Corrugated Boxes: Shown here is a sample of the most common fibre board. Single, double, and triple wall. Flutes A, B, C, and E as well as a combination of flutes to make a double wall. Boxes are call out by L x W x H inside dimension. We also have a variety of styles such as RSC, HSC, DSC, DST, and RETT. Other available products are the reusable corrugated plastics and chip boards.