Coop Size Planner
Enter your hen count, breed size and climate below to see the coop floor space, outdoor run space, roost length, nest box count and ventilation opening your flock needs, along with a simple floor plan.
- Suggested coop floor
- Indoor space needed
- Outdoor run space needed
- Roost length
- Nest boxes
- Ventilation opening
Your flock fits the free 4-hen starter plan. Get the free plan.
Your flock needs a bigger build than the free plan covers. See the paid plans sized for your flock.
Indoor space, outdoor run space and roost length follow Penn State Extension's "Small Scale Poultry Housing" guidance, using the larger, more conservative end of each range. Ventilation opening is this tool's own conservative sizing rule, not a building code figure, and is labeled as such wherever it is shown.
