USPS Priority Mail Cubic is a cost-effective shipping option for small, dense packages. This service allows you to ship packages up to half a cubic foot in volume (equivalent to 12x12x6 inches or other combinations with the same volume) and weighing up to 20 pounds. To qualify for Cubic rates, the maximum size for any dimension is 18 inches.
Priority Mail Cubic pricing is based on the package's outer dimensions rather than its weight, making it an excellent choice for businesses looking to optimize their shipping costs. By strategically planning your packaging to fit within the smallest pricing tier possible for your package's contents, you can significantly reduce shipping expenses.
Priority Mail Cubic has five pricing tiers based on the package's cubic volume. To determine which tier your package falls into, follow these steps:
For example, to calculate the Cubic tier for a box measuring 12.3" x 9.5" x 3":
Priority Mail Cubic can be used with envelopes or poly mailers, but using padded envelopes or poly softpacks will impact the formula for determining your pricing tier. It's important to note that Cubic-priced mailpieces cannot be rolls or tubes.
To make the most of Priority Mail Cubic pricing, carefully plan your packaging to fit within the smallest tier possible for your package's contents. This approach can lead to significant cost savings. Consider the following tips:
Priority Mail Cubic rates vary based on the package's cubic volume and the shipping distance. The five pricing tiers are:
Rates for each tier are determined by the shipping distance, with prices increasing for longer distances. To find the most current rates for your specific shipping needs, consult the official USPS rate charts or use a reliable shipping software solution.