We have 2 storage barns, one is just for storage and it is 70 X 120 with concrete floor and the other is the same with concrete floor except it's heated in the front half and that's where the shop/office/bar is. We are not dealers, however, I know dealers let their stuff sit outside. The main office/shop barn's back half is for prime movers and the other barn is for implements. We have a 5,000 gallon above ground diesel storage tank (if you look at the John Deere Supersteer photo's in the photo section on this site you will see part of the tank), and 10,000 gallons of storage for 28% liquid fertilizer. We even wax the equipment once in a while.