A composite material and structure. The structure has a folded sheet having a rigid inner layer sandwiched between flexible outer layers. The sheet has an undulated shape with alternating summit and valley portions. Intermediate portions each extend between adjacent summit and valley portions. At least one score line extends through at least one of the flexible outer layers. The sheet is folded about the at least one score line. A method of forming a structure from a sheet having an undulated shape.

A container for an article includes a series of walls including a top wall that cooperate to define an interior of the container. A brace assembly is positioned toward an upper end defined by the interior of the container, and includes a brace member that is positioned below the top wall of the container and that defines opposite ends, each of which is located adjacent one of a pair of opposite sidewalls of the container. The brace assembly includes a carrier, which may be formed of a series of corrugated panels, and the brace member may be secured to a hinged brace member mounting panel such that the brace member is suspended above an upper surface of an article within the container interior and below the top wall of the container.

A composite material and structure. The structure has a folded sheet having a rigid inner layer sandwiched between flexible outer layers. The sheet has an undulated shape with alternating summit and valley portions. Intermediate portions each extend between adjacent summit and valley portions. At least one score line extends through at least one of the flexible outer layers. The sheet is folded about the at least one score line. A method of forming a structure from a sheet having an undulated shape