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Tell us how many chickens you plan to keep and this calculator works out the minimum coop size, run space, roost length and nesting boxes for your flock.
24 sq ft
minimum coop floor space
60 sq ft
minimum run space
5 ft
total roost bar length
2
nesting boxes
The Numbers Behind This Calculator
| Bird size | Coop per hen | Run per hen | Roost per hen |
|---|---|---|---|
| Bantam | 2 sq ft | 6 sq ft | 8 inches |
| Standard | 4 sq ft | 10 sq ft | 10 inches |
| Large breeds | 5 sq ft | 12 sq ft | 12 inches |
These are healthy minimums, not ideals. More space always means calmer, cleaner and healthier hens — if you can go bigger than the result above, do it. Hens that free range most of the day can manage with about half the run space, but the coop and roost numbers stay the same because every bird still sleeps inside.
