There are eight different flat rate envelope and box options. What Are the Different Envelope and Box Options? It would be great if flat rates were available for all our favorite USPS shipping services but for now, it is available only for Priority Mail and Priority Mail Express. Where Can I Get Flat Rate Boxes?įlat rate boxes can be picked up at your local Post Office ™ or ordered online-both for $0! If you have the boxes readily available your employees and colleagues are more likely to use them. Convenience is key! Priority Mail is a 1, 2, or 3-day service and Priority Mail Express is a guaranteed overnight delivery service. Flat rate boxes are available for two USPS services: Priority Mail and Priority Mail Express. What Are USPS ® Flat Rate Boxes?įlat Rate Boxes charge one flat rate no matter what you are shipping.'If it fits, it ships!' Using flat rate shipping options can save your business as much as 50% on shipping costs compared to the other major carriers' rates. I can say with confidence that flat rate shipping tops our list! USPS flat rate boxes and envelopes are boxes with flat shipping postage rates-no matter how heavy the package! If you are shipping small, heavy items, flat rate is the best deal out there. As part of our effort to make sure our customers get the best deals on shipping, we are talking about some of our favorite cost-saving services.

Sizes of usps flat rate boxes