Inner and outer flaps are cut to different lengths. Both pairs of flaps meet at the center of the box. This style is especially strong because both the top and bottom have double the thickness of corrugated board. The inner flaps, with no gap, provide a level base for the product. A variation of this box is the Slide Special Slotted Container.

A full enclosure type of box providing a stronger casing for non standard products and guaranteed for its strong top and bottom support.

This style is especially resistant to rough handling. Stacked on its bottom panel, the overlapping flaps provide added cushioning. All flaps have the same length (the width of the box). When closed, the outer flaps come within one inch of complete overlap.

This style has the capability to encase oversize products and ideal for non standard products. It requires tape or glue for sealing to its full enclosure capabilty.