The main distinguishing feature of double-leaf doors is the design, consisting of two wings. For their production, a steel profile with high strength and resistance to burglary is used. Simultaneous operation of the doors is possible, while both they and the box itself can have different dimensions. The most widespread is a double-leaf door, in which one leaf is large and acts as the main one, the other is fixed with a latch and used as needed, for example, to take out large furniture.
Application areas
Such iron doors are most often found in public spaces, in production, as well as in entrances and corridors with high traffic. Their use is rational in educational institutions and clinics.
The classic version is produced in the form of a design of three elements: doors and a box. The fireproof and thermal insulation performance is achieved by using a steel profile and other fireproof materials that provide protection from overheating and deformation.
Doordouble floor metal is installed both in multi-apartment buildings and in commercial premises to increase the safety of being in them. It allows you to quickly evacuate residents and at the same time reduces the speed of the spread of fire.
Finish
Previously, exterior design was limited to a featureless metal canvas, suitable only for industrial premises. Currently, the assortment of stores presents various options covered with powder paint. Nitroenamel not only protects the surface from corrosion, but also gives an original look. There are also models supplemented with materials such as MDF and laminate. Double-sided fire doors can have decorative forged elements, be made with or without glazing.
The main task of such structures is to prevent the spread of fire to other rooms, thanks to which people can freely get out of the burning building. Other features worth noting include:
- resistance to deformation changes and impact damage;
- in case of fire, there is no possibility of a sharp increase in the temperature level in neighboring rooms;
- significant reduction in the amount of passing smoke and burning;
- fire resistant.
Now iron doors, the average cost of which is in the range of 15-20 thousand rubles, have become widespread due to many advantages and high decorative characteristics. Despite the diversityoptions, the choice does not cause any particular difficulties, it should also be noted easy installation, which requires minimal relevant skills and knowledge of the stages of work. Difficulties may arise with the installation of a mortise lock, as this requires maximum care.
Pros and cons
The main advantage is comfortable operation. Bilateral opening, which does not require noticeable effort, is provided by a pendulum system. External execution will make the room more comfortable and hospitable, while it is presented in an extensive design variety. The double-leaf door, the price of which depends on the materials used, is best suited for non-standard openings, while single-leaf doors often have to be made to order.
Such interior doors are not always convenient in small spaces, as in this case their operation is difficult. For a small apartment, sliding options are best suited, featuring a smooth and silent mechanism.
Varieties
Before purchasing, you need to decide on the desired look. There are two main structural designs - these are sliding and swinging. The canvas can be massive, deaf paneled or glazed. Materials for production are MDF, plastic, wood, glass and aluminum.
Double door: installation rules
Preparation for door installation includes dismantlingold construction, in some cases requires changes to the place for future location. The door frame can be purchased together with the canvas or you can make it yourself. Its dimensions must correspond to the available space, the width should not exceed the thickness of the walls, if the box does not reach the outer surfaces of the wall, the gaps can be closed with extensions. The height of the opening and structure must also be verified in advance. When buying a hinge, it is important to decide on the appropriate opening side, this will prevent difficulties at the final stage of work.
Cost
Double-leaf door is presented in an extensive price range, the cost is greatly influenced by the material used. Structures made of precious woods are in the highest segment. Options from MDF and chipboard will cost significantly less. Also, the final price depends on the type of lock and the availability of additional elements.
Economy options have gained enough popularity, but their availability is achieved by various tricks used by manufacturers to reduce manufacturing costs. A double-leaf door of this category has internal voids, thus reducing the amount of materials used and, as a result, the cost of the product.
Also, the surface can be treated with artificial turf. Often, a thin top layer of wood is replaced with an artificial veneer, that is, a laminated coating.
