How big are chicken cages in factory farms?

In factory farms, chicken cages, particularly for hens raised for egg production, are often very small, typically measuring about 18 inches wide and 24 inches deep. In these cages, multiple hens are confined together, sometimes with as many as five to ten birds per cage, leading to extremely limited space for movement. This confinement can significantly restrict their natural behaviors and cause stress. The use of battery cages, which are particularly cramped, has come under increasing scrutiny and is being phased out in some regions due to animal welfare concerns.