A packaging container including a packaging insert suspending an article within an exterior box. The packaging insert is formed as a top portion overlying a bottom portion, each including a pair of side panels and a pair of end panels, corresponding top and bottom side panels being affixed together face-to-face such as with adhesive at manufacturing time, and corresponding top and bottom end panels being affixed together face-to-face at packaging time. The bottom end panels include bottom end panel extensions which trap the top end panels against the bottom end panels, and which include lock tabs engaging the bottom panel. The mated side panels are angled e.g. downward and the mated end panels are angled e.g. upward, to provide stand-off within an exterior box, protecting the packaged article. The top and/or bottom panels include break control means such as slotted holes, which control where each panel breaks when stressed around the packaged article by closure of the packaging insert. The article is further protected by angled regions formed as the panels break around the thickness of the article while the side and end panels are affixed face-to-face.