Custom Auto Lock Bottom Boxes
Crash-lock bottoms snap into place, cutting packing time and carrying heavier products safely.
- Pre-glued base snaps open
- Carries heavier products
- Speeds up packing
In short
Auto lock bottom boxes are folding cartons with a pre-glued base that snaps into place when the box is opened, giving a strong bottom with no assembly. Box Sense makes them from 10 boxes, with production in 8–12 business days after proof approval. Shipping is free to any address in the USA.
About our auto lock bottom boxes
When a product is too heavy for a tuck flap, or packing speed matters, the auto lock bottom (also called crash lock) is the answer. The base is glued at our facility; your team just pops the box open and fills it. Candles, jars, bottles and supplement tubs all ship in them.
We make auto lock boxes to your product's size and weight, with a tuck top, printed in full color, from 10 boxes.
Auto lock options
Choosing the board
| Board | Best for | Notes |
|---|---|---|
| SBS paperboard, 18 to 24 pt | Jars, bottles and candles | Stiff enough for the locking base |
| Kraft paperboard | Natural and eco brands | Brown fiber look; dark inks or white ink |
| E-flute corrugated | Heavier products and shipping | Thin corrugated with a smooth print face |
What affects the price of auto lock bottom boxes
Every box is made to order, so each order is quoted individually. These are the things that move the price most, in order:
- Gluing. The pre-glued base adds a gluing step compared with a tuck carton.
- Board. Heavier products need thicker board or E-flute.
- Finishes and windows. Each adds a step.
- Quantity. The unit price falls steeply as quantity rises.
Send your size, quantity and artwork through the quick quote form for a firm price within 24 hours.
Why choose an auto lock bottom
- Carries more weight than a tuck or snap-lock base
- Opens and sets up in a second, which speeds up packing
- Ships flat like any carton
- The base stays closed without tape
Auto lock or snap lock?
A snap-lock (1-2-3) bottom is folded together by hand from four flaps; it is cheaper to make but slower to assemble. An auto lock bottom is pre-glued and sets up instantly. For more than a few hundred boxes, the packing time saved usually outweighs the small extra cost.
How ordering works
- Send your specs. Product size, quantity and artwork (or just a logo). A packaging specialist replies with a firm quote within 24 hours.
- Approve the proof. We send a dieline and a 3D proof so you can see the box before it is made.
- Production. 8–12 business days in our own facility, or 5 days on rush.
- Delivery. Boxes ship flat to you anywhere in the USA, free of charge.
Frequently asked questions
How much weight can an auto lock bottom box hold?+
It depends on board and size; paperboard versions commonly carry a few pounds, and corrugated versions more. Tell us the product weight and we specify the board.
Do auto lock boxes ship flat?+
Yes. They arrive flat and pop open ready to fill.
Is it more expensive than a tuck box?+
Slightly, because of the gluing, but it saves packing time and is stronger.
What is the minimum order?+
10 boxes.
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Let's build your auto lock bottom boxes.
Tell us what you are packing. You will have a quote, a free dieline and a sample plan within 24 hours.