Establishing the Actual Cargo Weight: This method involves weighing the cargo to be loaded onto the ULD, using a scale or other measuring device. The weight of the cargo is then recorded, and is used to calculate the gross weight of the ULD.

Establishing the ULD Gross Weight: In some cases, the gross weight of the ULD may be determined by calculating the weight of the ULD itself, plus the weight of the cargo to be loaded onto it. This method can be used when the actual weight of the cargo is not known, or when the weight listed on the airway bill is not accurate.

In both cases, it is important to ensure that the gross weight of the ULD does not exceed the maximum weight allowed for that particular ULD,
as well as the maximum weight allowed for the specific compartment or hold on the aircraft where the ULD will be loaded.
Exceeding these maximum weights can affect the aircraft's performance and safety, and may result in fines or other penalties.

Establishing the Actual Cargo Weight/Establishing the ULD Gross Weight

Loading Norms /Criteria

• ULDs are loaded on the ball mat, not on the floor
• All shipments loaded on or in a ULD must be destined for the same offloading station
• Where possible all pieces belonging to one shipment (AWB) should be loaded on or into the same ULD
• Large or heavy pieces on pallets (small pieces are best loaded in containers)
• Heavy or sturdy pieces are loaded as a first or bottom layer
• Light pieces are then loaded on top to reduce the chance of damage
• The ‘bricklayer’ method of loading helps to stabilize the cargo
• The tie down rail on the pallet rim needs to be kept free of loads at all times to enable the attachment of tie down equipment
• Wooden pallets, supporting platforms or planks are used when loading pieces with
  a metal base. This helps to prevent the piece/s slipping whilst in transit. Additional lashing may be required by certain airlines.