Abstract: A load retainer for use in the void of a cargo container to resist shifting of the cargo in transit has a symmetrical load bearing surface to evenly distribute the force delivered by the cargo. In a first presently preferred embodiment, the load retainer comprises a pair of panels which are coupled together to form an H-shaped device. The panels remain parallel to each other in an expanded load retaining configuration, a collapsed storage configuration and all positions therebetween. A second presently preferred embodiment has a symmetric rectilinear network shaped configuration and includes locking tabs to releasably secure the device in that configuration and resist lateral forces in either direction.