Classes of metal doors

For owners of apartments in which there is something valuable, one day the question arises of strengthening their home. The most obvious and simple solution in such a situation will be the installation of a reliable door. There are a lot of varieties of metal entrance doors and it is quite difficult to immediately navigate in all this diversity. What type of steel door to choose, how they differ to these questions will be given answers in this article.

Content:

Characteristics of input metal doors

All metal doors, regardless of their class, are much stronger and safer than wooden. This truth is not disputed by anyone. But among themselves, they differ quite strongly in characteristics.

The main ones can be considered:

safety means how long a metal door can withstand attempts to hack it;
comfort, in addition to protective properties, steel doors are also chosen for such qualities as excellent sound insulation and fire protection;
reliability is the quality of any metal door is determined by its operational period, ease of use and protection against breakdowns;
aesthetics is another property in accordance with which a choice is made, because it will be in his house or apartment, which means it must be in harmony with the interior.

All the above qualities are important when choosing a metal door. But very often one of them prevails over the rest, and some is practically absent.

Properties of metal doors

All metal doors are made of high -strength and stainless materials. Basically, their production uses a cold doped steel.

The internal design of the doors is very similar to each other in all classes. It is a door leaf consisting of a metal frame, which is made of iron corners, a steel bent profile, the same profile pipes. Then, even steel sheets are welded to the finished frame, and the cavity between them is filled with various gaskets. It can be foam rubber, foamye plates, mineral wool or natural wood. All-metal doors are rarely made, usually in cases where they are used to protect the seaf room and rooms such as banking storage, box office, etc. These doors are called armored. The thickness of the metal that is used in steel doors is different.

The structure of the metal door

1 exterior decoration of the door; 2 steel sheet; 3 heat and soundproofing material; 4 frame of the door from a metal profile; 5 steel sheet; 6 decoration of the inside of the door leaf; 7 platband; 8 enhanced box from steel profile; 9 eye; 10 accessories; 11 loops; 12 locks; 13 internal valve; 14 castles; 15 rubber seal; 16 anchors.

The loops in steel doors are made using special technologies. They must comply with the requirement to hold the large weight. The door frame is one of the largest parts, not counting the door leaf. The closing device in metal doors is located in a protective pocket, this is done in order to increase protection and increase reliability before some hacking methods. A mandatory detail of the steel door is considered the ribs of stiffness, which support the shape of the door and do not allow it to deform from the blows.

The basis of any metal door is a special profile and a sheet made of steel is the structural elements responsible for strength and reliability. For comfort and sound insulation, the seal used inside the door leaf. This component of the door also affects the retention of heat inside the apartment.

The main stages of installation

The tools necessary when installing a metal door:

measuring devices (roulette, level);
a hammer;
electric drill;
a set of keys and a screwdriver.

The stages of installation can be divided into the following actions:

preparation of the opening, which consists in removing interfering pieces of solution and other garbage;
installation of the door in the opening that was prepared in advance;
fixation of the frame in level. To do this, you will need wedges that are installed between the steel frame and the wall;
then, with the help of an electric carrier, the perforator, holes in the wall for anchor bolts are made;

insertion of anchor bolts, and their fixation with nuts;
filling with foam or a special solution of cracks between the frame and the wall;

removing the protective coating door from the canvas.

According to the price criterion, the doors are divided into economy class - cheap, premium class - expensive and high -quality and elite are the most expensive and exclusive.

Metal doors of the economy class

The economy class includes metal doors, the main task of which is to protect the house or apartment in combination with a slight price. They are distinguished by a simplified design and lower quality. Savings on the external decoration allows you to reduce the cost of such a metal door. Most often, powder coloring, inexpensive laminate and other cheap materials are used, but despite this, the door may look rather worthy.

Due to their technology for their production, this group of doors has good sound insulation, heat -preserving and blocks the hit of unpleasant odors. Chinese metal -class metal doors are available for a wide range of consumers.

Premium metal doors

The premium class combines steel doors characterized by the following features: designed design, high quality of structural elements and the corresponding high price. When decorating these doors, more expensive materials are used - this is a high -quality lining, complex powder color, expensive laminate. Premium steel doors wear out less, provide greater safety and have a designed design.

Elite metal doors

Elite doors are very expensive, as they make them from expensive materials. In their production, only high -quality locks and accessories from the best manufacturers are used. An excellent design developed in accordance with the interior of the customer are signs of the highest door group in the cost. In such doors, natural materials, expensive finishes, additional armored lining are used to the maximum. Elite doors are usually available only for wealthy people.

Separately, in this list are doors made by non -professionals, in the so -called artisanal way. They are sometimes offered by people's craftsmen. They are made in garages, using a welding machine and a disk saw. They are made of very thick and cheap metal, but do not contain seals and layers that would increase sound insulation.

Than to be guided when choosing a metal door

Choosing a steel door for himself, a person focuses on such indicators and factors as price, resistance to hacking, durability, cost of maintenance, external attractiveness, ease of use, heat resistance, sound and thermal insulation. But the importance of these factors varies depending on where the door will be installed, and what amount is at the disposal for its acquisition.

Steel doors that are suitable for a person according to most characteristics can be too expensive. The reverse situation will lead to the acquisition of an unreliable metal door. All manufacturers say that their metal doors are reliable and racks for hacking. But in fact, the difference between the opening time of the metal door is an inexpensive and expensive category, necessary for a professional, is about 6 minutes. The simplest metal doors in this regard open in just a couple of minutes, and considered impregnable for 8. And the difference in price is from ten to twenty thousand rubles. So how to make the right choice?

The best method of protecting the thief is the installation in addition to the door of the apartment alarm.

From the time of the response of employees of the security agency, one should be borne when choosing a door by the criterion of resistance to hacking it should be enough for the timely appearance of the security.

If the main criterion is the appearance of the door, then it is best to focus on the interior and the atmosphere of your apartment and the harmony of the door with the facade of the building. In this case, the place will be the use of combined cladding and a detailed design of the design. These services today are provided by many enterprises involved in the manufacture of steel doors on a professional basis.

Official division of locks for metal doors into classes

The door lock is another important detail of the design of the steel door, which is characteristic of absolutely all of their types. The classification of metal doors according to the degree of safety depends on the installed lock. According to GOST 5089-97, which is called locks and latches for doors, the state set four classes of locks.

Consider them in more detail:

the first class includes locking devices that have very low characteristics of resistance to hacking. It is believed that they do not represent any obstacles to the theft due to low strength qualities;

court mechanisms are suitable for the second class, in which the security characteristics are at the usual level, and the strength properties are below the average. GOST set the time that is necessary to open such a lock without keys. It is about five minutes;
the third variety of castles has the highest security qualities and the average strength of the materials included in them. A certain time of their hacking is ten minutes;
the last variety is fourth grade. They have high security properties, are made of particularly durable materials and resist an autopsy for about half an hour.

When determining the opening time, the time of the work of a high -class cracker with a special tool was meant. An ordinary person rarely manages to open even the castle of the second or first class.

Classification of doors according to the degree of safety, by type of coating and in dimensions

Classification by degree of security

By analogy with the classes of locks, metal doors are also distinguished. By the properties of reliability and resistance to hacking, they can be divided into three categories:

normal in them are installed locks of grades 3-4 and locking devices and obstacles. These include metal inputs of economy class;
reinforced steel doors also contain clips of grades 3-4 inside, equipped with locks, which do not allow them to remove them, the loops of such doors are reinforced, and the perimeter is closed with multi-trigel locks. Most often, premium -class entrance doors have such protection;
protective metal doors have the properties of previous species, but additionally prevent opening with spin, extrusion and other similar moments.

Classification by type of coating

If we consider the classification of doors according to the type of coating, then they can be divided into the following groups.

Metal doors having a transfer coating. It provides a more attractive appearance, being bright and aesthetic. Often this type of coating imitates others. Great for use in places protected from moisture and sun.

Teflon coating has a black color, which gives the door a strict and restrained look. This coating material is practically not subject to scratches and does not fade under the influence of ultraviolet radiation. Teflon is an excellent door coating that are installed in country houses and contact with the street.

Car coverage. A special technology that helps to achieve a balance between quality and external attractiveness. These doors can be placed in apartments and houses.

Hammer-transferial coating on the one hand is faced with a hammer in a hammer that gives it resistance to scratches, chips, etc. From the home of the dwelling, the coating is transferred, which allows you to choose it in accordance with the interior.

Dimensions and methods of opening metal doors

Doors dimensions are also taken into account during their classification. Distinguish the standard dimensions and doors made to order.

By the number of locks, metal doors are divided into single and two-point. Elite doors are usually made with two locks or more.

According to the method of opening, the doors are divided into right -sided and left -handed. There are doors that open 90 degrees, others can be opened by 180.

What to look for when choosing metal doors

On average, the size of the door frame is 2000x800 mm, which does not always correspond to the Ramer of the doorway in a particular case. Therefore, first, the height and width of the opening are measured, and only then is bought or (with a non -standard size) door is ordered;
thermal insulation in the door leaf should be made of foam or mineral wool, and rubber seals are installed around the perimeter. Often you can stumble on the trick of the manufacturer when he writes that the door has water insulation on both sides. This means that under the lining in both sides there is a layer of vatin with a thickness of only 5 mm, which is clearly not enough for heat and sound insulation;

when buying cheap Chinese, economy class metal doors to the base cost include only the black color of the finishing coating. It should be borne in mind that you will have to pay extra for any other color;
the locks installed on it are also indicated about the quality of the door. The most budget models are equipped with two types of locks upper and lower Mosrentgen brown. At the same time, more expensive and presentable models are always placed in advertising photography. Both of these castles are very popular because of their low price, but they do not provide the necessary protection against hacking;
the next thing you need to pay attention to is the thickness of the door frame, on which the heat and noise insulation of the apartment or house also depends. It is standard from one profile pipe 5x2.5 cm or reinforced with a thickness of 7.5 cm.

The cost of metal doors

As mentioned above, the difference in the price between the classes of the entrance doors is very significant. But with a competent choice, you can buy a strong and reliable door even for little money.

The price of a metal -class metal door

But if there is a desire to buy not only a reliable, but also an exclusive and luxurious thing, then you should dwell on elite doors.

For industrial and storage facilities, technical metal -class metal doors are used.

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Classes of metal doors

Characteristics of input metal doors

Properties of metal doors

The structure of the metal door

The main stages of installation