Corrugated fiberboard, corrugated cardboard, or corrugated is a type of packaging material consisting of a fluted corrugated sheet and one or two flat linerboards. It is made on "flute lamination machines" or "corrugators" and is used for making corrugated boxes.
The corrugated medium sheet and the linerboard(s) are made of kraft containerboard, a paperboard material usually over 0.25 millimetres (0.01 in) thick.
Corrugated board
Main flutes for corrugated fiberboard
Regular Slotted Container (RSC)
A box maker's certificate is typically printed on what will become the underside of the box
Corrugated box design is the process of matching design factors for corrugated fiberboard or corrugated plastic boxes with the functional physical, processing and end-use requirements. Packaging engineers work to meet the performance requirements of a box while controlling total costs throughout the system. Corrugated boxes are shipping containers used for transport packaging and have important functional and economic considerations.
Partial overlap box with interlocking slots to temporarily close box
Corrugated plastic box used as reusable packaging
Microflute box with circular security tape seal
Partially open; showing tuck flap and locking tab (tongue)