The ship that transports goods is called cargo ship, which mainly refers to modern ships driven by mechanical wheels. It enables people to trade between different regions of the world. Today, a large number of different types of freighters built by various countries sail on the sea, ranging from large oil tankers to small tugboats, from ferry carriers to ships specially designed to search for damaged ships.

Cargo ships rarely have superstructure (above the main deck). There is a pilot bridge with a chimney on board. There are engines and living quarters under the bridge. The rest of the ship can hold as much cargo as possible.