Abstract: A support pad formed from a pair of corresponding horizontal vertically spaced rectangular blanks each divided by a pair of parallel fold lines into a center panel and a pair of side wall panels. In one embodiment, the blanks are joined by a pair of spacer members adhesively bonded between corresponding side wall panels of the blanks. The center panel of one blank contains a line of severance parallel with the fold lines, and cut out portions on opposite sides of the line of severance that define sets of corresponding dovetail projections and grooves.

Abstract: A unitary blank for forming a packaging container for a heavy article such as a motor is disclosed, the blank including opposed vertical side and end wall panels, and top and bottom flaps connected with each of the panels, respectively, characterized by the provision in the fold lines between each of a pair of opposed panels and at least one of the flaps connected thereto an H-shaped cut, which cut straddles the fold line and defines a pair of opposed binding tabs generally facing the fold line, whereby when the flap is folded to a horizontal position and the tabs are foldably displaced inwardly, a recess is formed in the edge between the panel and the associated flap for receiving a binding strap arranged circumferentially about the container.