The classification denotes protective barriers for doorways, typically found at a major home improvement retailer. These barriers are designed to allow ventilation while deterring unauthorized entry. The dimensions, 36 inches by 80 inches, specify the standard size suitable for many residential door frames. An example includes a steel mesh door purchased from a large chain, intended to increase home security.
Enhanced residential safety and peace of mind constitute primary advantages. Historically, such provisions have become increasingly relevant in response to rising concerns about property crime. The availability of standardized sizes simplifies installation and replacement for homeowners. Their presence represents a proactive measure to safeguard dwellings against intrusion.