Extra Large Postal Boxes
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Extra large postal boxes sized for bulky, multi-item shipments with full-color branding and low minimums.
$0.32
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 |
Extra large postal boxes from Crat Packaging give oversized items a secure, professional home for shipping, giving bulky orders the same sturdy protection your smaller mailers get.
Extra Large Postal Boxes Specifications
| Box Style | Auto-lock bottom or tuck-top mailer, oversized dimensions |
| Material | E-flute or B-flute corrugated cardboard, 150-275 GSM |
| Assembly | Ships flat, tool-free auto-lock or tuck assembly |
| Best For | Bulky apparel, home goods, multi-item orders, subscription bundles |
| Print Options | Full-color CMYK offset or digital, matte or gloss lamination |
| Order Volume/MOQ | Low minimums with volume pricing tiers |
| Shipping | Flat-packed nationwide delivery, US production |
Built for Bigger Orders
When a standard mailer will not close, this oversized carton keeps bulky products from shifting or bursting through the seams in transit, handling apparel, kitchenware, and multi-item bundles without doubling up on cartons.
Who Orders Extra Large Postal Boxes
E-commerce brands shipping bundled orders, home goods sellers, apparel companies packing multiple garments, and subscription box businesses that outgrow standard mailer sizes all rely on this larger format to keep one shipment in one box.
Eco-Friendly Shipping Packaging
A 2025 McKinsey survey found that over 60% of U.S. consumers pick green packaging when they have the choice, and Crat Packaging builds every box from recyclable, FSC-sourced stock to match that demand.
Print and Finish Options
Add your logo, brand colors, and care instructions with full-color offset or digital printing, then finish with matte or gloss lamination for a polished unboxing moment that still protects the contents inside.
Why Order From Crat Packaging
- Free design support and unlimited digital proofs before production
- Low minimum order quantities, ideal for startups and established brands alike
- Full-color offset and digital printing with matte, gloss, or spot-UV finishes
- Recyclable, FSC-sourced Kraft and corrugated stock
- US-based production with fast turnaround and nationwide shipping
- Dedicated account support from quote through delivery
How to Order
- Share your box size, quantity, and design files (or ask our team for a template)
- Approve a free digital proof of your custom packaging
- We print and die-cut your order at our US facility
- Your boxes ship flat-packed straight to your door or warehouse
Frequently Asked Questions
What size range counts as extra large?
This format typically starts where standard mailer dimensions end, often 16 inches or longer on at least one side, and we custom-size every order to your exact product footprint.
Can these oversized mailers still ship at standard parcel rates?
In most cases yes, as long as the dimensional weight stays within carrier limits; our team can help you size the box to avoid oversize surcharges.
What material keeps large orders from crushing in transit?
We recommend B-flute or double-wall corrugated board for this oversized format carrying heavier or multi-item orders, giving you stronger stacking strength than single-wall stock.
Is custom branding available on this format?
Yes, every box can carry your logo, brand colors, and messaging in full-color print at no design fee.
What is the minimum order quantity?
We keep MOQs low so startups and growing brands can order without committing to warehouse-sized print runs.
How long does production take?
Most orders move from proof approval to your dock in a standard production window, with rush options available for time-sensitive launches.
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