The “Flute” describes the structure of the wave shaped cardboard material (medium) that makes up a boards corrugation.
Linerboard is the “flat facing” that adheres to the medium. The three most common flute sizes are B, C, & E. Find out more about corrugated board.
Corrugated Flutes
Flute | Profile | Thickness | Comments |
C |  | 3-4mm |
Uses: Glass, furniture, dairy |
B |  | 2-2.5mm |
Uses: Canned goods, displays |
E |  | 1-1.2mm |
Uses: Canned goods, displays |
BC |  | 5-6mm |
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