Fabric buildings for port warehouse and cargo storage applications are engineered to withstand harsh coastal conditions while providing maximum clear-span coverage for containerized freight, bulk materials, and intermodal operations. The structural system employs corrosion-resistant steel frames constructed from hot-dipped galvanized members with additional protective coatings to combat saltwater exposure and marine atmospheric conditions. Primary frames utilize welded or bolted rigid frame assemblies capable of spanning 60-300 feet without interior columns, accommodating container stacking equipment, reach stackers, and overhead crane systems.