Checkout this 40′ W x 40′ L x 16′ H commercial structure with (2) 12′ W x 12′ H roll-up doors, (1) 6′ W x 7′ H roll-up door, and (1) 36″x80″ walk in door. You would be required to have a lull lift on site so the installers can erect the metal frame.