Steel fire doors: characteristics

What is the feature of fire doors made of steel

Until recently, fragile wooden doors were used to protect the premises from uninvited guests, which were easy prey for attackers. Now, as entrance doors, steel doors presented in a wide range are increasingly used. Among them you can find both very worthy models and cheap products that do not meet the necessary requirements.

Very often we hear the concept of armored doors, for which ordinary steel doors are often issued. So that the door can be called armored, the thickness of the metal from which the door is made should be at least 6 mm.