A sheet of corrugating material that has been softened with steam and pressed into wave shapes known as flutes The structure formed by gluing one or more sheets of fluted corrugating medium to one or more flat facings of linerboard
A board created by gluing a corrugated piece to a flat face, or between two flat faces Although corrugated board is made from a variety of materials and comes in a range of strengths and thicknesses, the most common corrugated board used in sign work is made of plastic
Usually a nine-point board after if has passed through a corrugating machine When this corrugated board is pasted to another flat sheet of board, it becomes single-faced corrugated board; if pasted on both sides, it becomes double-faced corrugated board or corrugated (shipping) containerboard