Custom packaging · buyer guide

Custom packaging dieline and RFQ guide

Give every packaging supplier the same structure, artwork, material and packing brief so quotes can be compared without hidden assumptions.

Reviewed 2 September 2026Scope: boxes, mailers, cartons and inserts

1. Start with the packed product

Measure the product and any protection it needs before selecting a box style. Record length, width, height, weight, fragile points and how the product will be placed or removed.

A product photo cannot replace a dieline. Keep the approved dieline revision and a finished-size drawing with the RFQ so artwork and structure stay aligned.

2. Specify board, paper and finish

Ask a paper box packaging manufacturer or custom printed packaging supplier to state the substrate and process, not just “premium” or “eco”.

  1. Board or paper type, thickness or GSM, recycled content and colour.
  2. Print method, CMYK/Pantone references, inside/outside print and colour-proof method.
  3. Finish such as matte or gloss lamination, soft touch, aqueous coating, foil stamping, embossing or spot UV.
  4. Adhesive, magnet, ribbon, window film and any food/cosmetic-contact or compliance restriction.
  5. Insert material: paperboard, molded pulp, EVA, PET or foam, with load and protection requirement.

For a branded packaging supplier, separate artwork ownership and logo-use instructions from the manufacturing specification. Only approved artwork should move to a production proof.

3. Build a comparable print quote

For folding carton printing, custom e-commerce mailer or a rigid gift box, request the same quote fields from every route.

Reference prices are not fixed offers. Structure, material, artwork, quantity and current capacity must be confirmed before a final commercial quote.

4. Approve the dieline and evidence trail

Keep the dieline revision, artwork file, colour proof, approved sample photos, packing diagram and supplier response under one stable SKU. This prevents an insert or finish from one box being reused for another.

Browse the custom packaging catalog, use the buyer specification resources, and send the completed brief through the RFQ route. For supplier checks, see qualification evidence.

Frequently asked questions

What should a packaging RFQ include?

Include product dimensions, structure, dieline or drawing, material, print, finish, insert, quantity, artwork, packing and destination.

Can a supplier quote before artwork is ready?

A budgetary route may be possible, but structure, print area, finish and sample method should be confirmed before treating the quote as final.

How do I compare two packaging suppliers?

Normalize the same board, size, artwork, finish, insert, quantity, tooling, packing and delivery assumptions, then record any substitution as an alternative.