Hercules Truss Arch Buildings are designed to customer specifications and manufactured to order. Building frames are constructed from our USA-made, triple-galvanized structural steel tubing and are manufactured to stand up to a minimum of 90 mph winds. Engineered to withstand both balanced and unbalanced snow loads of a minimum of 40 lbs. per sq. ft., these structures are available from 20' wide to 300' wide and in any length desired. 12.5 oz. premium covers come with a 15-year warranty. Many options are available, including entry doors, steel roll-up doors and roll-up sides.