locking pattern:
unit loads may be built up on pallet with plan dimension suited to modules being handled. in this way layers may be built up each differing from its neighbours and providing restraint in a similar manner to a brick wall. alternate layer patterns are reversed to "tie in" the layer beneath.
the effect of the pallet
the pallet, because it raises the cargo approximately 150mm (6") off the deck of the hold. has the effect of raising the centre of gravity of the cargo which may, in certain circumstances, have to be allowed for.
pallet use more space than conventional dunnage, perhaps 10 to 14%.