Free Tool · 30 seconds
Chicken Coop Size Calculator
How many birds are you planning? We'll size the coop and run, figure the roost, and tell you how many nest boxes you need.
How many chickens?
14 birds30
What kind of birds?
Coop
16 sq ft
≈ 4×4 ft · 4 sq ft / bird
Run
40 sq ft
≈ 10 sq ft / bird outdoors
Roost
32″ total
≈ 2 × 24″ bars · 8″ / bird
Nest boxes
1
1 box per 4 hens
Guidance: 4 sq ft per standard hen inside the coop, and roughly 10 sq ft per bird in the run. These are minimums — more is always better, and winter moisture goes way down with a little extra room.
Now size the whole flock — or match breeds that are happy in your space.