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Custom Mailer Boxes

Get it FAST! Expedited Production available.
High quality printing on durable Corrugated Cardboard.
97 Reviews
CUSTOMIZE & CHECK PRICES
Production Time
Subtotal: $1132.50
Ready to Design Your Box Online?
Using a Professional Design Editor?
Value Props
Custom Dimensions
Custom Dimensions
No Minimum
No Minimum
High Quality Full-Color
High Quality
Full-Color Printing
Intuitive 3D Design Tool
Intuitive
3D Design Tool
Customer Service
Super Responsive Customer Service
Sustainably Sourced and Recyclable
Sustainably Sourced and Recyclable
Dimensions Image

Dimensions

Unbox Practical, Eye-Catching Packaging

Our custom mailer boxes are perfect for your business, whether you’re supplementing your brick-and-mortar retail sales or diving deep into e-commerce. They’re durable, easy to assemble, and fully customizable, both inside and out. Enhance your brand’s visibility and create a memorable unboxing experience with our secure, stylish packaging.

Our boxes are perfect for:

  • E-commerce Orders
  • Subscription Boxes
  • Retail Displays
  • Corporate Gifts
  • Promotional Kits
  • Frequently Asked Questions

    Q: How can I get a dieline template?
    A:

    After completing your order, we’ll send you the dieline template file through your given email address.

    Q: How can I create my design?
    A:

    We have an Online Design Studio that makes it super easy to add logo, text, and graphics to your box within minutes. You can also use a professional desktop application like Adobe Illustrator® and send us the completed artwork. Already have a file but have questions about your design? Email our packaging experts at artwork@packola.com for a review.

    Q: Can I buy a single mailer box?
    A:

    Yes, you can order one (1) mailer box. We have no minimum quantity order. You can order as few or as many as you need.

    Q: What is the difference between shipping boxes and mailer boxes?
    A:

    Shipping boxes are larger and used for bulky items, while mailer boxes are smaller and designed for individual or small items. Mailer boxes are ideal for e-commerce and don’t require adhesives for assembly.

    Q: How will my boxes be shipped?
    A:

    Your boxes will be shipped flat and unassembled.

    Q: Can I ship a mailer box without using any other external packaging?
    A:

    Yes, you can. The corrugated cardboard is strong enough to withstand the rigors of shipping. However, we recommend using external packaging such as a shipping box to provide a better unboxing experience.

    Q: Why did you print a QR code on my custom boxes?
    A:

    The QR code makes it easier for us to track your orders while it’s in production. This means we get to finish it faster so you can receive it as early as possible. It won’t affect the overall look of your custom box since it’s printed on a hidden area.

    Our QR CodeInner Flap PositionedNot Visible Post Assembly

    Q: Can I order a box type other than mailers, shippers, and product boxes?
    A:

    Want a specific box type you don’t see on our website? Contact us at info@packola.com or 1-855-PACKOLA so our customer service team can help you.

    Q: Is a mailer box easy to assemble?
    A:

    Yes. The mailer box ships flat and pre-scored. Follow the steps in the video to quickly assemble your custom box:

    Q: How do I know what box size I need?
    A:

    Packola measures the interior dimensions for box production, meaning the sizes you input are the measurements inside the box when it is folded. You can follow these steps to help gauge the box measurements you need:

    • Lay out and organize all the items you plan to put inside your box on a flat surface.
    • Stack them as you would when packing the box.
      • Include any decorative packaging material, such as bubble wrap or packaging foam.
    • Measure the dimensions accordingly in inches
      • The length should be the left-to-right dimension
      • The width is the front-to-back dimension
      • The depth/height is from the flat surface to the top of the tallest item
    • Add a 0.25" margin to each dimension to ensure easy packaging
    Q: How much weight can your corrugated boxes support?
    A:

    Our corrugated boxes have a 32 ECT rating. Boxes with 32 ECT rating usually support the following weights:

    E-flute: up to ~20-25 lbs

    B-flute: up to ~30-40 lbs

    Customer Reviews
    Verified buyer
    Great value good price February 3, 2026 by Deb ( NY )
    “These mailer boxes offer exceptional value, balancing a budget-friendly price point with high-quality durability that keeps items secure. The customer service team truly stands out, consistently going the extra mile to ensure every order is handled with care and precision. It is rare to find such a reliable product backed by representatives who are so genuinely dedicated to customer satisfaction.”
    Verified buyer
    February 2, 2026 by Jennifer Wallace ( AL )
    “The final product looks great! I am pleased with how they turned out. The customer service was great as well.”
    Verified buyer
    Errors on Final Product January 30, 2026 by Sarah Nagel
    “On about 75% of our boxes, there was a small strip of a graphic/pattern visible on the seams of the box where it shouldn't appear, bot hon the front and back of the box. It looks like the artwork accidentally got shifted up by 1/4” during the production process. This is not how it appears on either the editable version of the product on Packola's website, nor the PDF proof that was sent to us. When I contacted packola about this, they said that this margin of error fell within "industry standards" and due to calibration limitations of commercial printing machines, a shift of up to 0.125 inches in any direction is considered acceptable. They said because of this, they would not consider the shifting to be a mistake on their end. Overall this is a minor flaw, but it is still pretty visible on the boxes and is disappointing as it isn't what was approved. Packola was very kind and professional throughout the process, and offered us a $250 credit for our next order to make up for the mistake. Everything abbot the process was easy and simple, and Packola's customer service was kind, punctual, and helpful. However after the mentioned printing issue, we will likely not work with them again in the future.”
    Verified buyer
    I love my book boxes! January 30, 2026 by Gail Rothman
    “I designed branded boxes for sending out my book to promote my business and Packola pointed out where my logos were off so I could make sure my proof was perfect.”
    Verified buyer
    Repeat customer January 29, 2026 by Riley ( CA )
    “Great quality and better than I expected”
    Verified buyer
    January 25, 2026 by Nicole Bell
    “Product was great”
    Verified buyer
    January 24, 2026 by Katrina Roby
    “the color seems to be fading.”
    Verified buyer
    January 16, 2026 by Ethan Gallagher ( OH )
    “I sent an email to your claims department. We ordered 100 boxes and although the print and design of them are good, they all came out upside down. I received this email before I got email back from claims so this is where I'm saying it. Please get back to the email I sent so we can get that sorted out and I can give a better review :) Thanks!”
    Verified buyer
    January 16, 2026 by Dylan Friese ( CT )
    “Great product! Great communication to verify proofs and delivery was faster than expected!”

    Crafting the Packola Unboxing Experience

    Having an unforgettable unboxing experience is a non-negotiable. It can be the x-factor that converts first-timers into loyal, repeat customers. Even if you have no experience with creating custom boxes, we’re here to guide you every step of the way. We have a curated selection of blog articles you may find useful in creating a customized experience using boxes:

    Wondering what kind of products you can use our boxes with? Packola’s mailer boxes are a versatile branding solution for any business. Here are some of the ways our clients use them: