ULDs contain airfreight cargo.
What is a ULD?
A ULD (unit load device) is a device used to move cargo being shipped as airfreight. More specifically, a ULD is used to consolidate cargo in order to assist with the loading process onto an airplane.
ULDs come in two forms: pallets and containers.
![markdown image](https://images.ctfassets.net/92fo1e671z6m/3w67EWCLu0pgtDGB7QbfMV/699149a8ec4747bd80d4cc964af9e190/unit-load-device-0.jpg)
Pallets
![markdown image](https://images.ctfassets.net/92fo1e671z6m/283yJc88M6XBC79bhYXzTB/fcff09cd09de53cd7d61005f897821f8/unit-load-device-1.jpg)
Container
How will air cargo be consolidated?
Air cargo can be tendered loose to an airline, and the airline will load the air shipment into a ULD with other shipments.
Shippers can also book a ULD container and load the ULD themselves. Then a trucker at destination can pick up the entire ULD and deliver it to a warehouse to be deconsolidated.