Honeycomb Board    Honeycomb board  is a lightweight, tough and durable packing material consisting of a  honeycomb  core sandwiched between kraft linerboard. Amazingly light and incredibly strong,  honeycomb board  is an excellent alternative to  cardboard .  Made with SFI-certified all natural, renewable virgin and post consumer recycled fibers. Hexacomb honeycomb is an all-natural alternative over petroleum-based plastic products.