Mailer BoxesCustom Packaging
Design custom mailer boxes that protect your products and create a memorable unboxing experience for your customers. Built with interlocking flaps that eliminate the need for packing tape, these durable corrugated shippers reduce fulfillment time and material costs. Start building your packaging with Cubit today.

Key Features & Benefits
Everything you need for premium custom packaging.
Tape-Free Assembly
Interlocking flaps create a secure friction fit. This eliminates the need for external packing tape, saving your fulfillment team time on the packing line.
Fast Turnaround
Get your packaging exactly when you need it. Standard digital and flexography production runs are completed in just 10 to 15 business days.
Custom Brand Printing
Print high-quality graphics in full CMYK. You can apply custom designs to both the exterior and interior of the box for maximum visual impact.
Durable Protection
Constructed with strong corrugated board that folds over to create double-thick side walls. This structure keeps fragile goods safe during shipping.

The #1 e-commerce box. Fully printable inside and out. Roll-end tuck top or tab lock styles.
Custom Mailer Boxes

Unbleached kraft mailer boxes. The natural brown look that says eco-friendly without saying a word.
Kraft Mailer Boxes

Bright white mailer boxes that make your printed design look its best. The go-to canvas for brands.
White Mailer Boxes

Matte or gloss black exterior for a luxury unboxing moment. Custom print on white interior available.
Black Mailer Boxes

Mailer boxes in any Pantone color. Match your brand exactly with custom PMS ink.
Colored Mailer Boxes

Full-wrap printed mailers with your artwork covering every surface. CMYK or Pantone options.
Printed Mailer Boxes

Custom print on the inside flaps for a surprising unboxing reveal. Your brand story, inside and out.
Interior Print Mailer Boxes

Tab-and-slot closure that snaps shut without tape. Clean opening experience for e-commerce brands.
Tab Lock Mailer Boxes
Available Mailer Formats
Premium mailer structures designed for secure shipping and memorable unboxing experiences.

Roll End Tuck Top (RETT)
The standard self-locking box where the top lid folds down and tucks neatly into the front. Best for general e-commerce shipping and subscription boxes.

Roll End Tuck Front (RETF)
Features side cherry locks that slot securely into the front panel. Ideal for high-end retail items requiring extra security and internal dust protection.

Peel and Seal Mailer
Equipped with an adhesive strip for sealing and a tear-strip for easy opening. Best for high-volume fulfillment, preventing theft and reducing assembly time.

Literature Mailer
A flat, front-tuck mailer designed with minimal depth. The perfect shipping solution for books, documents, stationery, and flat folded apparel.

Reverse Tuck End (RTE) Mailer
Features ends that tuck in opposite directions, utilizing less board material during production. Excellent for lightweight retail products and cosmetics.

Tab-Lock Mailer
Features a top lid with a single tab that slots directly into the front base. A great choice for eco-friendly brands wanting a minimal, tape-free closure.
Specifications
Detailed technical information for informed decisions.
Materials
- E-Flute Corrugated32 ECT / 1.5mm thick
- B-Flute Corrugated32 ECT / 3.0mm thick
- F-Flute Micro-corrugated0.8mm thick
- C-Flute Heavy Duty44 ECT / 4.0mm thick
Printing
- Digital PrintingFull CMYK, Low MOQ
- Offset LithographyHigh resolution, 500+ units
- FlexographyDirect print, High volume
- Screen PrintingSpot colors on kraft
Finishes
- Matte LaminationSmooth, non-reflective
- Gloss LaminationHigh shine, protective
- Soft-TouchPremium velvet feel
- Spot UVTargeted glossy areas
Built With Quality
Detailed view of the materials we use.

E-Flute Standard Kraft Corrugated
A durable 32 ECT board measuring 1.5mm thick. This unbleached, natural brown material offers a rustic, organic look that performs exceptionally well with simple, bold print designs.

E-Flute Premium Coated White
Features a smooth, clay-coated surface (Kemi board) on a standard 1.5mm E-flute. This finish provides a brilliant white base that ensures CMYK colors print vividly and accurately.

B-Flute Standard White Corrugated
A thicker 3mm board that offers greater structural support than standard E-flute. Ideal for shipping heavier retail bundles or oversized consumer electronics.

F-Flute Micro-corrugated Board
A slim 0.8mm profile material that bridges the gap between folding cartons and traditional shippers. This provides a refined, sleek appearance while maintaining solid rigidity.

C-Flute Heavy Duty Corrugated
A heavy-duty 4mm board offering a 44 Edge Crush Test (ECT) rating. Designed specifically for bulky, high-weight items like winter apparel or heavy liquid containers.

100% Recycled Post-Consumer Kraft
Manufactured entirely from repurposed cardboard waste. This sustainable option allows eco-conscious brands to lower their environmental footprint without sacrificing box strength.

FSC-Certified Virgin White Board
Sourced from responsibly managed forests, this premium white material carries the Forest Stewardship Council certification. It delivers top-tier structural integrity and pristine print clarity.

Water-Based Coated Compostable Board
Uses non-toxic, water-based aqueous (AQ) coatings to seal the print layer instead of plastic lamination. This allows the corrugated mailer to remain fully recyclable and compostable.
Printing & Finishing
Premium print methods and finishing options to make your packaging stand out.

Digital Printing
Directly prints full-color CMYK artwork onto the corrugated board without the need for expensive print plates. This method is excellent for short-run orders, complex designs, and fast turnaround times.

Offset Lithography
Provides the highest possible print resolution by applying a printed paper sheet directly onto the corrugated board (litho-lam). Recommended for high-volume orders requiring photo-realistic brand imagery.

Flexography
Uses flexible photopolymer plates to transfer ink directly onto the box surface. A highly cost-effective method for bulk runs featuring simple designs, text, or one-color logos.

Screen Printing
Forces thick ink through a mesh screen onto the cardboard. This process delivers bright, dense layers of color that look exceptionally vibrant on raw natural kraft materials.

White Ink Printing
Applies an opaque layer of white ink directly onto the board. This is a crucial addition when printing bright CMYK colors on brown kraft, ensuring the design does not appear washed out.

Pantone Spot Color Matching
Uses precise pre-mixed inks based on the Pantone Matching System. This guarantees that your signature brand colors remain perfectly consistent across different print runs and packaging orders.

Double-Sided Printing
Allows you to apply distinct printed graphics on both the outside and inside of the mailer. Revealing a vibrant internal pattern creates a striking contrast during the unboxing process.

Eco-Friendly Algae or Soy Inks
Replaces traditional petroleum-based inks with sustainable, plant-based alternatives. These inks make the corrugated material easier to recycle while still providing rich, vibrant coloration.
Unlimited Customization
Every inch of your packaging can be customized to match your brand.

Custom Tissue Paper Inserts
Wrap your products inside the mailer box with branded tissue paper. This adds a layer of anticipation to the unboxing process and provides extra protection against internal shifting.

Die-Cut Cardboard Inserts
Secure multiple items safely in one place with tailored structural inserts. This prevents fragile components, like skincare bottles or electronics, from colliding during transit.

Hot Foil Stamping
Apply brilliant metallic accents to your logo or brand messaging. Foil stamping catches the light beautifully, instantly giving your e-commerce shipments a high-end luxury feel.

Blind Embossing
Press your design directly into the corrugated material without using ink. This creates a subtle, tactile effect that customers can feel when handling the exterior of the box.

Die-Cut Display Windows
Add precise cutouts to the top lid of your mailer. This allows customers to see the contents inside before opening the package, making it an excellent option for retail shelves or gift sets.

Custom Brand Stickers
Seal the front tuck closure of your mailer boxes with branded adhesive labels. It provides tamper evidence during shipping while reinforcing your brand logo upon delivery.
From Idea to Impact
Get your custom packaging in 4 easy steps.
Configure Your Box Specs
Select the exact dimensions, flute thickness, and printing method for your mailer boxes. Then, upload your dieline artwork directly to our platform.
Review the Digital Proof
Our team provides a detailed 3D digital proof of your custom mailer. Review the design layout, verify the folding structure, and approve the file for production.
Begin Manufacturing
Once approved, your order moves to production. The corrugated board is precisely printed, die-cut, and scored to match your custom specifications.
Receive Flat-Packed Delivery
Your custom mailer boxes are safely bundled and shipped flat to your facility, keeping your inbound freight costs low and saving warehouse storage space.
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Frequently Asked Questions
Not sure what you need?
Our AI Packaging Consultant can analyze your product and recommend the perfect specs in seconds.

Mailer Boxes
Custom Mailer Boxes
The #1 e-commerce box. Fully printable inside and out. Roll-end tuck top or tab lock styles.

Mailer Boxes
Kraft Mailer Boxes
Unbleached kraft mailer boxes. The natural brown look that says eco-friendly without saying a word.

Mailer Boxes
White Mailer Boxes
Bright white mailer boxes that make your printed design look its best. The go-to canvas for brands.

Mailer Boxes
Black Mailer Boxes
Matte or gloss black exterior for a luxury unboxing moment. Custom print on white interior available.

Mailer Boxes
Colored Mailer Boxes
Mailer boxes in any Pantone color. Match your brand exactly with custom PMS ink.

Mailer Boxes
Printed Mailer Boxes
Full-wrap printed mailers with your artwork covering every surface. CMYK or Pantone options.

Mailer Boxes
Interior Print Mailer Boxes
Custom print on the inside flaps for a surprising unboxing reveal. Your brand story, inside and out.

Mailer Boxes
Tab Lock Mailer Boxes
Tab-and-slot closure that snaps shut without tape. Clean opening experience for e-commerce brands.