 foot by 8 foot panels over existing 16 inch oc joists.
Osb is not attractive enough to serve as a floor covering not only is the chip board appearance unattractive but the surface is also often marked with grid lines and manufacturer markings.
While osb oriented strand board is generally cheaper than plywood it is heavier and not as stiff as plywood and can result in soft squeaky floors under weight the biggest complaint against osb is that it doesn t handle moisture very well so it is more suited for indoor use.
Osb when exposed to the weather will eventually swell and bubble up minor instances of bubbling can be sanded but for the most part the osb is irreparable and should be replaced.
The subfloor consists of sheet materials that are nailed or screwed to the joists to.
Building codes the engineered wood association architects and most builders rate plywood and oriented strand board obs sheathing equal in strength and durability.
It is too thin for a floor in a room but for a lightly used attic it is plenty.
