... For Model 9CLD-4240: There are 4 tiers in one cage group. There is 60*4=240 birds/ cage group (Cage group ... 1700mm, height 4250mm).3 For birds house Length100m * Width13m (total 4 rows, 40 cage group /row), If use 9CLD-4240, birds quantity ... , birds quantity could be 48,000. (Height of birds house 4.5m) If use 9CLD-6360, birds quantity could be 57 ...