Hello- Have L shape in mind for garage. Twice around out and back as it were with one reversing loop. 10' x 8' to work with. Borrowed this idea from I forget where. (WPG trackplan ... if ya wanna search ) Grid is 6". Passenger train of 5 cars on upper and freight of 6 hoppers ( 40' ) on lower for reference. Thinking of residential and industrial on upper. Spur tracks as yet to be decided. May include a "fun" feature such as a timesaver or similar. Perhaps an extended timesaver with wharehouses etc. Anyone have examples of this kind of thing? Water feature and agricultural on lower. Grain or dairy....? Might go with mining, we'll see. Anyway....Thanks for looking and comments.