What is Corrugated Flute?

A corrugated flute is the wave-shaped paper layer positioned between the liners of the corrugated board. Its profile influences the board's cushioning, compression strength, thickness, and rigidity. Common flute categories include A, B, C, E, and F, although applications vary. Larger flutes generally provide greater cushioning, while smaller flutes can support better print surfaces and compact packaging. Flute selection depends on product weight, box dimensions, stacking, and shipping requirements.