The Priority Mail® Medium Flat Rate Box - 1 is a quick, easy, and convenient way for you to ship USPS Priority Mail packages. The Priority Mail Medium Flat Rate Box features predetermined rates regardless of weight (domestically) or destination, similar to the Flat Rate Envelope.
Inside Dimensions: 11" x 8-1/2" x 5-1/2"
Outside Dimensions: 11-1/4" x 8-3/4" x 6"
- Can be used for Domestic Priority Mail ($12.65) and International Priority Mail ($42.25 to Canada - $61.75 to all other countries, 20 lb weight limit applies)
- Commercial prices are available for postage paid through Click-N-Ship® service, authorized PC Postage vendors, and other authorized postage payment methods. The Domestic Commercial Base price is $11.30.
- Visit Click-N-Ship to purchase and print postage from your home or small business.
- The U.S. Postal Service offers free Package Pickup from your home or office at a time and place convenient for you. To schedule Package Pickup and for other pickup options and availability, visit Schedule a Pickup.
For more shipping information, please visit: USPS Ship a Package