Flat Pack Boxes for Sale
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Flat pack boxes for sale in ready-stock sizes, shipping fast without a custom lead time for quick restocks and launches.
$0.74
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 |
Need boxes on hand this week, not next month? Crat Packaging keeps flat pack boxes for sale in popular stock sizes ready to ship immediately, so growing brands and busy fulfillment teams never run short waiting on custom tooling.
Ready-Stock Flat Pack Box Specifications
| Box Style | Auto-lock bottom or tuck-top, stock and custom dimensions |
| Material | Corrugated or kraft board, multiple flute options |
| Assembly | Tool-free fold-and-lock, ready to use on arrival |
| Best For | Quick restocks, seasonal spikes, new-product launches |
| Print Options | Plain stock, stock kraft, or custom print on request |
| Order Volume/MOQ | Ready-stock cases up to full pallet quantities |
| Shipping | Fast turnaround from US inventory, flat-nested freight |
Ready When You Need Them
Custom tooling takes time. When you can’t wait for a new die line, our in-stock flat pack sizes cover the most common dimensions so you can place an order and have boxes in hand quickly, without compromising on fold-and-lock strength.
Built for Fast-Moving Businesses
E-commerce sellers riding a sales spike, warehouses covering an unexpected shortage, and startups that haven’t finalized custom packaging yet all turn to ready-stock boxes to keep shipments moving.
Stock Sizes, Real Strength
Ready-to-ship doesn’t mean lower quality. These boxes use the same locking construction as our fully custom flat pack boxes, just in the sizes ordered most often.
Who Orders From Stock
Small businesses testing a new SKU, distributors covering a temporary gap, and seasonal sellers stocking up before a rush all benefit from having flat pack boxes for sale without a custom lead time attached.
Sustainable by Default
Our stock boxes are made from recyclable corrugated and kraft stock, and a 2025 McKinsey survey found that over 60% of U.S. consumers pick green packaging when they have the choice, so a fast order doesn’t mean an unsustainable one.
Print Options Without the Wait
Choose plain stock for the fastest turnaround, or add a simple stamp or label for light branding without a full custom print run.
Why Order From Crat Packaging
- Ready-stock sizes shipping without custom lead time
- Same locking construction as our custom boxes
- Scalable from single cases to full pallets
- US-based inventory for faster delivery
- Path to custom branding once volume justifies it
- Responsive support for urgent restock needs
How to Order
- Check available stock sizes against your product
- Confirm quantity needed and delivery timeline
- Place your order for immediate processing
- Receive flat-shipped boxes ready to fold
Frequently Asked Questions
How fast can I get these ready-stock boxes?
Stock sizes ship much faster than custom-tooled orders since there’s no die development involved.
How does this compare to flat pack boxes for posting?
Posting boxes are sized for individual mail; this stock-availability line covers any use case where speed matters more than a custom size.
Are stock boxes lower quality than custom ones?
No, they use the same fold-and-lock construction, just in commonly ordered dimensions.
Can I get these branded?
Light branding is available quickly, and full custom print is available for larger orders.
What’s the minimum order?
We work with single cases up to full pallet quantities depending on your need.
Do you keep multiple sizes in stock?
Yes, our most commonly ordered dimensions stay in ready inventory.
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