Packaging design agencies: structural and surface are two jobs, and production decides both

A packaging design agency designs the pack and everything printed on it: the format and the dieline, the brand and the information hierarchy on the panels, and the production files a printer can run. The work splits into two halves, often two suppliers. Structural design decides the box, bottle, pouch or closure, and how it survives a filling line and a courier. Surface design, which is what most people mean by packaging design, decides what the pack says and how it looks. Ask every studio on your shortlist which half it does in house, because a pack approved on a screen can still fail on the press, on the shelf and in a retailer's app, and the cause is nearly always a production or legal constraint nobody raised early enough.

That is what separates this from the rest of brand design. A pack has to fit a tolerance, survive a drop test, carry the words the law requires, and read at a metre and at two hundred pixels.

Structural and surface, and why the order matters

• Structural design. Format, materials, closure, pack sizes, the dieline or CAD drawing, how the pack palletises, and the drop and compression testing that proves it travels. Usually a packaging engineer, a structural specialist, or the design team inside the convertor who will make it.
• Surface or graphic design. Brand expression, the hierarchy of information on each panel, variant architecture across a range, artwork and the colour specification. This is what most firms calling themselves a packaging design agency sell.
• Artwork adaptation, a third supplier in all but name. Rolling the approved design across every size, variant and language, and preparing separations for each print process. Priced per item, and the line that grows quietly, so quote it separately.

Settle the structure first. The format decides the printable area, the panel proportions and the space lost to a seal or a glue flap, so a surface design drawn before the dieline exists gets drawn twice.

The production facts that decide the design

Get the convertor's specification before concept work starts. A printer will send a dieline, a colour capability note and a tolerance sheet, and a studio that asks for all three before it draws is the one that will not cost you a reprint.

Constraint	What it changes
Substrate	Uncoated board, coated board, corrugated, film, glass, aluminium and HDPE each take ink differently. A brand colour does not come out the same on kraft as on coated white.
Print method	Litho laminated onto corrugated, flexo direct to corrugated, digital, gravure or flexo on film, screen or foil on glass. Each has its own minimum line weight, tolerance and setup cost.
Colour count	Spot colours matched to a standard hold a brand colour steady across runs and cost a plate or cylinder each. Process colour is cheaper and does not reach some brand colours. Every extra spot, varnish and foil is another unit on the press and another line on the quote.
Registration	Hairline rules, small reversed out type and tight borders are what move on a flexo corrugated job. Design to the tolerance you were given.
Dieline and safe area	Bleed, glue flaps, seals, and panel space lost to a tamper band or a shrink sleeve seam.
Finishing and the line	Soft touch lamination, debossing, and a sleeve that has to pass through an applicator at speed. The filling line sets limits the design respects.

This is written for a brand owner commissioning a pack for US retail and ecommerce. A regulated category such as drugs, supplements or alcohol adds a review step with its own specialists, and transit packaging for an ecommerce only product is a different brief where the courier's rules matter more than the shelf.

The content the law puts on the pack, and who is liable for it

Mandatory content takes space off the front of pack before brand work begins, which is why it belongs in the first layout rather than the last. In the United States a consumer pack generally has to state what the product is, the net quantity of contents, and the name and place of business of the manufacturer, packer or distributor, under the Fair Packaging and Labeling Act. Food carries a Nutrition Facts panel and the major allergen declarations under Food and Drug Administration rules. Type size minimums for several of those statements are set against the size of the principal display panel, so a smaller pack gives up proportionally more of its face.

Environmental wording is advertising, not decoration. Recyclable, compostable and recycled content claims are judged as claims, with the Federal Trade Commission's Green Guides as the US reference point, and several states set their own recyclability wording rules. Keep every symbol and green claim with the regulatory reviewer rather than the designer.

Liability sits with the company whose name is on the pack. A design agency produces artwork to a specification; it does not approve a claim. So name the person on your side who signs off the regulated content, or buy regulatory review as an explicit line item, and put whichever you choose in writing. Getting it wrong is not a redesign, it is a print run and sometimes a recall.

What the shelf and the thumbnail do to a design that looked fine on a screen

• Print it and build it. Flat artwork at 400 per cent on a monitor is the least representative view of a pack there is. Make a mock up at size, in the real substrate.
• At a metre. Stand it up and ask somebody who has not seen it what the product is and who makes it. Two seconds is what it gets.
• In a block. Put six facings beside the competitor set. A pack that is handsome alone and invisible in a block of twelve has failed.
• At thumbnail. Render it at the size a retailer's app shows it, a couple of hundred pixels on the long edge, and check the name, the variant and the size are still readable. For a brand with real online grocery or marketplace sales this is the first view of the pack, and variant confusion here comes back as returns.
• In the light it will live in. Store lighting, and behind glass in a chiller if that is where it sits. Condensation and laminate glare change what the colour does.

The brief, and the deliverables that are specific to packaging

Give every studio the same brief: the item list with sizes and variants, the convertor and printer if chosen, the dieline, the markets, who owns the regulated content, the range architecture, the number of concept routes, and the artwork adaptation count. Deliverables, rights and file ownership are the same contract conversation as any brand project, and our pages on brand identity agencies and on choosing a brand design company set those out. The additions specific to a pack are the native structural files and dielines, a colour specification per substrate and print process, artwork masters for every item, and whether the studio attends the press run and signs the press pass that becomes your colour standard.

Questions that come up when hiring a packaging design studio

What does a packaging design agency deliver?

Concepts, an approved design, then print ready artwork per item with a dieline, a colour specification and the separations the print process needs. Where structure is in scope, add the format drawing, the material specification and the test results.

Do I need a structural designer as well?

If the format exists and only the printing is changing, no. If the shape, the closure, the pack size or the material is changing, yes, and that work comes first because it sets the canvas everything else is drawn on.

How is packaging design priced?

Per project, driven by three things: the number of concept routes, the number of items the design is adapted to, and whether structural work is included. Ask for the per item adaptation rate separately, because on a range of thirty products that line can exceed the design fee.

Can our branding agency do the packaging?

Many do the surface work well. Ask who draws to a dieline, who writes the colour specification per substrate, and who has stood next to a press. Where the answer is nobody, keep them on the identity and bring in a packaging studio for production.

Who signs off that the pack is legal?

Your business does, because the name on the pack carries the liability. Name that person before concepts begin, and if the agency is to manage regulatory review, buy it as a stated deliverable with the reviewer named.

When the shopper stops turning the pack over

The back panel exists because somebody picks the product up and turns it over. Those questions now get answered before anyone reaches the shelf: is this gluten free, is the carton recyclable, which size fits a standard cupboard. What answers them is text, and a pack is not text. So a retailer listing or your own product page supplies the words, and a reviewed panel whose wording never reached the website is a panel that does not count. One line in the approval process fixes that: whoever signs off the regulated content and the claims also publishes the wording, verbatim, on the product page. The two then cannot drift, and what a shopper is read back matches what is on the pack. AI Knows Us sits on that last step, putting the questions a shopper asks to the assistants and showing which answer comes back: aiknowsus.com.