Where Can I Buy Flat Rate Shipping Boxes -

: Independent stores like PostNet or Mail Boxes Etc. typically stock various flat rate options and can help with packing.

: You can find flat rate boxes for sale on Amazon and eBay, though these are often resold or specialized versions. where can i buy flat rate shipping boxes

: You can also order these supplies by calling the USPS Package Supply Center at 1-800-610-8734 . 2. FedEx and UPS : Independent stores like PostNet or Mail Boxes Etc