Question 1

How much ventilation does a chicken coop need?

Accepted Answer

The standard rule is 1 square foot of vent opening per 10 square feet of coop floor. In hot climates, double it. Vents should sit high on the walls, above roost height.

Question 2

Can a coop have too much ventilation?

Accepted Answer

In winter, drafts blowing directly on roosting birds cause frostbite. Vents high on the walls provide airflow without a draft on the birds.

Question 3

Where should vents be located?

Accepted Answer

High on opposing walls, well above roost bars. This lets ammonia and moisture escape without chilling sleeping birds.

Coop Ventilation Calculator