What are the modern market ready to offer? Particularly popular in our time are doors from durable hardened glass, as well as various kinds of door double -glazed windows, which are used not only inside the room, but also as a door for entering. Although the last option is excluded for our apartments — it is more likely to prefer the owners of country houses and cottages, where the territory itself is secure enough to afford the installation of a glass door to the input. However, inside the room of the door from the glass is real «kings of space»!