Auto-lock (crash-lock) bottom carton
Illustrative diagram
Crash-lock / 123 bottom

Auto-lock (crash-lock) bottom carton

A folding carton with a pre-glued base that locks as it opens, for heavier products and faster packing.

  • Locks on opening
  • Carries heavier items
  • Tuck top

The auto-lock base carries bottles, jars and heavier boxed goods without the bottom flaps opening. A lighter alternative is the 1-2-3 (snap-lock) bottom, which is folded by hand and needs no extra gluing.

Style code
Crash-lock / 123 bottom
Best for
Bottles, jars, candles, food and beverage multipacks
Materials
Ivory / FBB 250–400 gsm, Duplex, C1S, kraft board
Printing & finishes
Offset CMYK + Pantone for volume; HP Indigo / digital for short runs; lamination, spot UV, hot foil, embossing, windows
Tooling
Cutting die + folder-gluer with crash-lock section
Assembly
Pop open; base locks itself
Typical minimum
Typically from about 1,000 pcs (offset); digital short runs on request
How to state a box size. Inside dimensions in mm: length × width × height. Length and width are the opening (length is the longer side); height is the depth. Example: 300 × 200 × 150 mm.

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