I have removed the knotty pine interior wall covering in my den to add insulation. That included removing the trim around the door between my den and garage. The door is a steel door with a steel door frame that was installed last year by a contractor. Since I removed my knotty pine interior wall covering and the door trim, there is now a sizable gap between the surface of the closed door (and its steel door frame) on the den side and the wood framing behind it (about 2.5 inches). The gap is so much that I realized the bolt for the door never went into the wood door frame when it was locked - it only slid into a hole in the knotty pine wall covering. The door and frame are sticking out into the room too much so that even when I add 5/8" drywall, there will be a gap between the steel door frame and the wood frame doorway of almost 2 inches. The contractor previously addressed the (smaller) gap problem by using extra (deep) door trim to compensate. I'm not sure how to make this "right", but I suspect it will involve adjusting the door frame so that it doesn't stick out so much into the room, so the difference in distance between the steel and wood door frames is only about an inch, or maybe less. That may also allow the bolt to slide into a hole in the wood door frame. Any thoughts?