Size by flock
Coop size for 6 chickens
For 6 standard-size hens: 24 sq ft of floor (2.2 m²), a 60 sq ft run (5.6 m²), 60 inches of roost and 2 nest boxes. Here is what that looks like in practice.
The plan
| Item | Minimum | Suggested shape |
|---|---|---|
| Coop floor | 24 sq ft · 2.2 m² | about 4.9 × 4.9 ft (1.5 × 1.5 m) |
| Run | 60 sq ft · 5.6 m² | about 5.5 × 11.0 ft (1.7 × 3.3 m) |
| Roost bar | 60 in · 1.5 m | a 5 ft 2×4, wide side up |
| Nest boxes | 2 | 12 × 12 in |
| Feeders and waterers | 1 of each | one extra waterer in summer |
Why these numbers
They are the minimums extension offices and most experienced keepers use: 4 sq ft of coop and 10 sq ft of run per standard hen, 8 to 10 inches of roost, one nest box per 3 to 4 hens. A crowded coop is the number one cause of feather picking, bare backs and broken eggs.
If your hens are not standard size
Bantams (Silkies, Sebrights): 12 sq ft of coop and 36 of run. Large breeds (Orpington, Brahma, Jersey Giant): 30 and 72.
Before you build
- Ventilation up high, no drafts down low. Half-inch hardware cloth on every opening, never chicken wire.
- Roosts higher than nest boxes, or they will sleep in the boxes and foul the eggs.
- A walk-in coop saves your back every single week.
- Build for 8: chicken math is real.
- Check your city and HOA rules on flock size and setbacks before buying lumber.
Kit makers often overstate how many hens fit, so compare the floor size on the listing with your number. Big kits don’t always ship to Puerto Rico, Hawaii or Alaska.
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Change the breed or the count in the coop size calculator.
Common questions
What size coop do I need for 6 chickens?
At least 24 sq ft of floor (2.2 m²) for standard breeds, plus a 60 sq ft run (5.6 m²). More is always better.
How many nest boxes for 6 chickens?
2. One box per 3 to 4 hens; they will all use the same one anyway.
Can 6 chickens live in the coop with no run?
Only if the coop is sized as coop and run combined, about 84 sq ft, with light and ventilation. A 24 sq ft coop is a bedroom, not a home.
What about bantams or large breeds?
Bantams: 12 sq ft of coop and 36 of run. Large breeds (Orpington, Brahma): 30 and 72.