Rigid & Corrugated Packaging
Due to the nature of rigid and corrugated packaging is made of thick material, it is recommended to use internal dimensions. Using the internal dimensions guarantees the absolute correct amount of space needed to fit your products perfectly.
Folding Carton & Other Packaging
Packaging types made of thinner material like folding cartons or paper bags are generally okay to use external dimensions. However, because it is industry standard to use internal dimensions, it would be easier to stick with internal dimensions to avoid any future issues.
If you are having trouble getting the measurements for your packaging, you may reach out to your designated sales representative for some additional help.