Fully collapsible box with reverse mitred cleats

A collapsible box comprising

• four substantially vertical sidewalls meeting at four corners when the sidewalls are arranged in a rectangular configuration;
• each sidewall including a plurality of vertical slats and a plurality of generally horizontally disposed cleats vertically spaced along each of the sidewalls, each of the cleats having ends located at the corners, the walls further including at least two pairs of corner slats, each pair of corner slats located at one of a first pair of diagonally opposite corners, each said pair of corner slats including two adjacently located slats partially defining the respective corner;
• and
• means for tightly interconnecting the adjacent ends of cleats of adjacently located sidewalls at each of the corners;
• wherein the ends of the cleats located at said first diagonally opposite corners of the rectangular configuration have reverse outwardly facing miters lying in a common verticle plane when in an erected position and the corner slats at each of said first pair of diagonally opposite corners are not secured directly together, whereby the sidewalls may be hingedly collapsed with the adjacent cleat ends remaining interconnected at each of the four corners without adversely affecting the tightness of interconnection between adjacently located cleats.