In process of replacing the wood structure with steel, main sills and lower frame complete, starting to fabricate the door jambs/posts. While taking some measurements I noticed the front wood door frame has a 7-8 degree angle outward to the body (.25" per 2", see photo, both sides same). This would mean the hinge pivot point is .5" forward from the inside of door frame. Why? The only reason I can think of, is for the rear of the door to clear the door frame when opening ? I don't want to fab and weld in the steel replacement flat, then cut it back out if it needs to be at an angle. Thanks in advance !