Businesses that are selling products often apply the shipping calculation method that provides the higher weight, otherwise known as the Weight (or Management) rule, or W/M rule. Once you have this basic information, we need to consider specific shipping formulas.
In the next chapter we will discuss:
Volumetric Weight and Cubic Meter (CBM) Formulas
The most efficient and effective formula for your business relies on the preceding factors. Two common measures for determining shipping rates are the Volumetric Weight formula and the Cubic Meter (CBM) formula. It is important for you to accurately determine which formula your specific products and shipments require.
During the shipping determination process, shipment carriers select the formula that provides the highest revenue. If you consider filling the cargo area of an airplane with large orders of low-density items, the carrier will not earn as much if they charge by straight volume. To combat this, they determine shipping in relation to volumetric weight, which is a more arbitrary calculation.
In fact, it is common for shippers to calculate shipping by two different formulas, and then charge the higher rate of the two.
Shippers might apply the formula for Volumetric Weight, otherwise known as dimensional weight (dim), when the products you are receiving cost more for their physical space than their weight during shipping. For example, if you are calculating the shipping cost of crates of fragile, decorative feathers, you would want to apply the Volumetric Weight formula, because it accounts for the fact that the crates take up more space on the cargo plane when compared to their overall weight.
The Cubic Meter formula (CBM) is also a common method of calculating shipments by marine freight. This process involves measuring the volume of the shipment. To operate this formula, you will need to know the length, width, height, and weight of your packages, and the potential sizes of shipping containers.
If you are still unsure of which calculation method might be best for you, the only way to know for sure is to run calculations for both. Once you do this, you can compare the gross weight of your products to the volumetric weight.
If you haven't already, gather some invoices from Suppliers, Shipping or any other invoices and we will dive into the next chapter.