A barrier constructed of spaced parallel components, usually steel, designed to manage entry whereas permitting visibility and airflow, is often known as a barred door. These buildings operate as a safety measure, offering a bodily impediment to unauthorized entry. An instance consists of the doorway to a holding cell inside a correctional facility.
The importance of such a barrier lies in its capability to discourage undesirable intrusion and keep safety. The open design permits surveillance, enabling personnel to observe the world behind the barrier with out obstruction. Traditionally, these obstacles have been utilized in varied settings the place confinement and remark are mandatory, from prisons and animal enclosures to banks and retail areas securing valuables.