The first metal doors appeared many centuries ago in Egypt. They were installed in the tombs of the pharaohs. They had such high strength that after centuries for archaeologists they became a real problem on the way to the sarcophagus of the pharaohs. Metal doors were common in Europe in the Middle Ages. These were huge and heavy constructions, such doors opened with more than one ten people, as they had great weight. The history of metal doors in Russia is not so great. Single orders, of course, were back in tsarist times. As always, the heads of state took care of their safety. Such doors were used in the construction of secret bunkers in case of terrorist acts, sabotage and natural disasters. The installation of doors in those days took a lot of time and took away a lot of effort from the installers. In those days, metal doors were not produced at all in Russia, they were brought from Europe, and Russian masters did not have the experience of installing. The second stage dates back to the middle of the 20th century. The first entrepreneurs appear in our country, there is a struggle for markets. Criminals are also preventing businessmen from living. There is an urgent need to protect yourself and your business. Metal entrance doors begin to install in the offices of companies, at enterprises and houses. But still massive such use could not be called massive. In 90-2000, a real boom suddenly arises. This can be explained both by severity from the point of view of the security of the time and the awareness of the reliability of metal doors. These doors begin to be installed everywhere, even in libraries, kindergartens, in dachas. However, the market of metal doors itself was then only at the initial stage of its development. In Russia, foreign companies mainly dominated both ordinary entrance and elite doors at very high prices. Especially a lot then on the market there was Chinese products that were not distinguished by high quality. The market for creating metal doors is currently flourishing. Russian manufacturers are gradually replacing foreign. Almost every city has several companies engaged in the production and installation of metal doors. Many of them seek to constantly improve their technologies and keep them secret. In this market, tough competition creates the need for manufacturers to take care of the quality of their products. Of the foreign manufacturers, only time -tested, both European and Asian. You can find many Chinese firms working in their unique technologies, and the quality of their products is not only inferior to European ones, but also in many ways surpasses, since the creation of metal doors in China was widespread much earlier than in Europe. There is now another trend in the development and improvement of products. Many wealthy people care not only about good protection and high quality, but also about an attractive appearance. Many firms are now beginning to create special collections of elite doors suitable for the style of housing for such customers. They are made according to individual drawings and taking into account all the requirements of the customer. Such entrance doors become the present decoration of the dwelling, emphasize the individuality.