Corner boards, container assemblies including the same, and methods of making and using the same

A corner board, comprising:

• first and second sides, each comprising a board material;
• a bend between the first and second sides, joining first and second sides together;
• and
• a first slit in an outer edge of the corner board and near or adjacent to a first end of the corner board, or in the first end of the corner board, wherein the first slit is from about 0.5 cm to about 2 cm from the first end of the corner board when the corner board has a thickness of about 0.6 cm or greater, and from about 0.75 cm to about 3 cm when the corner board has a thickness of less than 0.6 cm, forming a first flap adapted to place, set, or rest the corner board on an uppermost surface of a stack of containers.

A corner board, comprising:

• first and second sides, each comprising a board material and having an identical width;
• a bend between the first and second sides, joining first and second sides together;
• and
• a first slit in an outer edge of the corner board and near or adjacent to a first end of the corner board, or in the first end of the corner board, forming a first flap adapted to place, set, or rest the corner board on an uppermost surface of a stack of containers, the first slit having a depth of about 20-50% of the width of each of the first and second sides.

A corner board, comprising:

• first and second sides, each comprising a board material;
• a bend between the first and second sides, joining first and second sides together;
• and
• a first slit in an outer edge of the corner board and near or adjacent to a first end of the corner board, or in the first end of the corner board, forming a first flap adapted to place, set, or rest the corner board on an uppermost surface of a stack of containers;
• and a second slit, near, adjacent to, or in the first end of the corner board, forming a second flap adapted to set, place, or rest the corner board on the surface, wherein the first flap is in the first side, the second flap is in the second side, the second flap has a third angle of about 30° to 150° with respect to the second side of the corner board, the first and second slits are equidistant from a parallel edge of the corner board, and each of the first and second flaps has a length of about 0.3 cm to about 2.5 cm.