Cannabis Packaging Shipping Cost Guide: How to Reduce Freight & Avoid Overpaying (B2B) If you’ve ever reviewed a freight invoice for a cannabis packaging order and wondered why shipping costs were so high, you’re not alone. For vape cartridge packaging, pre-roll boxes, child-resistant packaging, and other cannabis packaging products, freight often becomes a hidden cost driver. This guide explains how packaging volume impacts freight, when sea freight is more cost-effective than air freight, how DDP shipping works for USA and Canada buyers, and how split shipment strategies and compact box sizing can significantly reduce total cannabis packaging logistics costs.