Custom Size Mailing Boxes
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Protect your products and promote your brand with Custom Size Mailing Boxes, durable enough for shipping and stylish enough for unboxing. Free design support and fast turnaround available. Get your free quote today!
$0.93
UNLIMITED CUSTOMIZATION OPTIONS

A printing technique employing a plate to transfer designs onto paper. Ideal for extensive print jobs.

Plate-free digital printing transfers designs electronically, cost-effective for short runs.

Screen printing is a method using a mesh screen and stencil to transfer ink onto a substrate.

Quick-drying printing technique utilizing ultraviolet lights for ink curing, yielding a glossy finish.

Consisting of water-based pigments, Ensures top-notch color output with a 100% eco-friendly profile.

Fluorescent inks are vibrant, UV-reactive pigments that emit vivid colors under ultraviolet light.

Generate pure colors using specific ink formulas to consistently & precisely reproduce color in printing.

Produce metallic colors through precise ink formulations to replicate color in printing.

Premium bleached white paperboard, specially coated on one side to enhance printing & finishing.

Bleached white paperboard, coated on both sides to achieve superior printing quality and finishes.

Top-notch textured paper, perfect for adding a touch of style when wrapping up durable boxes.

A unique paper material showcasing a shiny or matte metallic laminated surface.

Bleached kraft paper crafted from a blend of new and recycled pulp, coated on both sides for optimal printing.

Kraft paper produced from a combination of new and recycled paper pulp, with coating on both sides for printing purposes.

Kraft paper dyed black, manufactured from a blend of new and recycled pulp, and coated on both sides for printing applications.

Crafted from recycled grey chipboard cardboard, also known as uncoated recycled paperboard, ideal for luxury rigid boxes.

Unique paper material showcasing a holographic laminated surface in either glossy or matte finish.

Grey chipboard, one-sided white cardboard with a smooth, printable surface, ideal for luxury rigid boxes.

Gloss lamination enhances visual appeal by applying a shiny finish, and protecting printed materials.

Matte lamination offers a non-reflective finish, providing elegant appearance to printed materials.

Made with a smooth lamination that feels like touching a peach, can choose between a satin or matte.

A UV coating is applied to a specific area and then cured using ultraviolet light to make it sturdy.

A transparent coating is applied using the CMYK printing technique, and it comes in gloss, satin, or matte.

A fast-drying coating that undergoes curing through ultraviolet light is offered in both gloss and matte.

In a printing method, dies are pressed onto the back of the material to create a raised motif.

A printing technique that involves pressing dies onto the front of the material to create a raised motif.

In foil relief printing, foil is transferred at high temperatures, often employing multiple colors.

Craft a die-cut shape with a plastic film layer, revealing a window to showcase the product inside.
Get a free quote for any custom box right now, no matter how challenging.
We recommend the ideal material and add-ons like lamination, foiling, embossing UV, etc.
Get Free Design Support with your box 3d Renders or Send Your Design File for Printing.
Upon design approval, we’ll print and conduct quality checks before shipping the boxes to you.
Technical Specifications
| Dimensions | Available in Custom Sizes |
| Printing | CMYK, Pantone Color, Full Color & No Printing |
| Paper Stock | Eco-Friendly Kraft, Corrugated Cardboard & Premium Rigid Stock |
| Coating | Semi-Gloss AQ, Gloss UV, Matte UV & Spot UV |
| Default Process | Die Cutting, Gluing, Scoring, Perforating |
| Custom Options | Window Cut Out, Gold/Silver Foiling, Embossing, Raised Ink |
| Proof | Digital Proof, 3D Mock-Up |
| Shipping | Shipped FLAT (Free Shipping Across USA & Canada) |
| Help | For further inquiries and Quotes, contact us or email at sales@cratpackaging.com |
Custom size mailing boxes are engineered around your exact product dimensions for direct-to-consumer and subscription shipments, cutting shipping cost and void-fill waste compared to a generic mailer size. Built as self-locking, tape-free mailer cartons, they combine shipping durability with retail-ready branding on the outside. Crat Packaging manufactures them at its own US facility with free design support and a 100-unit minimum.
Key Features
- Dimensions built to your exact product, minimizing void-fill and dimensional weight cost.
- Self-locking tuck construction, tape-free for fast fulfillment.
- Full-color CMYK/PMS printing on the exterior and optional interior.
- E-flute or B-flute corrugated board for shipping durability.
- Flat-pack shipping that saves warehouse space before use.
- Optional handle die-cut for easy carrying.
Specifications
| Feature | Details |
|---|---|
| Box Style | Self-locking mailer carton, custom sized |
| Material | E-flute or B-flute corrugated board |
| Sizes | Fully custom, built to your product’s exact dimensions |
| Printing | Full-color CMYK/PMS, direct print or litho-laminate |
| Finishing | Matte or gloss lamination on litho-laminated boxes |
| Add-ons | Interior print, handle die-cut, tear strip |
| Minimum Order | 100 units |
| Turnaround | 10-15 business days standard, 8 business days expedited |
| Setup / Plate Charges | Free |
Customization Options
Sizing
Send your product’s exact dimensions and we’ll engineer a mailer with the right clearance for a snug, protective fit.
Materials
E-flute suits lightweight parcels, and B-flute adds strength for heavier or multi-item shipments.
Printing & Finishes
Full-color exterior branding, with optional interior print for a branded unboxing moment.
Add-ons
Handles, tear strips, and interior print all add convenience without extra tooling cost.
Industries & Use Cases
Built for e-commerce brands, subscription-box services, and direct-to-consumer companies shipping products that don’t fit a standard mailer size.
How to Order
- Send us your product’s exact length, width, and height.
- Get free design support to confirm sizing and structure.
- Approve your proof.
- Production runs 10-15 business days (8 expedited).
- Boxes ship directly to your fulfillment center.
Why Wholesale Buyers Choose Crat Packaging
Made at our own US facility, with no setup, plate, or die charges, free design help, and a 100-unit minimum. Bulk pricing starts from around $0.75 per unit, depending on size, material, quantity, and finishing.
Frequently Asked Questions
How does custom sizing reduce shipping costs?
A mailer sized to your product reduces dimensional weight charges and the amount of void-fill needed to prevent movement.
What’s the minimum order quantity?
The minimum order is 100 units, with no setup or plate charges.
Do these mailers need tape to seal?
No, our self-locking tuck construction seals without tape for faster fulfillment.
Can you print my logo on the mailer?
Yes, full-color printing is available on the exterior, with interior print also available.
How long does production take?
Standard turnaround is 10-15 business days after proof approval, with 8-business-day expedited production available.
What material should I choose?
E-flute for lightweight items, B-flute for heavier or multi-item shipments.
Get a free quote for your custom size mailing boxes today.
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