Corrugated Regular Slotted Container
All flaps are the same depth, and the two outer flaps (normally the lengthwise flaps) are one-half the container’s width, so that they meet at the center of the box when folded. This is a highly efficient design. The only overlaps are the flap for a glued or stitched manufacturer’s joint, and the inner (or minor) flaps. There is very little manufacturing waste. The RSC can be used for most products, and is the most common box style. If the product requires a flat, even bottom surface, or the protection of two full layers, a fill-in pad can be placed between the two inner flaps.
Corrugated Overlap Slotted Container
All flaps are the same depth, and the outer flaps overlap by 1 inch or more. The box is easily closed, usually with staples driven through the overlap area. This style is used when the length of the box is considerably greater than the width, resulting in a long gap between inner flaps. The sealed overlap helps to keep the outer flaps from pulling apart.
Full-Overlap Slotted Packaging Container
All flaps are the same depth, and their depth equals the width of the box. When closed, the outer flaps come within one inch of complete overlap. The style is especially resistant to rough handling. Stacked on its bottom panel, the overlapping flaps provide added cushioning. Stacked on its side, the extra thickness provides added stacking strength.
Corrugated One-Piece Folder Boxes
One piece of board is cut so that it provides a flat bottom, with flaps forming the sides and ends, and extensions of the side flaps meeting to form the top. One-, two-, and three-piece folders are used for books and other items shipped in a single unit.
Corrugated Two-Piece Folder Boxes
Two rectangular scored pieces provide a double unbroken layer for the bottom, and a double layer for the top. Flaps of one piece form the sides, and flaps of the second piece form the ends.
Corrugated Self-Locking Five-Panel Folder Boxes
A single cut and scored piece features a fifth panel used as the closing flap, completely covering a side panel. The closed box has several thicknesses in each end, providing stacking strength and protection for long articles of small diameter, which might be damaged, or damage the box, if pushed through ends.