+1
Poured floor with vapor barrier, insulate the walls, maybe punch in a couple of window for some more light, drywall the walls after the insulation is fine. If you are going to be running some dumbells, a piece of large base trim out of flat stock is probably fine to keep them drywall from getting banged up.
Poured floor with vapor barrier, insulate the walls, maybe punch in a couple of window for some more light, drywall the walls after the insulation is fine. If you are going to be running some dumbells, a piece of large base trim out of flat stock is probably fine to keep them drywall from getting banged up.