A flexible system is provided for preventing freight damage during shipment. The system has adjustable and interlocking hinged panels that are attached to the side walls of a shipping enclosure, so that the system can be readily adapted to secure different types and sizes of loads. One embodiment of the invention, provided for use with a freight carrying enclosure that has an internal wall, includes first and second panel segments that each have an edge. A first mounting structure supports the first panel segment for rotation about a vertical axis, between a first position wherein the first panel segment is in perpendicular relationship with the wall, and a second position wherein the first panel segment is in abutting relationship with the wall. A second mounting structure joins the first and second panel segments together along their respective edges, and enables rotation of the second panel between vertical and horizontal orientations. A support structure selectively maintains the second panel segment in its horizontal orientation.