box designs , blanks for forming boxes by folding , collapsible and non - collapsible boxes formed thereby , and manufacturing methods therefor are disclosed . an exemplary box is formed from folding a single sheet of material having fold lines therein . the assembled box includes a lid comprising a top panel having top side panels that extend partially within the interior of the box and partially on the exterior of the box when the box is assembled and the lid is closed . overlapping side panels of the box define openings through which the top side panels extend in crossing over from the exterior of the box to the interior of the box . in a feature , the openings defined in the sides of the box are covered by the top side panels when extending therethrough . in another feature , the box is collapsible when in the assembled state .