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Custom Mailer Boxes

Get it FAST! Expedited Production available.
High quality printing on durable Corrugated Cardboard.
47 Reviews
CUSTOMIZE & CHECK PRICES
Production Time
$4.53 each
Subtotal: $1132.50
Ready to Design Your Box Online?
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Need structural design, inserts, or more custom options? Email us
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
    Thanks! August 27, 2025 by Nick ( TX )
    “Thanks you!”
    Verified buyer
    Great company to deal with! August 22, 2025 by Frank Mignosi ( NJ )
    “I had a great experience with Packola! Their website made it super easy to design my boxes, and the final product came out exactly as expected. From payment to delivery took just over a week, which was faster than I anticipated. The email updates kept me informed every step of the way, and I didn’t even need to call anyone. Smooth process, great quality, and quick turnaround—highly recommend!”
    Verified buyer
    August 12, 2025 by Jeremy Eling ( MI )
    “The black color is still streaky. Made changes after first sample, its better, but still not a clean crisp black”
    Verified buyer
    August 7, 2025 by Crystal Bentley ( TN )
    “The quality of these boxes was fantastic. The only problem is that once they are folded into position, they measure about half an inch more than the dimensions quoted. This caused issues with the shipping box since it no longer fit. You may want to include the dimensions of the final folded product in the description.”
    Verified buyer
    July 31, 2025 by Anonymous
    “qwedqefqer”
    Verified buyer
    July 26, 2025 by Erika V
    “The software is very easy to use to design the boxes and they came exactly how I thought they would. I am very pleased with my decision to go with Packola.”
    Verified buyer
    Poor product you have to crease yourself June 24, 2025 by Jay M. ( NJ )
    “Unlike other custom shipper boxes I've orders from companies like Uprinting, these did not come with any pre-creases folding lines, making it time consuming and difficult to assemble, and causing issues with errors when the cardboard creases unevenly.”
    Verified buyer
    June 10, 2025 by KT N. ( MN )
    “The exterior of the boxes is streaky with thin white lines every couple inches across. It also had two circular indents in the middle of the top too which is odd.”
    Response from Packola.com:

    Thank you for your review! We're really sorry to hear that your order didn’t turn out as expected. If you could send us a few photos of what you received, we’d be happy to take a closer look and see how we can make it right.

    Verified buyer
    Product defective May 12, 2025 by Chef Michael Barnes
    “A portion of the boxes i ordered have the top layer of graphics detached from the cardboard, custom boxes aren't cheap to buy so this is a loss for my company that I am having to take.”

    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: