Mailer Box

A versatile custom mailer box that's stylish, sturdy and ready to ship directly in the mail. It looks great in any color and works for retail-ready gift boxes, subscription boxes, and e-commerce packaging.

*All sizes are listed as interior dimensions in inches.

**The pricing may vary depending on ink coverage.

  • Customize in 3D
  • Custom Sizing
  • Material
  • Print

Easy to create

  • Select your Size

    1. Select your size

    Custom sized just for you! Choose the size of your custom mailer boxes to give your product the perfect fit.
  • Make it your own

    2. Make it your own

    Create the perfect mailer boxes by adding your logo, colors, and graphics to stand out from the rest of the crowd.
  • Get a quote instantly

    3. Get a quote instantly

    You're almost ready to order! Pick the number of custom cardboard boxes you need and get pricing in real-time.
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Select your size Make it your own Get a quote instantly

Size it up

Building the perfect box for your product means choosing the custom size to fit your needs. With the right-sized mailer box, you'll save money on shipping and give every customer an unforgettable unboxing.

Box Sizes

Material options

With a gorgeous matte finish, our classic white custom cardboard boxes are our most popular option. It takes well to any color especially bright, vibrant hues.

Brown inside and out, our natural kraft cardboard is as eye-catching as it is rugged. It works well with deep colors, giving an unmistakable warm and muted finish to your design.

When you're ready to get fancy, Dreamcoat is the obvious choice. It's our premium material with a satin finish. You'll notice a glossy surface on printed, high-saturated areas that creates a striking contrast with unprinted areas.

  • Classic whiteClassic white
  • KraftKraft
  • DreamcoatDreamcoat™
Box Colors

Print in all colors

Your design doesn’t have to be limited to just one color. Choose as many colors as your heart desires with full digital CMYK printing and stay under budget.

No setup costs. No limits on color. What more could you ask for?

Box Colors
Thickness and durability

Stylish durability

When your product demands protection but also needs to arrive in style, our custom mailer boxes are your best choice. Mailer boxes come in E-Flute, 1/16" or B-Flute 1/8" single-wall corrugated cardboard and can happily ship between 1-30 lbs. We'll automatically select the best thickness for your box size to ensure it's extra sound and sturdy.

Get inspired

We're here to help. Whether you're designing gift boxes with your logo or need help with your custom mailer box design, there's lots of inspiration to be found for your product packaging.

Classic Carton
Mailer box
Mailer box
Mailer box
Mailer box
Mailer box
Mailer box

All custom boxes are produced right here in the USA

Alpacka Alpacka

Simple sustainability

We care deeply about sustainability and we're constantly innovating to create sustainable packaging for the years to come. That's why all of our corrugated and paper-based materials are sourced right here in North America with the highest recycled content available whenever possible.

Easy to assemble

Custom mailer boxes are shipped flat (to keep shipping costs low!) and assembling your boxes couldn't be easier. Just fold, snap, tuck and close!

Sample the goods

We really want you to love your order so we're putting you in the driver's seat. Start off with a pre-printed sample kit to help you choose your materials and see the quality of our boxes firsthand. When you're ready to test your custom packaging design, just checkout and order a single mailer box.

Request a sample kit Test my Design