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.
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 |
Small Mailer Boxes from Crat Packaging use a self-locking mailer carton format, folding flat for storage and locking together without tape for fast, secure e-commerce packing at small item sizes.
Small Mailer Boxes Specifications
| Box Style | Self-locking folding mailer carton |
|---|---|
| Material | 32-44 ECT corrugated or 24pt SBS paperboard |
| Assembly | Flat-shipped, tool-free tuck-lock assembly |
| Best For | E-commerce shipping, small retail products, subscription boxes |
| Print Options | Full-color CMYK exterior and interior print |
| Order Volume (MOQ) | Starting at 100 units |
| Shipping | Flat-packed, nationwide US shipping |
The Self-Locking Mailer Format
What defines this line is the folding mailer construction: flaps that tuck and lock into place without tape, so a single box folds up in seconds and holds its shape through shipping. That is a distinct structure from a basic small shipping carton — see our broader Small Mailing Boxes line if you need a simpler carton format — and it is different again from packaging framed around postal-rate compliance, which is what Small Parcel Mailing Boxes addresses.
Common Uses
- Direct-to-consumer e-commerce shipping for small products.
- Subscription box companies needing a fast-fold, branded mailer.
- Retail-to-online brands shipping small orders from a warehouse.
- Sample and promotional mailers sent in bulk.
Material Options
Corrugated board for shipping durability, or SBS paperboard for a lighter, more premium unboxing feel when the box is also the retail presentation.
Sustainability
A 2025 McKinsey & Company survey found over 60% of U.S. consumers pick green packaging when they have the choice. Crat Packaging offers recyclable and FSC-certified board options so your small box program can back up its sustainability claims without adding cost or slowing production.
Who Buys This Wholesale
- E-commerce and DTC brands.
- Subscription box companies.
- Fulfillment centers packing for multiple brands.
- Retailers shipping small online orders.
Why Order From Crat Packaging
- Wholesale pricing that drops per-unit cost as order volume scales, with no hidden tooling markups.
- Free design support from an in-house team that builds print-ready dielines and mockups at no charge.
- Low MOQ production runs so you are not forced to buy a year of inventory to get custom print.
- Fast US delivery from domestic production and fulfillment, avoiding the long lead times of overseas-only suppliers.
- Tape-free self-locking construction that speeds up manual packing lines.
- Full interior print available for a branded unboxing moment.
How to Order
- Send us your box dimensions, material preference, and print requirements through our online form or by email.
- Our team returns a free digital proof so you can review the layout, colors, and structural design before anything is produced.
- Request an optional physical sample to check the material weight, fold quality, and print finish in hand.
- Approve the final proof and we move straight into production and shipping, with tracking sent once your order leaves the facility.
Frequently Asked Questions
Do these boxes need tape?
No, the self-locking tuck design holds without tape for standard use, though tape can be added for extra security in transit.
What is the difference between this and Small Mailing Boxes?
Small Mailer Boxes are specifically the self-locking folding mailer format; Small Mailing Boxes is a broader category that can include simpler carton styles.
Can I print inside the box?
Yes, interior print is a standard option for branded unboxing.
What material options are available?
Corrugated board for shipping durability or SBS paperboard for a lighter, retail-style finish.
What is the minimum order?
100 units minimum, with volume pricing at 500 and 1,000 units.
Are these suitable for fragile items?
Corrugated construction with optional interior padding suits moderately fragile items; very fragile products may need additional protective inserts.
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