Abstract: This invention provides an easily erected tray structure for produce and the like, featuring construction from a single corrugated blank which is preglued and folded in a flat configuration, and which incorporates at its opposite ends and intermediate thereof interlocking projections providing improved stackability and improved structural integrity during shipment and display usage. A method for producing the tray includes prefolding a blank into a flat configuration and pregluing pairs of panels together, prior to final erection of the box.

Abstract: A folder for packaging and shipping a reel of magnetic or recording tape which supports the reel of tape on both sides and prevents slipping of the tape. The folder includes a pair of hinged panels which are foldable into overlying relationship with the opposite sides of the reel of tape. At least one of the panels includes unique hub-locking tabs which fold to fit within the center opening of the reel hub to securely position the reel of tape. The areas adjacent to the hub-locking tabs are crushed to a reduced thickness to accommodate the width of the reel hub to allow the hinged panels to rest flush against the edges of the tape on the reel. The hinged panels also include mating corner-locking tabs and cutouts which cooperate to lock the panels together to form the folder.