There is not one grouping that is better suited than others. The arrangement in staggered rows brings benefits on large groupings (24 units and more) as well as on smaller ones (6,9,12,15). Nevertheless, groupings that are a multiple of 6 have been defined for conventional packs. «Unconventional» groupings of 15,28,35 are often better suited to nested packs and can allow to generate higher savings. Today’s standard container diameters also result from an optimization based on conventional packs ; this is why Femaag has developed Opti’Nest, a tool that can simulate the impact of a diameter change on the number of nested packs that can be loaded on a pallet.