Bottom closure boxes use snap-lock, crash-lock or auto-lock bases that support heavier items. Auto-lock bottoms pop into place in seconds, speeding up packing while keeping products secure from the bottom up.
Bottom Closure Cartons (Auto-Lock and Snap-Lock)
Why the base matters
For heavier products such as bottles, jars, candles and multi-packs, a standard tuck bottom can open under weight. Bottom closure cartons use stronger bases that lock in place, so the product stays secure when the box is lifted from the shelf.
Base types
A 1-2-3 or snap-lock bottom folds in three steps without glue and is economical for medium weights. Auto-lock or crash-lock bottoms are pre-glued and pop into place as the box is opened, making them fast on packing lines. Full-flap and seal-end auto bottoms give the strongest base for heavy products.
Styles
Auto-bottom trays, auto-bottom boxes with display lids, handle bag-shape boxes and 4- and 6-pack bottle carriers all use these bases, combining strength with retail presentation.
Ordering
Tell us your product weight and dimensions and we will recommend a base. Orders start from [100] units.
Popular for
- Bottles
- Heavy items
- Retail
Frequently asked questions
What is an auto-lock bottom?
A pre-glued base that locks into place when the box is opened.
What is a 1-2-3 bottom?
A base that folds in three steps and locks without glue.
Which bottom is strongest?
Auto-lock and full-flap bottoms.
Are auto bottoms faster to pack?
Yes, they pop open in one motion.