what is ground advantage cubic usps

what is ground advantage cubic usps What is Ground Advantage Cubic USPS refers to a special USPS pricing tier under the Ground Advantage service where small, heavy packages are priced based on size rather than weight. This method is cost-effective for e-commerce shippers using compact boxes under 20 pounds. The cubic pricing tiers are based on volume in cubic feet, making it ideal for dense items that are heavy but take up little space. Ground Advantage Cubic is available through online postage services or USPS commercial rates.