Custom Auto-Bottom Boxes
Custom auto-bottom boxes (1-2-3 bottom) feature a pre-glued base that locks into place in one second — no tape, no glue, no assembly time. The strongest folding carton base style, supporting 3-5x more weight than standard tuck ends. Available in 1-2-3 lock, snap lock, and crash lock configurations for manual or automated packaging lines.
Auto-Bottom Box Types
1-2-3 Bottom (Auto-Lock)
Pre-glued bottom with 4 interlocking flaps. Press flat and the bottom locks into a sturdy base in one motion. The most popular auto-bottom style.
Snap Lock Bottom
Interlocking tabs snap together without glue. Slightly lower cost than 1-2-3 but equally sturdy. Great for lighter products.
Crash Lock Bottom
Machine-erectable bottom for high-speed packaging lines. The bottom crashes into locked position when the box is opened. Used for automated fulfillment.
Auto-Bottom with Tuck Top
Combines auto-lock base with tuck-end top closure. Best of both worlds — fast assembly with easy access for consumers.
Auto-Bottom Boxes FAQ
What is a 1-2-3 bottom box?
A 1-2-3 bottom box (also called auto-lock or auto-bottom) is a folding carton with a pre-glued base that assembles in one step: open the box flat and press — the four interlocking flaps lock into a sturdy bottom automatically. Named because assembly takes just 1-2-3 seconds. It is the strongest folding carton bottom style.
When should I choose auto-bottom over tuck end?
Choose auto-bottom when your product is heavy (over 200g), when you need fast packing speed, or when base strength is critical. Auto-bottom boxes support 3-5x more weight than tuck-end bases. They are standard for cosmetics, food, bottles, candles, and any product that could push through a simple tuck base.
Can auto-bottom boxes run on automatic cartoning machines?
Yes. Crash lock bottom variants are specifically designed for high-speed cartoning machines. We can match your machine specifications for fold dimensions and glue tab placement. Auto-lock 1-2-3 bottoms can also run on semi-automatic machines.
What is the cost difference vs tuck end boxes?
Auto-bottom boxes cost approximately 10-20% more than standard tuck end boxes at the same quantity due to the additional gluing step in manufacturing. However, the labor savings during packing (3-5x faster assembly) often offset the higher unit cost, especially at volume.
What sizes are available?
We manufacture auto-bottom boxes from 2×2×3 inches (small cosmetic) up to 12×10×8 inches (large retail). Custom sizes at no extra setup cost. Board weight ranges from 14pt to 24pt SBS depending on product weight requirements.
What is the MOQ for custom auto-bottom boxes?
Custom printed auto-bottom boxes start at 500 units. All orders include full-color offset printing, die-cutting, gluing, and free shipping. Structural design and 3D mockup included at no cost.