Depending on the country of the manufacturer and the level of security, which can guarantee such a door, the cost of the product can vary from several hundred to several thousand dollars. But the most important rule is not to save on good doors, it can do very expensive. At the same time, a very reliable door without other precautions and safety measures will be a waste of money, because no one will go ahead, but will find the weakest place in the security system. Therefore, carefully analyze what you can do to increase the level of housing safety, and then choose a good door, which will be an excellent addition to the general security system.