Meaning
Shipping price calculations depend on a constant that relates volume to mass for the purpose of setting transport prices. A dimensional weight divisor acts as the denominator in the formula used to determine the billable weight of a parcel from its dimensions. This system ensures that bulky items pay for the storage space they occupy in a cargo hold or delivery truck.
Volumetric Ratio
Carriers choose a specific number that accounts for the density of their average payload and the capacity of their fleet. The dimensional weight divisor usually differs between express air services and ground trucking operations due to varying fuel costs. Setting a higher number results in a lower billable weight for the customer while a lower number increases the shipping price.
Contractual Obligation
Master service agreements specify which constant will apply to all shipments during the term of the agreement. Any change to the dimensional weight divisor must be negotiated during the renewal phase to avoid sudden spikes in fulfillment expenses. Distribution centers use this figure to select packaging that minimizes empty space and reduces total costs.
Freight Efficiency
Formulaic rules require the rounding of each dimension to the nearest whole inch or centimeter before applying the math. Small differences in the dimensional weight divisor notably alter the annual shipping budget of a large retailer.