How to choose the entrance steel door: home security

The main goal of each steel entrance door is to ensure maximum security of the room. It must prevent intruders from entering the premises and must protect your home or office from aggressive environmental influences. Before answering the question of how to choose it, let's look at the classification.

1. A professional thief or specialist cannot open it using physical force and simple tools.
2. A person with professional skills cannot open it using any tools, except for special electric tools.
3. A professional cannot open it using tools, including electrical ones, with a power of up to 500 watts.
4. She is obliged to provide protection against any type of small arms.

In order to decide which one to choose, it must have a number of properties in order to correspond at least to the first classification item:

• by its construction, it is obliged to be a framework of a special steel pipe;
• sheathing should be of two steel sheets, the thickness of which should be at least 2.5 millimeters each sheet;
• use of a steel corner is undesirable. It is hard to weld a second sheet to it;
• It must be equipped with at least two locks of different systems. One of these locks must be safe;
• it must be designed in such a way that the availability of locks and bolts is as difficult as possible.

Some doors have high demands. They are equipped with a metal grille, special inserts are made of durable materials that have anti-abrasive properties, etc.

• 1 Equipment
• 2 Main indicators

• 2.1 Locks
• 2.2 Seals and insulation
• 2.3 Loops

Equipment

Before you learn how to choose them, you should learn about the features and equipment.

Tip! At the base of each door is a special rectangular frame with internal stiffeners. This frame is welded from steel profile. On the frame itself is welded special steel sheets. Steel sheets should be at least two, otherwise, a door with one sheet can not protect your room.

Each set should include a minimum set of the following components:

1. Canvaswhose thickness must be at least 40 millimeters. The basis of the canvas should perform a steel sheet 2 millimeters thick. An outer segment of the flap that overlaps the frame must be present.
2. There must be hinges (see. Hinges for doors: their types and rules of choice) and locks.
3. The set must contain a special steel frame., configured so that it prevents the occurrence of drafts.

Main factors

Before you decide for yourself how to choose it, you need to know what basic indicators it should answer:

• it should be without deformation and distortions;
• it must be securely locked, which is ensured by two locks of different types (cylinder and lever (see. Door lock device: see in detail));
• must be equipped with an internal sealant (see Sealant for metal doors - protection against drafts), which must provide thermal and sound insulation;

Locks

Before you choose, pay close attention to her locks. Safety of the purchased door for 50-60% depends on the quality of the installed locks. The classic combination for the door is a pair - a lever lock safe and an additional (auxiliary) cylinder.

So:

• Suvaldny is a type whose work is provided by special metal plates, the so-called levers. The principle of operation is as follows. The key, interacting with levers, sets in motion special bolts. The bolts are steel parts of the castle, which have a cylindrical or rectangular shape. They, when moving, open or close it.

Reliability of the lock depends on the number and massiveness of bolts. The more of them, the more difficult they are to saw through or destroy in any other way.

Often, suvaldnye make safe - this is due to their power. The main advantage of suvaldnogo is its reliability. Of its minuses is only that it is possible to open it with a special master key.

• Cylinder is a structure in which the main working part is the cylinder, or, as the people call it “larva”. At the moment, such locks are made using laser or punched cards, which allows to achieve the uniqueness of the cylinder. The most common are the so-called pin-type cylinders. In such locks there is an interaction of pins of a certain shape, which are located inside the cylinder itself.

You can also find locks of various combined types. Recently, cylindrical type lever locks have gained popularity. They do an excellent job with the secret and power function.

Tip! When equipping your door with locks, pay attention to special armored panels. These pads are installed on top of the cylinder and provide additional protection, making it difficult to drill, fracture and knock out.

If you need more serious and reliable protection of the room, then install special locks on it with interchangeable code panels. Such panels are inserted after installation.

These panels are installed directly in your presence and after installation hand you a special sealed set of keys. Thus, you remain confident that no one except you are in contact with your keys. Also, you can equip it around the perimeter with additional bolts, or install an anchor system (anchors are special pins that prevent removal from loops).

In general, there are a lot of equipment options. Even an experienced specialist can get confused in all their diversity. Therefore, you can use the options offered by us. These are the most common and popular types of locks.

Tip! Remember that replacing a lock is a complex, costly process. Therefore, in any case, do not equip your doors with cheap, unreliable locks. This will not only lead to the early exit of such locks, but also put your room at an undesirable risk.

Seals and insulation

Answering the question how to choose a door, we should not forget about its warming. Remember that there should be insulation inside each!

This not only allows you to keep warm in the cold season. Insulated has good sound insulation properties (see. Sound insulation of entrance doors). Understanding the question of how to choose a door, you need to mention that one of the best materials for insulation is insulation with mineral wool.

These are environmentally friendly materials that have excellent sound insulation properties, are not susceptible to burning and do not emit, over time, harmful toxic substances. If you still have not figured out how to choose, pay attention to the fact that you need a reliable seal of the gaps between the door and the frame itself.

The most effective tool for this is concrete embedding. In order to ensure maximum thermal and noise insulation, be careful when installing it!

Hinges

In order to fully determine how to choose a door, pay attention to the hinges.

Loops are an essential element. Nevertheless, this is the most problematic area. After all, there is always the likelihood that the doors can be cut off in an elementary way.

In such cases, it is customary to install hidden hinges (see. Hinges for metal doors). Such loops are not visually accessible from the outside or from the inside.

Tip! The main thing you need to pay attention to when choosing hinges is the following: the hinges must have a thrust bearing or a support ball. This will ensure that there is no abrasion of the loops and their sinking.

Various door hardware

We are getting close to the answer to the question of how to choose the door. We turn our attention to the choice of the eye and the chain.

A chain is a special device that allows you to open it to a safe distance for a person in the room.

A classic chain is a device with a hook at the end of the chain known to you and many. The chain is mounted on a frame, and a special heck is installed on the canvas, with which the hook interacts.

Today, another version of the chain is gaining popularity. In appearance it resembles an oblong loop.

One part of this chain is attached to the box, and a special metal hook topped with a ball is attached to the box. Opening the door, the ball slides along the base, and does not allow it to open completely.

The peephole is an optical device that allows you to inspect the space in front of it without opening the door.

The main characteristics of the eye are the following parameters:

• the size of the peephole, the bigger it is, the better;
• minimum angle of view of the eye of 120 degrees;
• Optics glass optics better plastic.

Results

So, we are getting close to the final selection, in order to summarize all the above, let's list the main safety criteria:

• if possible, put two doors. One of the wood, the second metal (see the second entrance door to the apartment);
• in order for the door to not be knocked out, it must open to the outside;
• choose the lock carefully and do not save on it;
• equip your door with a metal chain or peephole;
• equip the doors with special outer trim;
• install strong hinges;
• maximally warm your door.

By following all the above tips and requirements, you can choose a solid, secure door. Remember that the only thing you should not save on is your safety.

In today's domestic market there are a lot of different options for registration. You can choose the one that not only ensures the safety of your premises, but also the one that will harmoniously fit into any, even the most sophisticated interior.

Modern doors are original works of building art. They are equipped with sophisticated locking systems, video eyes, and a gps-alert system on a mobile phone, if the door opens without the knowledge of the owner. Everyone can find one that will meet their requirements.