They don t include the decking because it is shipped from the uk and that would be ridiculous.
Attic decking plywood.
As an alternative 3 4 osb can be used.
You need 3 4 inch plywood.
Lay sheets of the plywood onto the floor spanning the joists with a 1 2 inch space between the walls of the attic and the edges of the plywood.
These lightweight easy to manage panels can be installed by even the most inexperienced homeowner in about 15 minutes.
Joist spacing and attic use the joist spacing in some attics is 24 inches and 1 2 inch sheets will sag and possibly break when spanning that distance.
Installing attic flooring for light storage only 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.
However the same can t be said if you are planning on using the space as a living space.
A single 4 pack covers approximately 10 sq.
Don t use 7 16 osb as it is intended for external sheathing and isn t strong enough to be used as a floor.
In that case you will need to use 3 4 thick plywood.
Attic flooring panels are easy to install with their interlocking edges.
An attic can be floored with 1 2 cdx plywood if it is being used only for storage.