The International Shipping Industry shares a major chunk, about 90%, of the global trade in goods. According to the International Chamber of Shipping, there are more than 50,000 merchant ships operating in the oceans currently. Container ships (also spelt as containerships) are cargo ships that carry the load in large-sized intermodal containers. They are classified into various categories, based on their carrying capacity. Presently, there are seven major types of container ships in service. In ascending order, they are – Small Feeder, Feeder, Feedermax, Panamax, Post Panamax, New Panamax (or Neo Panamax) and Ultra Large Container Vessel (ULCV). Check out the world's biggest container ships according to their carrying capacity.