Abstract: A one piece box folder that requires no tucking of flaps and can be erected from a one piece blank. The box is assembled from a unitary blank in which the panels are folded over and connected to one another by physical affixation such as hot melt glue, pressure sensitive adhesive or other means of affixation. The front of the box is formed of at least two plies with a slot between a top ply and a bottom ply receiving an end tab of a cover. The slot through its thickness easily receives the end tab of the cover in self guiding relationship and tightly packed articles do not prevent the ready insertion of the tab. The top cover with the end tab forms with the top overlaying ply of the front a closely knit assemblage which resists inadvert opening by a relatively deep width of the hinged cover tending to keep the end tab within the slot closure.