I recently bought a house and it has an unfinished suspended garage (big concrete room with 12’ ceilings in the basement under the garage).
The walls, floor, and ceiling are all concrete and there are steel I beams in place for extra support.
I’d like to finish it and turn it into a theater room, but it isn’t framed. Given that the framing would not need to be load bearing, can I get away with something cheaper than 2x4’s? Or am I going to regret cutting this corner.