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Snap Lock Bottom
Strong, Practical, and Retail-Ready
Custom Snap Lock Bottom Boxes?
Click. Lock. Done.
Tuck top snap lock bottom boxes, also known as “crash lock” bottom boxes, are folding cartons with a floor formed by interlocking bottom panels during assembly. The tuck panels lock together to create a sturdy floor for the box without the need for glue. Unlike the pre-glued base of an auto lock bottom box, this style takes a few extra seconds to set up—but it’s more economical to manufacture and still provides dependable support for many products.
A Cost-Saving Alternative to Auto Lock Bottom Boxes
Snap lock bottoms are a good choice when you want more strength than a standard tuck end box but at a lower cost than an auto lock bottom. The difference in price comes from the extra manufacturing step needed to glue the base of the auto lock version. Snap lock bottoms work well for light to moderately heavy products, and they sit flat and stable on retail shelves.
...And the "Crash"?
A crash lock box gets its name from how the bottom panels lock together to form the bottom of the box.
The side and back bottom panels fold inward and interlock in a woven pattern. Then the front panel (the "tongue") folds down over this base, and is pushed down until it "crashes" through the interlocked weave and into the inside of the box, which locks the floor in place. Don't worry - it's much easier than it sounds.
Why Choose Snap Lock Bottom Boxes?
When you need more than a tuck-end carton—especially for larger length × width footprints—snap-lock bottoms deliver stronger support without the cost of a glued auto-lock base.
Benefits
Snap lock bottom boxes fill the gap between tuck end and auto lock cartons—stronger than a tuck end, but more economical than an auto lock bottom.
Provides better weight support than standard tuck end packaging
Lower manufacturing cost compared to auto lock bottom boxes
Secure interlocking base requires no glue or tape
Flat, stable bottom ideal for retail shelves
Ships and stores flat to save warehouse space
Holds light to moderately heavy products
With packaging inserts and partitions, makes great kit boxes
Custom Options:
Just like its beefier auto lock bottom brother, the snap lock can be equipped with the same features that make packaging easier to 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 reliable quality control
Custom-Only Focus: Every box is made to your product’s unique specs
Retail-Ready Design: Crafted for both shelf appeal and functional strength
Sustainable Options: Recyclable and eco-conscious materials available
Frequently Asked Questions
Are Snap Lock Bottom Boxes Strong Enough for Heavy Items?
They are ideal for light to moderate weight products. For heavier products, we can discuss reinforced structures or inserts.
Do These Boxes Require Glue or Tape?
No. The interlocking flaps create a secure bottom without adhesive.
Can I Get Custom Inserts for Extra Protection?
Yes. We can create paperboard or foam inserts to keep products stable and protected.
Are Snap Lock Bottom Boxes Recyclable?
Yes. All of our paperboard boxes are recyclable, and sustainable stock options are available.