What percentage of the total floor space of an animal facility is typically designated for non-husbandry-related functions?

In most animal facilities, a designated percentage of floor space is allocated for non-husbandry-related functions, which include offices, labs, and common areas not directly involved with the care of the animals themselves. The choice indicating 25 percent reflects a commonly accepted ratio in many institutional settings, allowing for a balance between necessary operational spaces for husbandry activities and administrative or supportive functions.

This allocation ensures that there is ample space for staff to complete paperwork, conduct meetings, and manage facility logistics without interfering with the animal care routines, which require specific environments. Thus, the choice of 25 percent effectively addresses the need for a functional design within an animal facility that supports both animal care and administrative requirements.