I wanna cook up some bars for three windows on my garage, along with a couple of side windows in an alley between houses. Those are going on the inside, behind some drapes, and will be easily defeated in event of a desire to exit rapidly. They do NOT need to be pretty.
So, what do y'all know about how to tell if rebar is weldable? I have some 3/4" 1018 square tubing that I plan to use for the crossbeam/frames...