: Flat rate boxes are intended for a single shipment and cannot be reused for subsequent mailings.
: You cannot use your own box and claim the flat rate price; you must use the branded USPS Flat Rate container.
To ensure you receive the flat rate pricing, you must follow these USPS regulations: where to buy flat rate boxes
While USPS is the direct provider, you may find boxes at other retailers, though some may charge a nominal fee or require specific service usage:
: You can call the USPS Package Supply Center at 1-800-610-8734 to request free supplies by phone. Alternative and Retail Options : Flat rate boxes are intended for a
: Retailers like Office Depot and Staples often stock these boxes. They may be free if you use their on-site shipping services.
You can obtain official USPS flat rate packaging through these official channels: Alternative and Retail Options : Retailers like Office
: Local franchises like PostNet or Mail Boxes Etc. frequently keep flat rate boxes in stock for customer use.