What are corrugated boxes, and how do they differ from solid paperboard?
Corrugated boxes are made from paperboard with a fluted medium bonded to flat liners. The fluted structure is one part of how the finished package provides rigidity and product protection.
"Cardboard" is a broad everyday term. Solid paperboard cartons do not have the fluted core found in corrugated board and are often selected for retail presentation. Corrugated shipping cartons, printed mailers and heavy-duty structures are selected around a combination of protection, packing efficiency and presentation. The complete design matters more than the material name alone.