Handling, handling and assembly of indivisible heavy items and heavy items of weights generally considered to be over 100 tonnes and widths/heights of more than 100 meters. These oversized items are transported from one place to another (sometimes across country borders), then removed or installed in their place. The peculiarity of heavy loads is the absence of standardization, which requires an individual transport planning.

Typical heavy payload includes generators, turbines, reactors, boilers, towers, casting, heaters, presses, locomotives, boats, satellites, military personnel and equipment. In the offshore industry, parts of oil platforms and production platforms are also removed; some of these are also removed at the end of an installation's working life. Notable recent increases in the decommissioning of the North West Hutton oil field in the British sector of the North Sea have included some over 2000 metric tons.

Special trucks or trailers (flatbeds) are used for transporting heavy loads, which are particularly suitable due to their large loading area and capacity. As for airlift, there are special large-volume cargo aircraft Antonov An-225 operating that can move up to 250 tons of payload. Barges are generally used in inland waters. Sealift is carried out by special heavy cargo vessels, which usually have their own cranes for loading and unloading cargo. Heavy cargo transportation is among the most demanding and complex services in logistics and is performed by specialized companies.