This gives a volume range of 680 to 1,520 cubic feet (19 to 43 m 3) for one TEU. However, both 9-foot-6-inch-tall (2.90 m) High cube and 4-foot-3-inch (1.30 m) half height containers are also reckoned as 1 TEU. The most common twenty-foot container occupies a space 20 feet (6.1 m) long, 8 feet (2.44 m) wide, and 8 feet 6 inches (2.59 m) high, with an allowance externally for the corner castings the internal volume is 1,172 cubic feet (33.2 m 3). The related unit forty-foot equivalent unit, however, is defined as two TEU. ft, with one register ton equivalent to 100 cubic feet (2.83 m 3).Īs the TEU is an inexact unit, it cannot be converted precisely into other units. Deadweight tonnage is generally measured now in metric tons ( tonnes). The carrying capacity of a ship is usually measured by mass (the deadweight tonnage) or by volume (the net register tonnage). The MV Emma Mærsk officially carries 11,000 TEU (14 tons gross each) Equivalence TEU capacities for common container sizes Although longer than 40 feet, these variants are put in the same class of forty-foot equivalent units. Containers with a length of 48 feet (14.63 m) or 53 feet (16.15 m) are restricted to road and rail transport in North America. As some road regulations allow longer trucks, there are also variations of the standard forty-foot container - in Europe and most other places a container of 45 feet (13.72 m) may be pulled as a trailer. The length of such a combination is within the limits of national road regulations in many countries, requiring no special permission. The forty-foot containers have found wider acceptance, as they can be pulled by semi-trailer truck. The twistlocks on a ship are put at a distance so that two standard twenty-foot containers have a gap of three inches which allows a single forty-foot container to be put on top. In order to allow stacking of these types a forty-foot intermodal container has an exact length of 40 feet (12.192 m), while the standard twenty-foot intermodal container is slightly shorter having an exact length of 19 feet 10.5 inches (6.058 m). Additionally there is a standard container with the same width but a doubled length of forty feet called a 40-foot (12.2 m) container, which equals one forty-foot equivalent unit (often FEU or feu) in cargo transportation (considered to be two TEU, see below). The standard intermodal container is designated as twenty feet long (6.1 m) and 8 feet (2.44 m) wide. Stacked top to bottom: 53 ft, 48 ft, 45 ft, 40 ft, and two end-to-end, 20 ft containers

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