Abstract: A movable bulkhead or cargo restraint assembly is provided for cargo space such as a railway car, truck bed, boat hold or the like in the form of a plurality of spaced apart elongated strands fixed at one end to a confining wall of a cargo space, said strands being spaced apart around a cargo to be restrained, bulkhead device movable on said elongated strands lengthwise thereof to contact the cargo to be restrained, and a clamp device adjustable on each strand bearing against said bulkhead device engaging said strand to restrain said bulkhead against movement away from the cargo and releasing the strand on movement in the opposite direction whereby said clamp is adjusted to tightly hold the bulkhead device against said cargo.