USPS Ground Advantage Cubic is a cost-effective, dimension-based shipping option for packages up to 20 pounds, with a maximum dimension of 18 inches and a total volume not exceeding 1 cubic foot. This service delivers parcels within 2 to 5 business days across the continental United States, including Alaska, Hawaii, Puerto Rico, and military addresses.
Unlike traditional weight-based pricing, Ground Advantage Cubic rates depend on the package’s dimensions, offering competitive pricing for compact shipments. Rates start as low as $5.40 for packages up to 1 pound, making it an excellent choice for cost-conscious businesses. (Prices are subject to changes from USPS).