A type 3 tier pullet cage specification
1950x500x350mm
0 week-6 weeks,400-600 pullets/set.
6 weeks-12 weeks 120-180 pullets/set.

A type 4 tier pullet cage specification
1950x500x350 mm
0 week-6 weeks: 550-800 pullets/set
6 weeks-12 weeks 160-240 pullets/set