So my metal shop is basically a glorified carport. The framing is done with 2 1/2" square tubing. So I already have 1"x2" boards behind 1" foam board insulation to give the insulation a gap between it and the outside metal. Of course the boards are really 3/4" in true measurement. I plan on using 19/32" OSB for the walls. My problem is going to be figuring out how to secure the osb in the corners. I plan on securing the osb to the frames, with each section joining at the middle of the 2 1/2" tube. There is only one tube in the corners. If I run my osb over the tube in the corner, I run into how I'm going to secure the osb for the other wall adjoining the corner. The one idea I had was just putting about 3 angle brackets onto the secured osb and secure the other osb panel with the brackets. I'm really open to better ideas if anyone has any. I've attached a pic of what the corners look like. I don't see the option of trying to frame in all the sections and having to extend all of my electrical outlets out. Help! Lol