Cardboard is a particularly thick and heavy paper material consisting of a central corrugated layer and two flat side sheets.

Its origins date back to 15th-century China, while the first commercial cardboard boxes were sold in England in 1817.
The boundary between paper and paperboard is conventionally set at 224 g/m² with a thickness of at least 175 µm; the mechanical and optical properties of paperboard are specified by the ISO 5651:1989 standard.

Type of cartons:

  • Flat cardboard or cardboard
  • Simple wave cardboard, consisting of two outer sheets and one inner corrugated sheet.
  • Double wave cardboard, consisting of three sheets, two outer and one middle sheet and between them two corrugated sheets.