3 Ply - Single Wall
- Corrugated at a medium level and glued between two flat liners.
- Most of the boxes we see everyday are made of this materials. And in fact about 80 percent of corrugated board is single wall.
5 Ply - Double Wall
- Corrugated at a medium level on a flat liner.
- This carton is stronger and heavier than the single wall board carton which makes it ideal for heavy weight substances.