minimum polebarn size

im getting honed in to a 30x40 barn, seems like that is the biggest i can fit there, without clearing too much forest

come to think of it, my welder and compressor are also 110, but id like to be prepared



good thing you brought up the lift, ive been looking at different heights vs. cost and i think i want to build it as low as a lift allows (building it high enough to fit a second floor is going to be out of my budget)

so what is the minimum height needed for a lift ?