Dimensional weight, also called DIM weight, is a pricing technique used for commercial freight transfer, including courier and postal services.
Since space on a delivery truck is limited, dimensional weight takes into account package density to determine shipping rates. Freight carriers calculate shipping charges based on whichever number is greater: the actual weight of the package or its calculated dimensional weight.
Within ShipBob pricing, when the dimensional weight is greater than the actual weight, the dimensional weight is used instead of the package's actual weight.
Dimensional weight for domestic packages is calculated as follows: (L x W x H)/166.
Dimensional weight for international packages is calculated as follows: (L x W x H)/139.
If you have any questions about what your divisor is, please consult your Account Manager or our Customer Success team.