Plywood with similar propertiescurrently costs about 30 more for an equivalent thickness.
Osb or plywood for shed roof.
Today you can find osb in thickness from 7 16 to 1 1 8 for different applications from roof wall subfloor i joists and everything between.
Alternatively osb is created from wood chips resin and adhesive that is baked and formed into the shape of a sheet of plywood.
Oriented strand board osb is the least expensive option for sheathing the walls and roof of a shed which is why it s used so often for sheds and homes.
Using oriented strand board is a tested way of reducing costs for building your shed.
Both products will swell when wet but plywood will return to almost its exact shape when it dries.
Plywood will absorb moisture quicker than osb but consequently it will also dry quicker.
Osb is made of chips of softwood glued together in a semi random pattern.
However when it is penetrated by water it takes a very long time to finally dry out compared to cdx plywood.
However there are some sceptics out there who doubt the strength and durability of osb.
As with plywood osb typically comes in 4 ft.
It is extremely resistant to moisture.
Using oriented strand board osb for shed walls floors and roofs.
Even though plywood is more expensive and osb stronger my recommendation for a shed roof is 5 8 or 3 4 construction grade exterior rated cdx t g plywood.
University of massachusetts meets most building codes for roof and wall sheathing.
The lower the slope the more weight for snow load but less wind force.