If your intent is to use the attic for a purpose other than storage you will need to consider a more finished look.
Best attic floor board.
Be cautioned though that even with insulation hardwood flooring will cause a lot of foot traffic noise to the floor below.
But best to.
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.
First you ll need to measure the area you want to floor so you can calculate how much wood you ll require.
What size plywood for an attic floor.
To floor an attic you ll need to install a sub floor for support before laying your plywood floor.
Use old boards that are close to the same thickness in a given section of the attic however.
You don t want lots of different floor heights or walking in the attic will be difficult.
If you ever need to cover them with finished flooring you can always nail down another subflooring before installing tile or hardwood.
Use 1 foot wide boards in pine or spruce to make quick work of putting down a floor.
Installing attic flooring for light storage only.