Double wall
Combined board with two fluted mediums and three liners.
In practice
Common pairings mix a coarse and a fine flute, such as BC or EB. Packgent treats a double wall's caliper as the sum of its two flutes' nominal calipers.
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Related terms
- Single wall
- Combined board with one fluted medium between two liners.
- Triple wall
- Combined board with three fluted mediums and four liners, used for bulk bins and heavy loads.
- Combined board
- The finished corrugated sheet: one or more fluted mediums glued between flat liners.
Definitions written by Packgent, last reviewed 2026-10-27. All terms.