A casket assembly includes a bottom panel, side panels, end panels, and mechanically strengthening insert. The bottom panel is formed of a pliable material. The side panels are formed intrinsically with the bottom panel. Each side panel includes a lower section and an upper section foldably attached thereto. The lower section extends vertically upward from the bottom panel. In a first configuration, the upper section extends upward from the lower section. In a second configuration, the upper section extends in a direction other than vertically upward from the lower section. The mechanically strengthening insert is disposed at least in part adjacent the lower section of at least one side panel. The end panels are formed intrinsically with the bottom panel.