Poultry Density & How Many Birds Fit?
Houses broilers
Enter your shed floor area and bird type to get the maximum number of birds, the birds per square metre, the floor space per bird, and how many feeders and drinkers you need.
Plan your shed
Next: keep within 15/m², provide the 36 feeders and 23 drinkers shown, and ensure ventilation scales with bird weight.
Densities are typical guides (e.g. broilers ~30 kg/m², deep-litter layers ~7/m²); follow local welfare codes and adjust for climate and ventilation.
Poultry stocking density — key facts
- Broilers
- limited by ~30 kg/m²
- Broiler birds
- area × kg/m² ÷ bird weight
- Deep-litter layers
- ≈ 7 birds/m²
- Cage layers
- higher per house floor
- Breeders
- lower density
- Chicks (brooding)
- higher density
- Overcrowding
- more heat, ammonia, disease, culls
- Privacy
- Runs in your browser; nothing uploaded
More birds isn't always more profit
Stocking density is the quiet decision that shapes a poultry enterprise. Put more birds in a shed and you spread the cost of the building, heating and labour across more output — but only up to a point. Crowded houses run hotter, build up ammonia in the litter, and let disease move fast, so growth slows and culls climb. Past the right density, every extra bird earns less and risks more, and the flock as a whole can perform worse than a lighter-stocked one.
This tool sizes the shed for you. From your floor area and bird type it returns the maximum birds, the birds per square metre, the floor space per bird, and the feeders and drinkers needed — using live weight per square metre for broilers and bird counts for layers, breeders and chicks. Follow your local welfare codes and adjust for climate and ventilation, then pair this with the Poultry Brooding, Poultry Litter and Poultry & Egg Profit calculators to plan the whole house.
Size the shed
Know how many birds your floor area can carry.
Protect performance
Avoid the overcrowding that cuts growth.
Match the equipment
Get feeders and drinkers to the flock size.
Meet welfare codes
Check space per bird against the rules.
Frequently Asked Questions
What is stocking density in poultry?+
Stocking density is how many birds you keep per unit of floor area — birds per square metre, or for broilers, live weight per square metre. It is the central trade-off in a poultry house: pack in more birds to spread fixed costs, but push too far and welfare, growth and survival all suffer. The right density balances output against bird performance.
Why does overcrowding hurt the flock?+
Crowded birds generate more heat and moisture, so the house runs hotter and litter ammonia rises. That stresses the birds, depresses feed intake and growth, spreads disease faster, and lifts culls and mortality. Beyond a point, extra birds add cost and risk without adding saleable output — the flock as a whole performs worse.
How is broiler stocking density worked out?+
Broilers are limited by live weight per square metre rather than bird count, because birds grow heavy. A common target is around 30 kg/m². Number of birds = floor area × kg per m² ÷ target slaughter weight per bird. A 400 m² house at 30 kg/m² carries 12,000 kg of birds — about 5,000 broilers finished at 2.4 kg each.
What density should layers be kept at?+
Deep-litter layers are usually kept at around 7 birds per square metre. Cage systems hold more birds per unit of house floor because they use vertical space, while free-range and barn systems are lower. Whatever the system, layers need enough room to feed, drink, perch and nest comfortably to keep laying well.
Do breeders and chicks have different densities?+
Yes. Breeders are kept at lower densities than commercial layers to protect fertility, body condition and mating behaviour. Day-old chicks in the brooding phase are stocked higher because they are tiny and need warmth, then given more space as they grow. This tool adjusts the density for the bird type you select.
How many feeders and drinkers do I need?+
Feeder and drinker numbers scale with bird numbers, not just floor area — every bird must reach feed and water without crowding or queuing, or growth and uniformity suffer. The tool estimates how many feeders and drinkers your flock needs so equipment keeps pace with the stocking density you choose.
How much floor space does one bird get?+
It is the inverse of density. At 7 birds per square metre each bird has about 1,430 cm² (10,000 ÷ 7). The tool reports space per bird in cm² alongside birds per square metre, which makes it easy to check your house against welfare codes that quote space per bird.
Does climate change the right density?+
Yes. In hot, humid conditions or sheds with poor ventilation, lower the density — birds need more room to shed heat, and crowding makes heat stress worse. Well-ventilated, climate-controlled houses can carry birds closer to the upper limit. Always adjust the figure for your weather and airflow, not just the floor area.
Are there legal limits on stocking density?+
Many countries set maximum densities in welfare codes — for broilers these are often expressed as kg/m² (commonly 33–42 kg/m² depending on conditions and standards). Use this tool to plan, but always check your local welfare regulations and any assurance-scheme rules, which take precedence over a planning figure.
Is this exact?+
It is a planning estimate based on standard per-area and per-weight targets. Actual capacity depends on the bird strain, target weight, house design, ventilation, climate and the welfare standard you farm to. Treat the result as a starting point, then confirm against your local code and your own flock's performance.