Updated October 2026
A big bag of kibble or a box of litter usually costs more to ship than anything else a pet brand sells. Box size, how the freight moves and where the stock sits all change what you pay.
Cat litter and kibble are heavy and take up a lot of room, so they make up much of a pet brand's shipping bill. These can potentially bring that cost down:
By The Fulfillment.com team
Bagged kibble and packaged cat litter account for most of the shipping spend in a typical pet catalog. Both are heavy, and both are big. Nothing else you stock costs as much to send to a far zone or to ship in a box that's too large.
A 20-to-40-lb bag packed loosely in an oversized carton can be billed as if it weighed even more than it does, because a parcel can be billed on its size instead of its weight. Our guide to shipping heavy and bulky pet items explains that billing in full, and our overview of pet products fulfillment covers the rest of the work.
Everything above applies to both products. What separates them is regulation. Clay or crystal litter is heavy and abrasive and expensive to ship, but it has no lot number, no expiry date and no climate need. Freight and strong packing are all it asks for.
Kibble is FDA-regulated animal food. We record its lot number and expiration date when it arrives, tie that lot to each order it ships in, and send the soonest-dated stock out first. Dry kibble is shelf-stable, so it keeps in ambient space. What stays with you as the brand is set out in our guide to the animal-food rules.
One order can hold a bag of litter and a bag of kibble together. Litter shouldn't go through animal-food handling, and kibble shouldn't skip its lot record. Kibble's lot and expiry tracking runs through our lot, expiry, and FEFO control, and litter skips it.
We don't treat the freight and the food handling as separate jobs. Every order is checked by barcode before it ships. Each kibble lot is recorded when the stock arrives and stays tied to the orders it goes out in. The freight on a heavy carton is arranged by the same team that picked and packed it.
The aim is fewer split bags on oversized units and less dimensional-weight charge on the bulky items, the two costs that quietly swell a pet brand's shipping bill. To test this on your own catalog, try the four ways above on your real litter and kibble SKUs, then bring us your volume and channels for a freight estimate.