
These envelopes are a great way to save money.

It means that you will pay the exact price for the envelope or box you chose, and not according to the amount or distance of the shipment. These envelopes (which come in 7 different sizes) feature one low flat rate. Priority Mail Flatrate Envelope is a popular USPS mail product.

And when shipping packages, select First Class Large Package.Usps Flat Rate Envelope Restrictions In 2022 (Full Guide) We suggest you review your shipping process to keep your larger packages in the smallest box possible to avoid these surcharges. * Starting April 3, 2022, the USPS is adding new surcharges for large packages: That is the exact cubic dimension of your package. Multiply the Length, Width, and Height, and then divide that total by 1,728. For boxes that aren't square, measure the Length, Width, and Height of your box in inches. A 2 cubic foot square box is pretty big and well beyond the size of most packages being shipped. A square package 2 feet by 2 feet is 2 Cublic feet. A square package 1 foot by 1 foot is 1 cubic foot. * Calculating the cubic dimensions of your packages isn't difficult. And when shipping packages, select Large Package.

* Does not apply to First Class and Media Mail.
