Print surface
How flat and smooth the outer liner is for printing.
In practice
Finer flutes such as E and F give a flatter surface with less washboarding than coarse flutes.
Related terms
- Flute
- The wave-shaped medium inside corrugated board, and the size class of that wave (A, B, C, E, F).
- Linerboard
- The flat paper glued to each face of the fluted medium.
Definitions written by Packgent, last reviewed 2026-10-27. All terms.