TM 55-607/NAVSEA OP 3221 Rev 2
Figure 8-6. Construction details for basic block-stow securing prepared in advance (hull blocking technique).
c. Prior to dunnaging operations, lumber of the required sizes is pre-positioned around the perimeter of the
compartment as shown in figure 8-7. Thus, after stowage begins, carpenters will have lumber readily available while
installing the securing structures behind the stowed cargo. It is important to note that dunnaging need not keep pace with
stowage of unit loads when the block-stow technique is used. The compartment is loaded first with cargo in block
fashion, and dunnaging operations proceed in the wings behind the stowed unit loads.