Cardboard is a generic term for heavy-duty paper-based products having greater thickness and superior durability or other specific mechanical attributes to paper; such as foldability, rigidity and impact resistance. The construction can range from a thick sheet known as paperboard to corrugated fiberboard which is made of multiple corrugated and flat layers. Despite widespread general use in English and French the term cardboard is deprecated in commerce and industry as not adequately defining a specific product.[3] Material producers, container manufacturers, packaging engineers,] and standards organizations,use more specific terminology.Paperboard is a paper-based material, usually more than about ten mils (0.010 inches (0.25 mm)) thick. It is often used for folding cartons, set-up boxes, carded packaging, etc. Configurations of paperboard include: Containerboard, used in the production of corrugated fiberboard. Folding boxboard, comprising multiple layers of chemical and mechanical pulp. Solid bleached board, made purely from bleached chemical pulp and usually has a mineral or synthetic pigment. Solid unbleached board, typically made of unbleached chemical pulp. White lined chipboard, typically made from layers of waste paper or recycled fibers, most often with two to three layers of coating on the top and one layer on the reverse side. Because of its recycled content it will be grey from the inside. Binder's board, a paperboard used in bookbinding for making hardcovers. Currently, materials falling under these names may be made without using any actual pape