Profile: Portable Storage Containers offers movable storage containers. Our portable storage box is used in staging area, inventory management, supply chain management, and in on-site storage solutions. Our portable storage containers require no foundations or structural assembly. They are secure, wind and water-tight, and rodent-proof storage containers. Portable storage boxes are heavy-duty because they are built with asymmetrical steel doors with ground-level entry and heavy-duty wood flooring. Our custom portable buildings are secure workplaces built inside a 16 gauge vertically corrugated galvanized steel shipping container. It includes a die-stamped steel roof, electrical system and lighting.