Most of the steel studs have been screwed into place, and some of the insulation is up. The next step is to cover the studs and insulation with gypsum wallboard.
At the same time, the air ducts for heating and cooling the space are nearly complete, the plumbing is done, and the electrical work is mostly done.
After the air ducts are finished, a drop ceiling covered in acoustically insulating foam will be installed, so the noise of the workshop won’t annoy the people upstairs.