The workshop building has quite a bit of space so I decided to make a finishing room and a small storage room at one end.  The storage room will use an existing door and the finishing room will use a roll-up garage door.

In order to make the finishing and storage rooms, I need to make two non-load-bearing walls. I started out by adding some blocking between the joists where the long wall will go, then I built a stick-frame wall with 2x4s.

Next I temporarily took down a fluorescent light fixture and built the small wall perpendicular to the long one. The long wall and storage walls are now up.  That 22' wall was a heavy bugger but I managed to get it upright.