Create a unique unboxing experience with square mailer boxes.

  • 3 size options
  • 1/8" white B-flute corrugated cardboard
  • Full surface exterior printing
  • No minimum order
  • 100% recyclable
  • FSC® certified product: Made from responsibly forested materials

Square Mailer Box Samples: Want to see a pre-printed box in person, before you design and order your own?  Request a sample. Or view all of our packaging sample options here.

Shipping made simpler
Why use multiple types of packaging when you only need one? Our square mailer boxes are made from sturdy, white B-flute corrugated cardboard, so all you have to do is stick a shipping label on them and they’re ready to go. The internal fluting protects your goods by absorbing any bumps and thumps they may receive along the way.

Corner-to-corner printing
These won’t be just any square cardboard boxes, because you’ll be able to design and print the entire exterior surface. What better way to make your brand memorable from every angle? Our custom square mailer boxes are great for smaller subscription orders, apparel, books, stationery, beauty products and more. If you’re looking for boxes with a larger capacity for bigger products or combination orders, check out our mailer boxes.

Intuitive design tools
Maybe you’re new to designing, or maybe you already have a unique logo or design of your own. Using our 3D design studio , you can create the look you’re searching for. Choose from one of our many custom design templates or upload your own logos, images, fonts or patterns. The 3D view lets you see what your boxes will look like in real life. Just make sure you remove the die-lines from your uploaded image before printing, otherwise they will appear on your final product. And that’s it, just sit back and wait for your professionally printed square mailers to arrive.


12 Reviews
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Ratings Distribution
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Ease of Design
Product Quality
Product Value

Reviewed by 12 customers

i would not order his product again.

May 22, 2024 | Elizabeth

I thought quality was bad.

Response from Vistaprint Customer Care Team:

It saddens us to hear that the quality of the mailer boxes failed to meet your expectations. We would love to hear further details on your concerns. Kindly reply to this review email and share the same with us along with any supporting images. We look forward to your response.

Product Quality
Product Value
Ease of Design

Great quality product

May 20, 2024 | Katie | Verified Buyer

I ordered these boxes to ship a book that I wrote to customers. The size was too big but the quality was excellent.

Great quality product

Great product at a reasonable cost

May 2, 2024 | RON | Verified Buyer

Turned out great, very happy with the results.

Box review

Apr 28, 2024 | Robyn | Verified Buyer

This one turned out really cute. I will probably order more of these. They are great for shipping clothes

Super product, arrived FAST

Mar 26, 2024 | Chany | Verified Buyer

Arrived much earlier than promised and that was so appreciated.

Displaying Reviews 1-5

Design Services

Our professional designers can help create the look you want.
Printed Product Design