USPS, FedEx, UPS, DHL, & More

Are USPS Boxes Free? How to Save Money Shipping with the Postal Service

By: Michelle McNamara | May 4, 2018

Are USPS Boxes Free? How to Save Money Shipping with the Postal Service

If you’re starting an e-commerce business and trying to determine your shipping strategy, you may be wondering: are USPS boxes and envelopes free? Shipping costs, including the money spent on packaging materials, can have a big impact on your bottom line. In fact, 68 percent of businesses listed cost of shipping as their biggest operational challenge, according to our State of Shipping report.

To help business owners manage their shipping costs, the USPS provides free shipping boxes and envelopes for some of their popular service levels.

Here are a few tips to help you take advantage of U.S. Postal Service’s free boxes, envelopes, and shipping supplies.

How Can I Get Free USPS Boxes?

You can order free boxes and envelopes online at the USPS store. The Postal Service will even deliver the supplies to your door for free. Most boxes will typically come in packs of 10 or 25, so keep that in mind as you complete your order. When you select your quantity, you’re choosing how many packs (of 10, 25, etc.) you want. You can also pick up free supplies at your local Post Office.

Here are the USPS Boxes You Can Get for Free

The USPS provides free shipping boxes and envelopes for Priority Mail and Global Express Guaranteed packages. Here’s a breakdown of the box and envelope dimensions.

USPS Priority Mail Flat Rate

USPS Priority Mail Flat Rate Boxes & Envelopes
Item Dimensions
Gift Card Envelope 10″ x 7″
Flat Rate Envelope 12 1/2″ x 9 1/2″
Legal Flat Rate Envelope 15″ x 9 1/2″
Padded Flat Rate Envelope 12 1/2″ x 9 1/2″
Small Flat Rate Box 8 5/8″ x 5 3/8″ x 1 5/8″
Medium Flat Rate Box – 1 (top-loading) 11″ x 8 1/2″ x 5 1/2″
Medium Flat Rate Box – 2 (side-loading) 13 5/8″ x 11 7/8″ x 3 3/8″
Large Flat Rate Box 12″ x 12″ x 5 1/2″

USPS Priority Mail

USPS Priority Mail Boxes & Envelope
Item Dimensions
Priority Mail Shoe Box 7 1/2″ x 5 1/8″ x 14 3/8″
Priority Mail Box – 7 12″ x 12″ x 8″
Priority Mail Box – 1092 12 1/8″ x 13 3/8″ x 2 3/4″
Priority Mail Box – 1096L 9 1/4″ x 6 1/4″ x 2″
Priority Mail Box – 1095 15 1/4″ x 12 3/8″ x 2 3/8″
Priority Mail Box – 1097 11 1/2″ x 13 1/8″ x 2 3/8″
Priority Mail DVD Box 7 9/16″ x 5 7/16″ x 5/8″
Priority Mail Box – 4 7″ x 7″ x 6″
Priority Mail Flat Rate Envelope 12 1/2″ x 9 1/2″

USPS Priority Mail Regional Rate

USPS Priority Mail Regional Rate Boxes
Item Dimensions
Priority Mail Regional Rate Box – A1 10″ x 7″ x 4 3/4″
Priority Mail Regional Rate Box – A2 10 15/16″ x 2 3/8″ x 12 13/16″
Priority Mail Regional Rate Box – B1 12″ x 10 1/4″ x 5″
Priority Mail Regional Rate Box – B2 14 3/8″ x 2 7/8″ x 15 7/8″

USPS Dual-Use Priority Mail & Priority Mail Express

USPS Priority Mail & Priority Mail Express Boxes
Item Dimensions
Priority Mail/Express Box – 1 11″ x 8 1/2″ x 5 1/2″
Priority Mail/Express Box – 2 11 7/8″ x 3 3/8″ x 13 5/8″
Priority Mail/Express Small Tube 25″ x 6″ x 6″ x 5 7/8″
Priority Mail/Express Medium Tube 37 11/16″ x 6 1/8″ x 5 1/8″ x 5 1/16″

USPS Priority Mail Express

USPS Priority Mail Express Boxes & Envelope
Item Dimensions
Priority Mail Express Box – 1 11″ x 8 1/2″ x 5 1/2″
Priority Mail Express Box – 2 11 7/8″ x 3 3/8″ x 13 5/8″
Priority Mail Express Box 15 1/4″ x 12 3/8″ x 3″
Priority Mail Express Tyvek Envelope 11 5/8″ x 15 1/8″

Global Express Guaranteed

USPS Global Express Guaranteed Envelopes
Item Dimensions
Global Express Guaranteed Plastic Envelope 15 1/8″ x 11 5/8″
Global Express Guaraunteed Letter Envelope 12 1/2″ x 9 1/2″

Are There Any Restrictions to Keep in Mind?

The service level on the packaging must match the service level on the label. So, if you’re shipping the package via Priority Mail Express, you need to use a Priority Mail Express box. You cannot use these boxes for service levels like Media Mail or First-Class.

The service level on the packaging must match the service level on the label. So, if you’re shipping the package via Priority Mail Express, you need to use a Priority Mail Express box. You cannot use these boxes for service levels like Media Mail or First-Class.

Don’t delay—order your free USPS boxes today, so you can save on packaging costs!

You might also be interested in our Priority Mail Flat Rate guide, and if you’re going to start shipping soon, don’t forget to check out our domestic FedEx vs. UPS vs. USPS rate comparison.


Shippo is a multi-carrier API and web app that helps retailers, marketplaces and platforms connect to a global network of carriers. Businesses use Shippo to get real-time rates, print labels, automate international paperwork, track packages and facilitate returns. Shippo provides the tools to help businesses succeed through shipping.

Michelle McNamara

Content Strategist at Shippo

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