Carports and other Large Buildings Why buy a Pole Barn when you can have the strength and stability of steel. The new "ExSel" structure is designed to have a vertical roof and vertical sidewalls. Overhangs are available on the sides. This structure is economical and durable. All our buildings are made with the highest grade of zinc coated steel on the market and the highest quality tubular frame buildings sold in America today! Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge If you don't see any navigation at the top of this page click here.