


Often, USPS Priority Mail Cubic is your best, most affordable service level when shipping small packages that weigh at least a pound and no more than 20 pounds. Packages shipped through Priority Mail Cubic can weigh up to 20 pounds.

Through this option, you can ship a package up to a half cubic foot in volume, which roughly equates to just smaller than 12 x 12 x 6 inches (or another combination that totals the same volume, with a maximum size of 18 inches for any dimension). The price is based on the size (length x width x height) of each package. The USPS Priority Mail Cubic service level offers rates up to 90 percent off Retail. Learn more about the “sweet spots” of each to ensure you’re making the right choice. Which Is the Best Option for My Business?Įach of the USPS Priority Mail service levels exist to support different shipping needs.
