After the joists are in place the subfloor sheathing can go down. We used 3/4 in. T&G OSB because it is strong and inexpensive. Plywood would make for a somewhat smoother floor. Also, you could use T&G decking boards for a handsome wood floor you could sand and oil.

We painted the OSB after everything was done on the interior.

This platform becomes the staging area for the wall frames that will be built next.

Next Step      # step04