

The weight limit for commercial flats or large envelopes is 13 ounces, and for First-Class Package service or commercial parcels is 15.999 ounces. USPS First-Class Mail is a cost-effective option for sending lightweight personal and business packages. Among the commonly used mailing class options with USPS are Priority Mail, Express Mail, and First-Class Mail. The USPS categorizes mail according to classes. In these cases, there are no refunds for postage and fees. **Overweight and oversize pieces are nonmailable and will be assessed overweight and oversize item charges, respectively. *Data are based on the guidelines provided here: and. The package should not be more than 70 pounds in weight. Length (longest side of the parcel) and girth (measurement around the thickest part) combined should not be more than 108 inches.įor USPS Retail Ground, it must be not more than 130 inches. What you can mail with USPS and their required dimensions are as follows: Parcels, on the other hand, must be sent using tracked mail, such as Priority Mail or using Flat Rate boxes. Letters and large envelopes (flats) are what can be sent using stamps. Knowing the shape of your mail or package can help you choose the right services and know how much you will pay. This makes it important to know about the size and weight requirements when sending packages by mail.
If the postage is not sufficient to cover the cost of delivering the mail, the package or letter may be delayed or the person receiving it may need to pay for the additional postage in order to receive it. Sending thin packages using stamps is a great option for sending thin packages, as it is hands down the cheapest option available. If you’re planning to mail a package, here’s a quick guide to help you know the size of the package you can mail with stamps and decide which service is best for you.

USPS Retail Ground for packages up to 70 pounds with lengths and girth not exceeding 130 inches.Priority Mail and Priority Mail Express for heavier packages up to 70 pounds.First-Class Mail for packages weighing less than 13 ounces.First-Class Mail 15" x 12" x 0.75" with the max weight of 13oz, or 38 x 30 x 1.9cm with the max weight of 368.5gģ8 x 27 x 2cm with the max weight of 500g
