<P> A prison cell, also known as a jail cell, is a small room in a prison or police station where a prisoner is held . Cells greatly vary by their furnishings, hygienic services and cleanliness, both across countries and based on the level of punishment to which the prisoner has been sentenced . </P> <P> The International Committee of the Red Cross recommends that cells be at least 5.4 m in size . Prison cells vary in size internationally from 2 m in Guinea to 12 m in Switzerland . </P> <P> In the United States, prison cells are usually about 6 by 8 feet in dimension, with steel or brick walls and one solid or barred door that locks from the outside . Many modern prison cells are pre-cast . Solid doors may have a window that allows the prisoner to be observed from the outside . </P> <P> Furnishings and fixtures inside the cell are constructed so that they cannot be easily broken, and are anchored to the walls or floor . Stainless steel lavatories and commodes are also used . This prevents vandalism or the making of weapons . </P>

What is the average size of a prison cell