Load Planning

Load planning is the process of determining how freight should be arranged within a trailer to maximize space utilization, maintain proper weight distribution, ensure adequate airflow for temperature-controlled cargo, and facilitate efficient unloading at delivery stops. In cold chain logistics, load planning is more complex than ambient freight operations because the reefer unit's airflow patterns must be considered alongside traditional space and weight constraints.

Proper reefer load planning requires maintaining an air channel between the top of the cargo and the ceiling of the trailer to allow the refrigeration unit's supply air to flow over and around the freight. Products should not be stacked above the red load line marked inside the trailer, and they should not block the air chute that directs cooled air from the reefer unit to the rear of the trailer. Blocking these airflow paths creates hot spots where product cannot be properly cooled.

Multi-Stop Load Sequencing

For multi-stop deliveries, load planning must also consider the delivery sequence. Freight for the last delivery stop should be loaded first, positioned at the nose of the trailer, while freight for the first stop should be loaded last, near the tail doors. This last-in-first-out arrangement minimizes the time the trailer doors are open and the amount of freight that must be moved to access each stop's orders.

Advanced load planning software helps shippers and carriers optimize trailer utilization by considering pallet dimensions, weight, stacking limitations, temperature zones, delivery sequence, and airflow requirements simultaneously. These tools can increase effective trailer utilization by 5 to 15 percent compared to manual planning, translating directly to lower per-unit transportation costs and fewer trucks needed to move the same volume of freight.