I had a 40x60 red iron built a little over a year ago for 96k.
40x60x16 red iron, insulated, 3 large roll up doors, 5" 4k concrete with fiberglass, no electrical (did myself).
40x60x16 red iron, insulated, 3 large roll up doors, 5" 4k concrete with fiberglass, no electrical (did myself).