What Is a Dieline? Packaging Dielines for Non-Designers
A packaging dieline is the flat template showing where a box or bag is cut, folded and glued. Learn the cut, crease, bleed and safe-zone lines and what to send if you do not have one.
A dieline is the flat, unfolded template that tells a packaging factory where to cut, fold and glue a box, bag or pouch. Think of it as the packaging equivalent of a sewing pattern: before the box is assembled, it starts as one flat die-cut sheet, and the dieline marks every edge and fold on that sheet. The designer usually draws it in Adobe Illustrator as outlined paths, and the factory uses it both to make the cutting die and to position your printed artwork.
What the lines on a dieline mean
A dieline is read by line style rather than colour — the factory follows stroke conventions, so a file should keep these as separate, clearly labelled layers.
| Line | What it marks | Notes for artwork |
|---|---|---|
| Cut line | Where the blade cuts through the board | Solid outline of the final flat shape |
| Crease / score line | Where the board is folded | Dashed or dotted line; no ink should sit on a fold |
| Bleed | Extra artwork beyond the cut edge | Usually 3 mm; stops white edges if the cut shifts |
| Safe zone | Inner margin keeping content away from cuts and folds | Often 3–5 mm; keep logos and text inside it |
| Glue tab | Flap bonded during assembly | Must be left clear of important artwork |
| Perforation | Tear or partial-cut line | Used on hang tabs, tear strips and coupons |
Conventions vary slightly between suppliers; always confirm their template before finalising artwork.
Who creates the dieline
For a standard format — a mailer, a drawer box or a folding carton in a common size — the supplier normally provides a ready-made dieline template at no cost, because the cutting die already exists. You simply drop your logo and graphics into it. A fully custom size or structure needs a new dieline, drawn by a structural packaging designer or the factory's technical team, and a one-time cutting-die fee applies. This is why custom-sized packaging typically starts around 500 pieces while stock formats can be branded from 50–100.
What if you do not have a dieline
You do not need to be a designer to start. Most buyers never draw one. Send the product you want to package, or simply its length, width and height, and a supplier will recommend the closest stock format or create a dieline for your custom dimensions. A white sample made from that dieline is produced before any tooling is committed, so you can check the fit and folds on the real item.
No dieline yet?
Send your product dimensions, a photo or a reference sample and we will supply the dieline template, MOQ and a quote. A white sample follows in about 5–7 days.
Request a dieline and quoteFrequently asked questions
What is the difference between a dieline and a die-cut?
A dieline is the digital template file showing the cut, fold and glue positions. A die-cut is the physical cutting form made from that template, or the process of cutting the flat sheet with it. The dieline comes first; the die-cut is produced from it.
Do I need to provide my own dieline?
Usually not for standard sizes. The supplier provides an existing template for stock formats, and only a fully custom structure needs a new dieline, which the factory or a structural designer can create from your product dimensions.
What file format should a dieline be?
A vector file such as Adobe Illustrator (.ai) with outlined fonts and separate layers for cut, crease and artwork is preferred. Vector paths scale without losing accuracy; a flat JPG or PNG cannot reliably drive a cutting die.
Why does artwork need bleed and a safe zone?
Cutting can shift by a millimetre or two in production. Bleed extends artwork past the cut so a slight shift never leaves a white edge, while the safe zone keeps logos and text far enough inward that they are never clipped or bent over a fold.
Can a dieline be reused for different products?
Only if the products share the same dimensions and structure. The same box format can be reprinted with new artwork at low MOQ, but a change in size or closure changes the folds and cutting die, so a new dieline is required.
Need these boxes, bags or ribbon?
Send your product dimensions or dieline and get a quote with MOQ and sample lead time within one business day.