Entrance doors for apartments are special doors designed to be installed as the entrance opening to a residential apartment. They perform several functions such as providing security, protection against intrusion, preserving heat, and sound insulation. These doors typically have a reinforced structure and additional elements like locks, cylinders, and other security mechanisms. Entrance doors for apartments come in different types and styles to match various interior designs. They can be made from various materials such as metal, wood, glass, or their combinations. The choice of a suitable entrance door depends on the preferences of the apartment owner as well as requirements for security and aesthetic preferences.