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Auto Lock Bottom
Pop. Lock. Load.
Custom Auto Lock Bottom Boxes
Pop. Lock. Load.
Auto lock bottom boxes are folding cartons with a pre-glued bottom that’s sealed during manufacturing, creating a strong base and quick setup. Just squeeze the corners and the box squares up with a satisfying click—no bottom tuck to deal with.
On fast-paced fulfillment lines, eliminating that step saves valuable time and cost, and this style works with many automatic packaging machines.
Strength for Heavier Products
The reinforced, glued base can hold more weight than standard tuck end boxes, so there’s no risk of the bottom popping open. This strength makes them ideal for heavier retail products like glass jars, bottles, electronics, cosmetics, and other premium packaged goods.
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Auto Lock Bottom
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✔️Easy Way to Measure
✔️ Paper Thicknesses
✔️ Types of Print Finishes
Style of box
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Chat with us - Use the chat bubble at the bottom right
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Call us (800) 555-1778
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Email us - quotes@boxcoop.com
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✔️ Choose Your Box Style
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Style
Size:
Length
Width
Depth
Height
Options:
UV
Hang Tab
Window
Volume
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18pt total costs
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18pt cost/box
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24pt total costs
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24pt cost/box
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How Did We Come Up With These Costs?
Our Custom Product Box Costs Explained shows exactly what goes into your quote—and how to make the most of your product packaging budget.
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Paper Thickness
Print Finishes
Measure
Reading a Ruler
Paperboard Thickness Chart
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What's a Good Paper Thickness for My Box?
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16pt (0.016″ ≈ slightly thicker than a business card)
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Best for very small product boxes.
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Rule of thumb: footprint (floor of the box) of about 1″ × 1″ or smaller.
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18pt (0.018″ ≈ just under credit-card thickness)
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Strong enough for most cosmetics, food, and shelf packaging.
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Cost-effective and versatile — the “everyday” choice for custom boxes.
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Rule of thumb: footprint of about 2.75″ × 2.75″ or smaller.
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24pt (0.024″ ≈ credit-card thickness)
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Stiffer and more rigid, with a premium feel in hand.
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Ideal for larger, heavier, or higher-end products where strength and presentation matter.
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Rule of thumb: footprint of about 3″ × 3″ or larger.
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Cardstock.... or Paperboard?
The paper behind your packaging matters
You may have seen box specs like “18pt cardstock” online — but not all 18pt paper is created equal.
• Cardstock: A thick paper used for crafts, postcards, and invitations. It’s cheaper and technically works for light packaging — but it lacks the stiffness and durability needed for most product boxes.
• Paperboard: A stiffer material engineered specifically for packaging. It folds cleanly, glues reliably, and holds its shape to protect your product — and your brand — on the shelf.
The key is knowing what you’re buying. In retail, your product box is what closes the sale — so it needs to perform and look its best. That’s why we use a quality paperboard — so your packaging doesn’t just hold together, it helps sell what’s inside.
Easy Assembly and Added Security
Assembly is simple: squeeze the sides to pop open and lock the base, add your product, then close the tuck top. No taping or extra fastening is required.
The quick setup saves time, while the secure base keeps products protected from packing through retail display. For added security, postal locks can be added to the tuck top lid to keep it securely closed.
Why choose auto lock bottom boxes?
They combine speed, strength, and reliability—making them one of the best options when you need a printed carton that handles heavier loads while still looking good on a retail shelf.
Benefits
With a glued bottom, this carton holds heavier products than tuck end packaging
Fast setup – just squeeze the corners and the box pops into shape
Works with many automatic packaging and fulfillment lines
Sits flat on a retail shelf
Custom Options
Already the folding carton heavy lifter, auto lock bottoms can be fine-tuned with practical features for retail use.
Tuck top lids available in straight or reverse styles
Choice of closing panel locks: friction or slit locks
Postal locks on the tuck top lid for added security
Hang tabs for easy retail hanging
Half-moon thumb tabs for easier opening and re-closing
Built-in inside partitions or product inserts for multi-item packaging
Benefits of Working with The Box Co-op
Made in the USA: Faster lead times and full quality control
Custom-Only Focus: Every auto lock bottom box is tailored to your product
Retail and E-commerce Expertise: Designed to impress on shelves and protect in transit
Sustainable Options: Recyclable and eco-conscious materials available
Frequently Asked Questions
Are Auto Lock Bottom Boxes Stronger Than Standard Tuck Boxes?
Yes. The pre-glued base provides additional strength, making them suitable for moderate to heavier products.
Do Auto Lock Bottom Boxes Require Glue or Tape?
No. The base locks automatically during assembly, saving time and labor.
Can I Order Custom Inserts for Extra Product Security?
Absolutely. We can design die-cut or foam inserts for added stability and protection.
Are Auto Lock Bottom Boxes Recyclable?
Yes. All of our paperboard boxes are recyclable, with sustainable options available.