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Flock space calculator

Estimate housing, run space and feeding points for small poultry and waterfowl flocks.

duck coop size calculator chicken run size calculator quail space calculator

Minimum planning estimate

Indoor house
2.4 m2 / 25.8 sq ft
Secure run
12.0 m2 / 129.2 sq ft
Feed points
1 feeder
Water points
2 water points

6 ducks need more than floor area alone. Ducks need dry bedding, drinking water deep enough to clean nostrils, and a predator-safe night house.

Read the related care guide

How to use it

How the flock space calculator works.

The calculator multiplies your flock size by a simple planning allowance for indoor housing, secure run space, feeders and water points. It covers small domestic flocks of ducks, chickens, geese and quail. The figures are deliberately practical estimates for early planning, not a claim that a setup is legally compliant or welfare-perfect in every situation.

Outdoor birds need more than square metres. A good setup also includes dry shelter, ventilation without drafts, shade, predator protection, clean bedding, suitable flooring, enrichment, easy cleaning, and enough feed and water access for lower-ranking birds. For ducks and geese, water access is especially important because they need to clean their heads and nostrils.

How to use the estimate

  • Treat the house figure as a night shelter or bad-weather planning minimum, then add more space where possible.
  • Treat the run figure as secure outdoor space, especially if birds cannot safely range over a larger area every day.
  • Round feeders and drinkers up, then place them so timid birds are not blocked by dominant flock mates.
  • Check current local and UK bird-keeping rules, disease-control requirements and avian influenza guidance before setting up or moving birds.

When space is not the only issue

Increase space or review the setup if birds are bullying, feather pecking, standing in wet bedding, struggling to reach food or water, losing condition, showing lameness, or spending long periods without shelter. If disease signs appear, isolate affected birds where appropriate and contact a vet or relevant animal health authority for current advice.

Common questions

Is this a legal stocking-density calculator?

No. It is a planning tool for small pet or hobby flocks. Legal and disease-control rules can change, so check current official guidance for your situation.

Can I keep fewer water points if birds free range?

Usually no. Birds still need reliable clean water in the areas where they spend time, and ducks need water deep enough to clean their nostrils.

Why do geese need more space than chickens?

Geese are larger, graze more, and need more outdoor room to move comfortably and avoid stress.

What should I do before buying birds?

Plan the housing first, check local rules, budget for feed and bedding, identify an avian-capable vet, and think about how you will handle disease restrictions.

Use the result as a starting point.

These tools are planning aids, not a diagnosis or a replacement for veterinary advice. If a pet is unwell, has eaten something risky, or you are unsure what to do next, contact a vet.