Cardboard boxes are industrially prefabricated boxes, primarily used for packaging goods and materials and can also be recycled. Specialists in industry seldom use the term cardboard because it does not denote a specific material.

The term cardboard may refer to a variety of heavy paper-like materials, including, RS 4 Box, corrugated fiberboardor paperboard. The meaning of the term may depend on the locale, contents, construction, and personal choice.