Crat Packaging

Free Design Support | Free Shipping | Fast Turnaround Time

7 to 15-BUSINESS DAYS
Free Design Support
Best and Competitive Pricing
HIGH QUALITY OFFSET PRINTING
LOW MINIMUMS ORDERS
Create Your Perfect Box with
UNLIMITED CUSTOMIZATION OPTIONS
Offset Printing
Offset Printing

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

Digital Print
Digital Printing

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

Screen Printing Machine
Screen Printing

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

UV Printing
UV Printing

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

Water base Ink
Water-based Inks

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

fluorescent color ink
Fluorescent Inks

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

Pantone
Pantone

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

Panton Colors
Pantone Metallic

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

1 Side Coated Card
SBS C1S

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

2 Side Coated Card
SBS C2S

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

textured paper
Textured

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

Gold Metallic Paper
Metallic Paper

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

white kraft
White Kraft

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

Brown Kraft
Natural Brown Kraft

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

Black Kraft
Black Kraft

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

Grey Chipboard
Grey Chipboard

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

holographic paper
Holographic

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

White Duplex Board
White Duplex Chipboard

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

Gloss Lamination
Gloss Lamination

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

Matte Lamination
Matte Lamination

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

Soft Touch Lamination
Soft Touch Lamination

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

spot gloss uv
Spot UV

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

Varnish
Varnish

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

uv printing
UV Coating

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

Embossing on Box
Embossing

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

Debossing on box
Debossing

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

Gold Foil Boxes
Hot Foil Stamping

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

Window Patching
Window Patching

Craft a die-cut shape with a plastic film layer, revealing a window to showcase the product inside.

How does the process work
Getting to Know the Process in Crat Packaging
Get a Free Quote

Get a free quote for any custom box right now, no matter how challenging. 

play favicon
Add-Ons & Material Selection

We recommend the ideal material and add-ons like lamination, foiling, embossing UV, etc.

play favicon
Artwork Design For Print

Get Free Design Support with your box 3d Renders or Send Your Design File for Printing.

play favicon
Effortless Printing & Shipping

Upon design approval, we’ll print and conduct quality checks before shipping the boxes to you.

Technical Specifications

DimensionsAvailable in Custom Sizes
PrintingCMYK, Pantone Color, Full Color & No Printing
Paper StockEco-Friendly Kraft, Corrugated Cardboard & Premium Rigid Stock
CoatingSemi-Gloss AQ, Gloss UV, Matte UV & Spot UV
Default ProcessDie Cutting, Gluing, Scoring, Perforating
Custom OptionsWindow Cut Out, Gold/Silver Foiling, Embossing, Raised Ink
ProofDigital Proof, 3D Mock-Up
ShippingShipped FLAT (Free Shipping Across USA & Canada)
HelpFor further inquiries and Quotes, contact us or email at sales@cratpackaging.com
Learn More About Custom Size Mailing Boxes

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

  1. Send us your product’s exact length, width, and height.
  2. Get free design support to confirm sizing and structure.
  3. Approve your proof.
  4. Production runs 10-15 business days (8 expedited).
  5. 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.

Get a Quote

Shop with Confidence

Money Back Guarantee Icon
Payment

Related Products

Custom size mailing boxes self-locking
You're viewing: Custom Size Mailing Boxes $0.93
Add to cart
Get a Quote

Fill out our quote request form and we will get back to you as soon as possible. Or email us at: sales@cratpackaging.com

Get a Quote