Dong Fang International Containers
Dong Fang International Containers

What Are the Standard Sizes and Specifications of Ocean Freight Containers?

What is ocean freight container?


Ocean freight container refers to the containers carried by container ships, which are generally referred to as freight forwarders. Sea freight container combined with trailers can provide door-to-door transport services, and the scope of sea shipping container is mostly within the business of freight forwarders.


Standard sizes and specifications of sea shipping container


The international standard container specifications include various lengths such as 20 feet, 40 feet, with a width of 8 feet, a height of 8.6 feet.


Container transportation has many advantages, such as being conducive to mechanization of port operations, improving loading and unloading efficiency, greatly shortening the time spent by ships in ports, accelerating the turnover rate of ships, saving packaging costs, reducing cargo damage, and being conducive to the connection between different transportation routes and carriers, carrying out door-to-door transportation, etc. Container transportation began to rise in the 1930s and developed after the war. The emergence of ocean container transportation has made container transportation flourish.


There are more than 400 container ports and over 10,000 berths in the world's container transportation network. According to relevant information, at the end of 1995, the world's container fleets (with a total tonnage of more than 3,000, with a carrying capacity of 150TEU or more) totaled 2,092 ships with a carrying capacity of 29.7 million TEUs (standard containers). In the same year, the total number of containers imported and exported in global ports and transit ports reached 142 million TEUs, and all major shipping routes have been containerized.


Specification table of ocean freight container


The standard sizes of general containers include: 20 feet and 40 feet, the volume of a 20-foot container is 33 cubic meters, with a weight limit of 21 tons; the volume of a 40-foot container is 67 cubic meters, with a weight limit of 26 tons.


  • 20-foot container: volume is 5.69M* 2.13M* 2.18M, the maximum weight of the cargo is generally 17.5 tons, and the volume is 24-26 cubic meters.

  • 40-foot container: volume is 11.8M* 2.13M* 2.18M, the maximum weight of the cargo is generally 22 tons, and the volume is 54 cubic meters.

  • 40-foot high cube container: volume is 11.8M* 2.13M* 2.72M, the maximum weight of the cargo is generally 22 tons, and the volume is 68 cubic meters.

  • 45-foot high cube container: volume is 13.58M*2.34M*2.71M, the maximum weight of the cargo is generally 29 tons, and the volume is 86 cubic meters.

  • 20-foot open top container: volume is 5.89M*2.32M*2.31M, the maximum weight of the cargo is generally 20 tons, and the volume is 31.5 cubic meters.

  • 40-foot open top container: volume is 12.01M*2.33M*2.15M, the maximum weight of the cargo is generally 30.4 tons, and the volume is 65 cubic meters.

  • 20-foot flat rack container: volume is 5.85M* 2.23M* 2.15M, the maximum weight of the cargo is generally 23 tons, and the volume is 28 cubic meters.

  • 40-foot flat rack container: volume is 12.05M* 2.12M* 1.96M, the maximum weight of the cargo is generally 36 tons, and the volume is 50 cubic meters.


To prepare for sea freight container, the necessary information on the transportation of goods such as the name, nature, weight, quantity, and delivery location of the goods. If transportation requires approval, inspection, or other procedures, the shipper should submit the relevant documents to the carrier after the related procedures have been completed.