Is UPS going to offer flat rate boxes?
USPS, FedEx and UPS all use dimensional shipping so it is hard for eCommerce site owners to control shipping costs for every order.
USPS offer flat rate boxes which are a big help in knowing your costs up front.
But now, rumor has it that UPS is testing a flat-rate service. Packages weighing up to 70lbs and measuring under 900 cubic inches can be shipped for $11.35 for 3-day delivery with no surcharges. There is also a Ground service rate under $10. Will they provide boxes as well? Maybe.