I've started work on a new 3 car carriage house, 34 wide by 29 deep. Milwaukee has a 1000sq ft limit on garages. The old garage from the 30's was 18x18, basically a one car and leaned to the left 10 inches. The walls will be 2x6, 9 or 10ft ceiling in lower level, 8 or 9 in second story. 3...