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The 20 Ft Tunnel Container The 20-foot tunnel container is an entry-way with double-ends that offers improved access to the stored items. It also features an open design that permits it to be used for a variety of uses, including conversion into an on-site office or living space. These containers are built from corrosion-resistant Corten steel and are in compliance with ISO standards. They are water- and wind-tight and can be easily moved by truck, rail, or ship. High-Quality Ma