I go back and forth between having separate barn/warehouse buildings from living quarters in the "barndominium" I am designing. Here is the latest idea. The barn/warehouse area is 42X76 and the living quarters is approx. 1375 sq. ft. (not including porch). All three bedrooms are sized to accomodate king size beds although I do not anticipate actually having them. The 42 x 76 area would be a steel building with 12' eave height and 2/12 pitch roof. The living quarters would have a 9' ceiling and would be covered by an extension of the 2/12 roof over the barn/warehouse area.