<P> The forty - foot containers have found wider acceptance, as they can be pulled by semi-trailer truck . The length of such a combination is within the limits of national road regulations in many countries, requiring no special permission . 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 . Containers with a length of 48 feet (14.63 m) or 53 feet (16.15 m) are restricted to road transport in the United States . Although longer than 40 feet, these variants are put in the same class of forty - foot equivalent units . </P> <P> Container ships only take 40 - foot and 20 - foot containers below deck, plus 45 - foot containers above deck . Ninety percent of the containers that container ships carry are 40 - foot units . As container ships carry 90% of the world's freight, at least 81% of the world's overseas freight moves via 40 - foot containers . </P> <Table> TEU capacities for common container sizes <Tr> <Th> Length </Th> <Th> Width </Th> <Th> Height </Th> <Th> Volume </Th> <Th> TEU </Th> </Tr> <Tr> <Td> 20 ft (6.1 m) </Td> <Td> 8 ft (2.44 m) </Td> <Td> 8 ft 6 in (2.59 m) </Td> <Td> 1,172 cu ft (33.2 m) </Td> <Td> 1 () </Td> </Tr> <Tr> <Td> 40 ft (12.2 m) </Td> <Td> 8 ft (2.44 m) </Td> <Td> 8 ft 6 in (2.59 m) </Td> <Td> 2,377 cu ft (67 m) </Td> <Td> 2 () </Td> </Tr> <Tr> <Td> 45 ft (13.7 m) </Td> <Td> 8 ft (2.44 m) </Td> <Td> 8 ft 6 in (2.59 m) </Td> <Td> 3,060 cu ft (86.6 m) </Td> <Td> 2 or 2.25 </Td> </Tr> <Tr> <Td> 48 ft (14.6 m) </Td> <Td> 8 ft (2.44 m) </Td> <Td> 8 ft 6 in (2.59 m) </Td> <Td> 3,264 cu ft (92.4 m) </Td> <Td> 2.4 </Td> </Tr> <Tr> <Td> 53 ft (16.2 m) </Td> <Td> 8 ft (2.44 m) </Td> <Td> 8 ft 6 in (2.59 m) </Td> <Td> 3,604 cu ft (102.1 m) </Td> <Td> 2.65 </Td> </Tr> <Tr> <Td_colspan="5"> High cube </Td> </Tr> <Tr> <Td> 20 ft (6.1 m) </Td> <Td> 8 ft (2.44 m) </Td> <Td> 9 ft 6 in (2.90 m) </Td> <Td> 1,520 cu ft (43 m) </Td> <Td> </Td> </Tr> <Tr> <Td_colspan="5"> Half height </Td> </Tr> <Tr> <Td> 20 ft (6.1 m) </Td> <Td> 8 ft (2.44 m) </Td> <Td> 4 ft 3 in (1.30 m) </Td> <Td> 680 cu ft (19.3 m) </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Length </Th> <Th> Width </Th> <Th> Height </Th> <Th> Volume </Th> <Th> TEU </Th> </Tr>

How many cubic meter is a 20 foot container
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