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USPS® Shipping Services
Learn about the shipping services and rates that USPS® offers.
21 articles
Why you shouldn't use Medium or Large Flat Rate Boxes
How do you use the USPS Media Mail® shipping service?
What is Priority Mail Cubic?
Free USPS Mailing Boxes for Priority Mail Cubic
Can I use Priority Mail Cubic with a softpack or padded envelope?
Pirate Ship now offers Priority Mail rates BELOW Commercial Pricing!
USPS Nonstandard Fees
USPS July 2023 Changes: New Rates & First Class Package and Parcel Select merge into Ground Advantage
Maximum size and weight limits for USPS® services
What is Dimensional (DIM) Weight pricing?
Why does my USPS label have an old tracking number?
USPS: Prohibited Items
How to intercept or return a package
Cheapest way to ship posters
List of countries with USPS® E-DELCON International Tracking
What is the USPS APV Automated Package Verification System?
Does Pirate Ship offer stamps or postage for mailing letters or flats?
The cheapest ways to ship with USPS®
What is Weight-based Priority Mail?
Do I need to use a Priority Mail® box if I buy a Priority Mail® label?
2024 USPS rates go live January 21st