Abstract: A mailing container is disclosed which is preferably made of corrugated paperboard. The container is formed from a folded paperboard blank which is pre-cut and scored. The container provides a compact strong receptacle for articles to be transported through the mail so as to supply additional protection for such articles not possible with the use of conventional mailing envelopes.

Abstract: A one-piece tray is provided with corner ledges that serve as corner reinforcement bases when the trays are stacked one upon another. The side panels of the tray are provided with retaining lips extending from their top edges. The end panels are provided with tongues extending from the folded top edges thereof. The retaining lips and tongues serve to prevent lateral movement among the trays when stacked.

Abstract: A one-piece tray cover is provided with corner ledges that maintain the cover in an elevated position with respect to the top edges of a bottom tray on which the cover is positioned. The tray cover can also function as a supporting base for the tray bottom. When so used, the cover is inverted with its opening facing upward. The bottom tray is then placed inside the upward facing opening of the inverted tray cover. When used as a support base, the corner ledges serve to support the tray bottom in an elevated manner. The height of the corner ledges is less than the overall height of the tray cover. The corner ledges may be provided with a tapered edge resulting from a back-to-back fold along two non-parallel crease lines.

Abstract: A corner pad for protecting furniture and like articles during shipment is formed from a planar, one piece corrugated blank folded into a four ply tetrahedron. The pad is formed by folding a rectangular array of panels of the blank in a consecutive counter-clockwise sequence. The four-ply tetrahedron corner pad is draped over the corner of an article and provides substantial cushioning protection to the corner during shipment of the article in a container.