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2 square mailer boxes lying flat on top of each other, the top one is open and filled with cookies. The boxes are multi-colored and branded.
A square mailer box filled with goodies from a travel agency.
3 square mailer boxes lying flat showing the brand name on the top lid of the box.
An open blue square mailer box with an all- white inside.
3 square mailer boxes two of which are lying flat and a third is standing on its end. The top flat box is open showing a message inside.
2 square mailer boxes lying flat on top of each other, the top one is open and filled with cookies. The boxes are multi-colored and branded.
A square mailer box filled with goodies from a travel agency.
3 square mailer boxes lying flat showing the brand name on the top lid of the box.
An open blue square mailer box with an all- white inside.
3 square mailer boxes two of which are lying flat and a third is standing on its end. The top flat box is open showing a message inside.
Example 6 of selected product

Square Mailer Boxes

Send your products in style with square mailer boxes. These cardboard boxes can be mailed without secondary packaging.
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Create a unique unboxing experience with square mailer boxes.

  • 2 size options
  • 1/8" white B-flute corrugated cardboard
  • Full surface exterior printing
  • No minimum order
  • 100% recyclable

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.

VistaPrint offers Square Mailer Boxes design templates in assorted styles.

Designs

Select a design template to preview it on the product. Click 'Continue' to customize it.

Reviews

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Ratings Distribution

Reviewed by 1 customers

no

Jul 30, 2023 | Scalpillaire | Verified Buyer
this was literally a pizza box with my custom design. the size I indicated was wrong
Response from Vistaprint Customer Care Team:
We apologize for the inconvenience caused by the incorrect size of the Mailer Boxes with your custom design. Your satisfaction is important to us, and we regret that we didn't meet your expectations. We're more than willing to make things right for you. Kindly respond to this email with the images of the Boxes received, and we'll work with you to find a solution that you'll be pleased with. Thank you for bringing this to our attention, and we look forward to hearing from you.
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Work with a designer

Let us design it for you

No more guesswork. We take care of the entire design process, from brainstorming ideas to delivering the files to your account.

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Frequently asked questions

The box will arrive flat-packed, but assembly is simple.

We offer various ways for you to start designing. You can download one of our many templates, upload your own unique design, or use one of our design services. Remember to remove the die-lines from your uploaded image, otherwise they will be printed along with your design.

Our square mailers are made of white B-flute, corrugated cardboard, which is strong enough to endure most shipping scenarios.

Here is the weight of each box according to its size:

  • 12" x 12" x 2.25": 8 oz.
  • 14" x 14" x 2.25": 10 oz.

Yes, VistaPrint’s square mailers are widely recyclable, based on many recycling programs. This may vary depending on the area in which you are using and trying to recycle our products, so we recommend you check in with local resources and recycling programs to confirm.

Yes, you can. There’s no minimum quantity order. Whether you need 1 custom-printed square mailer box with your design to check the quality or a larger batch for your full order, we’ve got you covered.

Yes. You can order sample boxes in all our available sizes. We'll send a box pre-printed with a sample design for only $4 – and get free standard shipping when you use code SAMPLEBOX at checkout. This way, you can get a feel for the quality and try out different sizes before you order your one-of-a-kind design in bulk. Order your sample square mailer boxes now. And if you'd like to see your unique design in print, you can order 1 custom-printed square mailer box on this page to make sure everything looks as you envisioned before placing your bulk order.