The question behind most pet treat carton briefs is really a volume question. You know the net weight you want to sell, and you need a box that holds it without looking half empty on shelf. Piece dimensions will not get you there, because treats are irregular and they pack at wildly different densities.
Work out the volume before you draw the box
Fill a container of known volume with your actual product, pouring it the way the filling line will, then weigh it. That gives you bulk density. Divide your intended net fill weight by the bulk density and you have the volume the carton must hold. Then add headspace so the product settles below the top rather than jamming the closure. How much headspace depends entirely on your treat, so run it and measure it rather than taking a rule of thumb from a supplier.
| Step | How to capture it | Units to record |
|---|---|---|
| Bulk density | Weigh a container of known volume, filled as the line fills it | g per litre, or oz per cubic inch |
| Required fill volume | Net fill weight divided by bulk density | litres or cubic inches |
| Settled headspace | Run a real fill, close it, transport it, then look | Depth in mm or inches above the settled product |
| Carton internal size | Fill volume plus headspace, shaped to your shelf facing | Internal length x width x depth |
The last row is where shape enters. The same volume can be a tall narrow carton or a wide flat one, and the shelf facing you have been given usually decides which.
Bag in box, or lined carton
Most treats with any fat content need a barrier between the product and the board. A gusseted bag inside a printed carton is the common route: the bag handles the barrier and the reseal, the carton handles the structure and the print. A lined or coated carton is cheaper and works for dry, low-fat products, but it gives you no reseal. Decide this early, because a bag adds thickness and forces the carton internal dimension up.
Label space is a dimension too
Pet food and treat labelling in the US sits under state feed laws that largely follow the AAFCO model regulations, alongside federal requirements. The practical effect on packaging is that a defined block of mandatory information has to fit legibly on specific panels. Get that block from your regulatory advisor, lay it out first, and design the brand around what is left. Retro-fitting a guaranteed analysis panel onto finished artwork is how carton redesigns happen twice.
Shipping and the master carton
Treats are heavy for their volume, so the case pack is usually limited by weight before it is limited by size. Ask your 3PL or retailer for their maximum carton weight and settle the case count against it. Our guide to what a master carton is covers the marks, the barcode format and the pallet arithmetic.
Minimum, price basis and turnaround
Minimum order is 100 boxes, from about $0.48 per unit at bulk volumes, confirmed on your written quote. Die and plates, design support, US shipping and a digital proof before anything prints are included. We quote three lanes: Rush (expedited production plus air freight), Standard (air) and Cost saver (sea), from about 7 business days, plus 2 to 5 for delivery, with specialty imported items running up to about 12 weeks. Rush carries a premium of about 7 to 25%, depending on the job. Production runs at West Chicago in the US and Guangzhou in China.
Send your net fill weight, a bulk density reading and the shelf facing you have been allocated, and we will size the carton and the case against it at /quote/. For the wider category, see pet food boxes.
