  Double-wall board consists of three flat liners and two corrugated medium combined in the following sequence - a flat liner, a corrugated medium, a (center) flat liner, a corrugated member, and a flat liner. It is manufactured of various kinds and grades of materials and strength. The illustration shows the double-wall corrugated fiberboard constructed in C and B-flute form. It may be constructed using other combinations of flutes, such as, A-C, B-A, B-B, etc.
The protection afforded by double-wall corrugated fiberboard is greater than that of double-faced corrugated fiberboard. |