The term fluting refers to the part of a corrugated sheet or box that looks like a wave. Fluting is what provides higher stacking strength and durability to corrugated boxes. There are various types of fluting and the differences among them are typically described in terms of the number of flutes per linear foot and the height of the flute itself. Corrugated sheets manufactured from different types of fluting are commonly referred to as:
- A Flute
- B Flute
- C Flute
- E Flute
- F Flute
In order to provide required levels of strength and durability for a specific purpose, it is important that the appropriate type of corrugated sheet is used when manufacturing different types of corrugated packaging.