90 sets - 4 tiers 5 doors 160 birds cages - breed around 14400 chicken
100 sets - 4 tiers 4 doors 128 birds cage - breed around 12800 chicken.
110 sets - 3 tiers 5 doors 120 birds cage - breed around 13200 chicken.
120 sets - 3 tiers 4 doors 96 birds cage - breed around 11520 chicken.
May I know your plan about the cages, so that we can give a best suggestion or solution to you?