Abstract: An apparatus for securing cargo during transport in a cargo hold wherein the cargo is centerloaded to provide adequate air circualtion and to distribute the weight. Centerloading leaves small voids and large voids between the walls of the cargo space and the walls of the cargo space. Inflatable deflatable bags are placed in the small voids and expandable braces are also positioned in the larger voids. The braces feature two blocks, one block on the end of a threaded shaft opposite the other block. A speed nut on the threaded shaft is turned to adjust the position of between the two blocks. The bags are flexible plastic with a valve for admitting air into the bag and a separate cap for releasing the air conveniently and quickly.