A Plain Mailer Box is a die-cut, one-piece corrugated shipping box built for ecommerce brands that want a clean, unbranded look or a blank canvas to print later. Made from sturdy corrugated board and custom-printed to your spec, it ships flat and folds in seconds with no tape required.
The interlocking-flap design means your team assembles each box by hand in a single motion, so packing days move faster and your products arrive without crushed corners. Light E-flute keeps shipping weight and postage low, while a plain exterior stays cost-friendly for subscription boxes, sample sends, and high-volume order fulfillment where speed matters more than graphics.
Materials & Specifications
- Material: Corrugated board, E-flute for light goods or B/C-flute for heavier items
- Construction: Die-cut one-piece mailer with interlocking flaps, no tape needed
- Printing: Full-color CMYK available inside and out
- Finishing options: Matte or gloss lamination, custom inserts or partitions
- Sustainability: FSC-certified paper option
Best Used For
- Subscription boxes and recurring monthly shipments
- Ecommerce order fulfillment and apparel sends
- Sample kits and promotional mailers
- Brands that add their own labels or stickers post-purchase
Printing & Finishing
Keep it fully plain or add upgrades when you are ready. Choose full-color CMYK on the outside, inside, or both, then add matte or gloss lamination for a more finished feel. Custom inserts and partitions hold products in place during transit.
Why Order from Teal
Teal is a US-based custom packaging manufacturer with a 50-unit minimum order and free design help on every project. You get full-color CMYK printing, an FSC-certified paper option, free US shipping, and a choice of 7-business-day standard production or 5-day rush. Order a free sample kit (just $19.99 shipping, credited to your first order).
FAQ
What's the minimum order quantity? The standard minimum is 50 units. Only specialty rigid boxes require 100 or more.
How long is production? Standard production runs 7 business days, with a 5-day rush option when you need boxes sooner.
Can I get a sample? Yes. The free sample kit (just $19.99 shipping) lets you check the board and build firsthand, and the cost is credited to your first order.
Is it recyclable? Yes. Corrugated board is widely recyclable, and FSC-certified paper is available on request.
Request a free quote and we'll get back to you within 4 business hours.
How to Order Plain Mailer Box
Ordering custom plain mailer box is simple:
- Submit a quote request with your dimensions, quantity, and design references
- Receive quote guidance within one business day
- Send your artwork or work with our design team (free dieline + 2 revision rounds)
- Approve the digital proof and production begins
- Standard production takes 7 business days after proof approval; complex or high-volume orders may require 10-14 business days



