If it can be avoided, coils should not be stowed in a single tier, unless they are overstowed with other cargo. If there are only enough coils for a single tier and nothing can be placed on top, an ideal stowage would be to stow the coils in two tiers at the after end of the compartment. If single tier stowage cannot be avoided, each athwartship tier must be secured with a locking coil.