Beverage Carton Case Study: What We Changed After the First Sample

Four cans. One paper carton. Sounds pretty straightforward.

That was the starting point for a recent project with a growing beverage brand: create a fully enclosed retail carton for four 12 oz sleek cans, packed in a 2 × 2 arrangement.

We worked out the structure, made the first sample, checked the size—and everything seemed to be moving in the right direction.

Then we put real cans inside.

And that changed the conversation.

The First Sample Looked Fine. The Weight Told Us Otherwise.

Looking at an empty carton only tells you so much.

Once four filled cans go inside, the carton has a very different job to do. So instead of approving the first structural sample based on appearance alone, we tested it with real beverage cans of a similar size and weight to get closer to the actual packed condition.

That simple check exposed something important: the first version didn't give us enough confidence in the support for the intended load.

So we stopped there.

No rushing into production. No “it should probably be fine.”

The sample had done exactly what a sample is supposed to do: show us what needed to change while there was still time to change it.

So, What Did We Change?

We went back to the packaging rather than trying to force the first version forward.

The material and structural approach were reviewed, and the revised solution used an auto-lock bottom as part of the updated carton design.

This wasn't because an auto-lock bottom is automatically the “best” choice for every beverage carton. Packaging structures don't work like that.

It made sense for this project—considering the four-can configuration, the way the carton would be formed and packed, and the support we wanted from the revised structure.

The carton could still be shipped flat and opened into shape when needed, which also suited the project's packing workflow.

Round Two: Back to the Cans.

After the adjustment, we made another version and checked the structure again with beverage cans inside.

This second round wasn't about making the sample look prettier. It was about answering a much more useful question:

Would we feel comfortable moving this structure one step closer to production?

That's a small difference in wording, but an important one.

Packaging sampling isn't just a preview of the finished print. It's part of the decision-making process.

The Part We'd Remember From This Project

It wasn't the final box.

It was the moment the first sample told us, “Not yet.”

For a growing brand, it can be tempting to see another sampling round as a delay. But fixing a structural concern at this stage is a very different problem from discovering it after 2,500 printed cartons have already been produced.

That's why we'd take one more sample over one avoidable production headache.

Planning Your Own Beverage Carton?

If you're still deciding on the structure, material or dimensions, start with our guide to specifying a folding carton.

You can also explore our custom paper box packaging options.

And if you already have your can dimensions, quantity and a reference idea, send them to us. We can help you work through the packaging before you commit to production.

Discuss Your Packaging Project →