Poultry House Ventilation Calculator
Calculate minimum, transitional, and tunnel ventilation CFM requirements for poultry houses based on bird count, weight, and house dimensions.
Inputs
ft
ft
lbs
Results
Minimum Ventilation
28,125 CFM
Tunnel Ventilation
192,000 CFM
Transitional Ventilation112,500 CFM
Min Vent Fans Needed2
Tunnel Fans Needed9
Air Exchanges/hr (Min)10.5
Air Exchanges/hr (Tunnel)72
Floor Space per Bird0.8 sq ft
House Floor Area20,000 sq ft
How to Use This Calculator
- Enter the house length and width in feet to calculate the total house volume.
- Input the bird count and average bird weight in pounds to determine heat and moisture load.
- Review Minimum Ventilation CFM for cold-weather moisture control and Tunnel CFM for hot-weather cooling.
- Check Min Vent Fans Needed and Tunnel Fans Needed to plan your fan bank layout and staging.
- Use Air Exchanges per Hour (Min) to verify your ventilation system meets the 4–6 exchanges per hour minimum.
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