In 2001 oriented strand board surpassed plywood in terms of square footage produced.
Osb or plywood for attic floor.
However plywood subfloors are stiffer than osb by about 10.
X 47 75 in install over insulation or unreliable attic flooring boards lock together using a tongue and groove design.
Platforms don t have to be plywood.
I ve used 7 16 osb for decking in an attic.
It is too thin for a floor in a room but for a lightly used attic it is plenty.
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 cheaper than plywood by about 3 to 5 per panel.
It is cheap and strong enough for the job.
Plywood comes in large sheets.
What size plywood for an attic floor.
Osb oriented strand board.
Attic pine oriented strand board common.
Here are a few tips to help you and your house get through the attic flooring installation job unscathed.
Cut the plywood into manageable strips about 10 inches wide to make the job easier.
Install two by four blocking between joists or wherever needed to support edges of the plywood that do not have support from the bottom.
The sheets are generally 4 x 8 or 4 x 12 feet in size.
A plywood subfloor generally uses 1 2 inch to 3 4 inch thick sheets of plywood that have one rough side which faces down and one smooth side which faces up.
As a result osb floors are more likely to squeak due to floor movement cause hard floor surfaces to crack such as tile result in soft spongy floors cost of plywood vs osb.
For joists spaced.
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.
Installing attic flooring for light storage only.
Osb is now used for about 70 percent of all floor wall and roof sheathing in north america.
Building codes the engineered wood association architects and most builders rate plywood and oriented strand board obs sheathing equal in strength and durability.
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.
It might seem impossible to haul it up to the attic.