Use our Priority Mail Flat Rate Envelopes or Boxes that come in standard sizes so you don't have to worry about measuring them. When sealing a Flat Rate Envelope or Box, the container …

Shop our selection of Priority Mail Shipping Supplies on the USPS.com Postal Store

Flat-Rate Package Options If It Fits, It Ships ®. Priority Mail ® service offers a variety of Flat-Rate Boxes and Envelopes that ship for the same price to any domestic address, regardless of how …

The Priority Mail Flat Rate® Medium Box is an easy way to ship featuring predetermined rates regardless of weight (domestically) or destination. This item ships in single, or a pack of 10 or …

The Priority Mail Flat Rate® Large Box features predetermined rates regardless of weight (domestically) or destination, similar to other Flat Rate products. This item ships in single, or a …

Use USPS Priority Mail Express Shipping Boxes that come in standard sizes so you don’t have to worry about measuring them. Use your own box and pay by weight and zone (distance):

Weight restrictions for Priority Mail International Large and Medium Flat Rate Boxes are 20 pounds, and 4 pounds for Priority Mail International Flat Rate Envelopes and Small Flat Rate …

Jul 10, 2022 · The Priority Mail® Top-Loading Large Box is a rectangular–shaped box that accommodates a variety of items such as clothing, books, and hats. This item ships in a pack …

The maximum size for Priority Mail items is 108 inches in combined length and girth (the length of the longest side, plus the distance around its thickest part).

This item ships in singles and packs of 10 or 25 boxes. An order of 1 equals, 10 or 25 boxes depending on your selection under Format. Each Priority Mail and Priority Mail Express …