Popular size
A 40×60 metal building is 2,400 square feet of clear-span American steel — the default U.S. shop, small warehouse, and serious hobby barn. Carport.com builds that footprint as a garage, workshop, or commercial shell: 14-gauge frames (12-gauge upgrade), 29-gauge sheeting, Regular / A-frame / Vertical roofs, roll-ups on any wall. Instant local price in the designer. Free delivery and installation on a level site. Certified packages when the county treats 40×60 as occupancy.