I know the thread is about a year old now since the last post. I just joined the forum today when I found this post searching for end walls on a metal building. Ironically, I have an A20-18 Futuresteel building that we just finished building the arches last week. I am in the process of deciding how to construct my end walls and this thread was a perfect discussion on just what I need to complete. My building looks pretty much like txvwnut's building as an A style building. Mine is 20'W x 44'L x 18'H. I also ordered the industrial base plate connectors and did not order end walls. My building came with the "trim angle" pieces that some of you have been referred to as the "end finish pieces". In talking to the tech support at the factory, they tell me those are just trim angles, and you may or may not have the inner trim angle with your kit...I do not, I have just the outer trim angle. These are just trim pieces and not intended to be tied to the end walls, rather, just to trim over the end wall to prevent weather from running inside the wall. I was told that you use angle, tied back to the flat portion of the building between the ribs of the end arch. You install this angle perpendicular to the arch and in multiple locations, using the same bolts with washers, that came with the building. You have to drill holes for them, and add enough angle to brace the wall securely, but the wall only supports itself and is not load bearing for the building.
My question...since my building is only 20'2" wide, and since my slab is set with a drop of 12'3" for the overhead arage door of 14'T x 12'W, it leaves me with less room between the garage door and the side of the building, than a standard 3070 man door (walk thru door) will give me. I need that walk door. I am searching for a 2770 or thereabouts to give me walk thru access. Any additional discussion on framing the end wall for both the garage door as well as the walk door would be very much appreciated.