What is Priority Mail USPS?

Priority Mail USPS

Priority Mail USPS is a service that includes tracking and delivery in 1-3 business days. Priority Mail USPS is a flat rate service lets you ship packages up to 70 lbs to any state at the same price.

What are Priority Mail USPS Weight, Size & Shape Requirements?

Priority Mail USPS requirements are to have a maximum weight is 70 lbs and maximum combined length and girth (girth is the distance around the thickest part) is 108″.

When sealing a Flat Rate Envelope or Box, the container flaps must be able to close within the normal folds.

You can also use the dedicated Priority Mail USPS shipping calculator here.