I apologize if this question has been asked a thousand times already. I did search the group archives, but I didn't a post that seemed to address my question directly.
I am wiring a basement. There are several parts to the basement: a relatively "finished" room, a laundry area, and a workshop.
My question involves the workshop. I want to put wiring in walls that have sheetrock on only one side. The un-sheetrocked side will be the workshop side. Can I just use romex? I realize that I need to staple romex onto the wide faces of joists and studs. But, what about when the cable travels from one stud to another, traveling across air? Is that okay, or does wiring in that situation need to be protected? If so, would BX (armored) cable in that situation be up to code?
Thank you in advance for your help.
Tim F Minneapolis, MN