CustomBoxline offers classic matte black mailer boxes that are perfect for any traditional retail store or an online e-commerce business looking for an affordable and durable shipping box that is custom-made as per their product requirements. For their easy assembly and rich color tone, our black corrugated mailers are the top pick for businesses. Our black corrugated mailer boxes are sturdy enough to hold up to 10lb in transit. Standard black corrugated mailing boxes are made of E-Flute (32 ECT – 1/16″ thick) that are suitable for most packing and shipping applications. Should you require more strength and durability, our custom black mailer boxes can further be customized to hold heavier products using various flute combinations. Fill out our quote request form to get an estimate on black mailer boxes bulk volume discount with free shipping.
Request for Quotation
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SBS (16 to 24 pt), Kraft, Corrugated (E, B, AB etc. flutes)
Offset (CMYK, Up to 4PMS colors)
Matte/Gloss Lamination, Spot UV, Soft touch
Digital 2D Flat view or 3D mockup
Minimum 300 dpi resolution is required for optimal results
RGB to CMYK
Color mode must be in CMYK to be a print ready document. In the event that file(s) are submitted utilizing some other color mode, for example RGB, the file(s) will be changed over to CMYK during preflighting
Bleed, Cutline and Safety
Add a total of 0.25” to your original size for proper bleed. (0.125” to each side of your document)Artwork Guidelines
Most orders are shipped within 7 to 10 working days.
Customboxline makes every effort to ensure a timely delivery, There are however situations that are beyond our control and the delivery times may be affected by the following,
Customboxline strives to not just meet your expectations but to help you achieve success in your business. However, in the rare event that a “manufacturing defect” occurs, we offer a re-print or a refundThe deadline for all reprint / refund requests is “7 calendar days” from the delivery date. Lost shipments must be reported within 15 days from the ship out date.
We understand that unexpected events occur and we do our best to accommodate. If your circumstances are likely to change and you wish to cancel an order that is already in process, please inform us as soon as possible. Your refund will depend on how close your order is to completion. Of course, if we have not begun working on your order, you are entitled to a complete refund.Shipping Policy
Customboxline works with all major carriers to deliver packaging material worldwide. Boxes are shipped flat. Tracking information is provided as soon as it becomes available!*We are not able to work with third party shipping at moment.
Your peers think we rock!
This was my first experience with CustomBoxline and I must say it was no less than an
experience. Mark worked with me throughout the project. He was helpful, informative, and
patient. I went
through several revisions resulting in a simple but effective package that arrived as
good time. Thank You Customboxline.com
Great vendor to do business with. Knowledgeable and helpful staff, easy design to production
quick turnaround of excellent quality product. We used CustomBoxline for multiple projects
completely satisfied each time. Highly recommended.
Customboxline is easy to work with and fast to deliver.
Excellent service, kept me posted at every step in the process
These Boxes are very high quality and they are a perfect size.
Not an average box maker and quality delivered as promised.
Order boxes each season and they always deliver as promised.
Etremely pleased with the product and the quick turnaround.
Quick response to question/concern emailed. Very accomodating.
I'll definitely keep buying my boxes here. Highly recommend.