Glossary
Die-cut boxes
Definition
Boxes cut and creased from board using a shaped die, producing a precise flat blank that folds into shape without tape, glue or extra assembly.
Also known as: Die cut boxes, Mailer boxes, Roll-end boxes
Die-cut boxes are made by pressing corrugated board through a custom cutting die, like a pastry cutter, that stamps out the exact shape and adds fold creases in one pass. The result is a flat blank that folds up into a finished box quickly and consistently, often with tuck-in flaps that need no tape.
This approach suits e-commerce postal boxes and mailer boxes where fit, finish and speed matter. A tight, custom die means the box hugs the product, cutting void fill and helping keep slim items within Royal Mail Large Letter limits. Clean creases and self-locking flaps also give a tidier unboxing experience.
Die-cutting is ideal for bespoke shapes and higher volumes, since the die is a one-off tooling cost spread across the run. For simple square cartons in standard sizes, stock slotted boxes may be cheaper; die-cut comes into its own when you want a precise, branded, tape-free postal box.
What to check
- Size the die so the box hugs contents and cuts void fill.
- For slim items, design to stay within Large Letter limits.
- Weigh one-off tooling cost against the run volume.
- Choose a board and flute that fold cleanly without cracking.
- Decide if self-locking flaps or tape sealing suits your dispatch.
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Die-cut boxes — FAQs
What is the advantage of a die-cut box over a standard carton?
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