Osb For Attic Floor

What size plywood for an attic floor.

Osb for attic floor.

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. 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. 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. So while exterior glued plywood can be used outdoors it works best. Moisture also affects the strength of plywood. 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.

Attic pine oriented strand board common. A typical wood framed residential flooring system is more complicated than you think. 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. Here are a few tips to help you and your house get through the attic flooring installation job unscathed.

Platforms don t have to be plywood. The subfloor consists of sheet materials that are nailed or screwed to the joists to. It is too thin for a floor in a room but for a lightly used attic it is plenty. 23 32 cat ps2 10 tongue and groove osb subfloor application as 4 x 8.

X 47 75 in install over insulation or unreliable attic flooring boards lock together using a tongue and groove design. Installing attic flooring for light storage only. You can install inch plywood or oriented strand board osb in 4 foot by 8 foot panels over existing 16 inch oc joists. For joists spaced.

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. 7 16 and 6 00 sounds more like osb than plywood. It is cheap and strong enough for the job.