Universal Storage Containers® is the industry leader as a manufacturer and supplier of portable storage containers. For more than 18 years and with 200,000+ containers in use worldwide, Universal Storage Containers® has been awarded the Inside Self Storage® “Best in Business/Best Portable Storage Container" for 14 years in a row. The USC Z-Box®, for moving/mobile use as well as self-storage, offers the best value, quality and service in the industry. USC portable storage containers are delivered in quantities of 12 and can be assembled in as little as 20 minutes.