
Parcel Overpack Rules and Exceptions: A Box Size Validation Table
A practical validation table for fulfillment teams that need to check parcel void ratio, paper cushioning exceptions, and box-size decisions before shipment.

A practical validation table for fulfillment teams that need to check parcel void ratio, paper cushioning exceptions, and box-size decisions before shipment.

Molded fiber cushioning is gaining attention as an alternative to plastic foam, but approval depends on tooling cost, strength, moisture behavior, lead time, line compatibility, and total cost—not on a sustainability claim alone.

Honeycomb paperboard is one of the few paper-based structures that can stand in for EPS and PE foam in industrial cushioning. It is strong in planar compression but limited under point loads, humidity, and repeated impact. This guide outlines where honeycomb works as a foam alternative in 2026, and where exporters should still use other paper-based solutions.