Priority Mail, including Priority Mail Flat Rate shipping products, has fast shipping times (2-3 days) with flexible prices. Get free flat rate boxes and print postage labels online.

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

The table below shows options for diferent Priority Mail Boxes and Envelopes, along with dimensions, online postage pricing and weight options.

Sep 12, 2025 · For a large Flat Rate Box, expect to pay $24.75 retail or $19.51 commercial; for a small Flat Rate Box, $10.40 retail or $8.51 commercial. These rates simplify shipping heavy items over …

Jan 14, 2025 · Learn everything you need to know about USPS Priority Mail Boxes, including sizes, prices, and shipping tips. Find out how to ship packages..

Jul 7, 2025 · See the official 2025 prices for a USPS PO Box, with monthly costs ranging from $5 to $126. This guide details all rental fees, key deposits, and top alternatives to find your best option.

Feb 9, 2024 · The USPS P.O. Box comes in different sizes and contract lengths. Learn how much each type is and what other factors affect the final cost.

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

The Priority Mail Flat Rate® Large Box is a quick, easy, and convenient way for you to ship Priority Mail® packages. It features predetermined rates regardless of weight (domestically) or destination, …

Priority Mail Boxes Small Cremated Remains Kit 1 Set of 1 9-5/8" (L) x 7-3/4" (W) x 6-1/4" (H)