Corrugated Flutes and Combos

Corrugated flutes describe the structure of the material in the center (wave-shaped cardboard) that makes up the board’s corrugation. There are several different types of flutes, ranging from A to F.

A-Flutes: 36 Flutes/linear foot (The highest flute size).

B-Flutes: 49 Flutes/linear foot (Lower arch heights than “A”).

C-Flutes: 41 Flutes/linear foot (Split difference between “A” and “B”).

E-Flutes: 90 Flutes/linear foot (Greatest number of flutes/foot).

F-Flutes: 128 Flutes/linear foot (Most popular choice for corrugated).

Flute Types:

Corrugated Combos

Single board consists of two liners separated by medium in one of four typical flute configurations: C, B, A or E.

These flutes evolved over time in response to changing manufacturing and distribution demands. The letter sequence refers to the sequence of development.

Corrugated Combos:

Corrugated Combos

Doublewall consists of two outside liners and a middle liner separated by two mediums. Typically B and C mediums are used in combination.

Triplewall consists of four liners separated by three mediums.

Linerboard Combos:


Linerboard combos come is different shapes and sizes. For questions, please contact one of our sales specialists today.

IPS Packaging was established in 1976 in Greenville, South Carolina as a small, family business. As one of the top ranking companies in South Carolina, IPS Packaging has continued to grow in the packaging industry throughout the United States and abroad. Even with the broad scope of sales regions, IPS Packaging is still able to provide the highest level of customer service.  For more information on IPS Packaging’s packaging solutions, call 800.277.7007 or email our Sales team.

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Posted in Boxes/Corrugated Sheets, Packaging Supplies