Whatever it was, but the price will always determine the choice. But she, in turn, depends on the recruitment characteristics of a particular commodity. So, before you buy, is still to check with the seller, for which we pay and what the savings. Especially if the product will serve us for many years, such as the front door, plastic window, suspended ceiling or floor covering. But in that moment when you need to ask a question, many of us have somehow lost, as when answering a board. We offer a "cheat sheet for the buyer, which will clarify with the seller, whether it offers you. entrance door to deal with their peculiarities helped Ian , deputy director for development of production company's Inez. She advises the choice not to forget to specify some of the nuances.
From what made the door frame? It can be done from the U-shaped steel profile, but experts believe that this mode of production is not provide adequate design rigidity. Much higher than this figure when using the tube of rectangular cross section. Frame gives extra strength ribs – the number the more the better. How many metal sheets in a design? Typically, manufacturers offer a door, lined a single sheet of metal. The second may be set at will – this design is stronger, but heavier. However, experts say, for security important not only to the number of sheets, but the thickness of the material. In a truly secure door it should not be less than 2 mm.