Doors on the front doors

This article discusses everything about door additional elements: their types and sizes, materials from which they are made and how to properly mount different types of this attribute.

What it is?

Often, when installing the doors, it is clear that for the completeness of the picture, only the canvas is not enough. It is necessary to complete the work so that the opening is brought to mind and looks the most aesthetically pleasing. To achieve this goal, entrance doors are used. Additional elements – construction in the shape of the letter “P”, consisting of three overlays – two vertical and horizontal. They are required to complete the installation of the door frame..


When choosing accessories for the entrance group, you need to know that they are divided into three types:

  1. Simple without edge. This is the easiest option. It looks like an untreated straight bar. The sections are hidden, but with changes in humidity, such a structure will not serve you for a long time..
  2. Simple with edge. When choosing such accessories, all edges will be covered with an edge that will protect the material from moisture. When using these two types of extensions, the structural elements must be perfectly fitted, otherwise part of the coating will have to be cut.
  3. Telescopic. They are the most comfortable and the most versatile of all. The reason for this is that the “groove + comb” system is used in the manufacture, which allows the use of panels of absolutely any size in work..

Materials (edit)

These fixtures are made from materials such as fiberboard or laminated board, metal and wood. If you choose an element for a metal door, you should give preference to wooden accessories. In combination, this will create a reliable and beautiful design. PVC platbands are used only with doors of the same material, otherwise there will be a noticeable inconsistency of materials in the interior.


Dobras provide the following advantages for the door leaf:

  • Moisture resistance;
  • Resistance to physical influences;
  • Soundproofing;
  • Thermal insulation;
  • Possibility of self-assembly;
  • Fast installation speed;
  • There is no need for a putty to fix visible errors;
  • Large selection of colors;
  • Attractiveness;
  • Resistance to sagging of the door frame during operation;
  • Long-term operation.

Dimensions (edit)

The dimensions of the additional elements depend on the size of the doorway. The width of simple additional elements can vary from 10 to 20 centimeters. Most often, platbands with a width of 10, 12.15 and 20 cm are presented.But options are possible with an arbitrary, predetermined and required width for a certain opening.

The use of telescopic extensions allows you to tile any width of the wall opening. Although there are standards in the size of such extensions (90,120 and 150 millimeters), thanks to their peculiarities, such elements can be used to refine even the largest opening.

It is necessary to select the dimensions of the elements with special precision. Even a centimeter error can ruin all your work. It is better to take elements with a margin, because in the process of work it is easier to remove the “extra” size than to increase the missing millimeters.

Calculation of the number of elements

There are standards by which door manufacturers make doors. In Europe, the standard door height is 210 centimeters, while in Russia it is two meters. The extensions, respectively, must have the same length. And they can have different widths: from 5 to 55 centimeters. Quality wooden or MDF elements have a width of 10 millimeters.

It is difficult to select parts for private houses. They were built without regard to modern standards. This often makes it difficult to choose extensions of the required length and width..

Next, the question arises, how to calculate the number of elements. When calculating, it is necessary to take into account and know that:

  • During installation, the add-on will go a little deeper, respectively, its size will decrease;
  • The distance is measured with a tape measure between the edges of the door frame;
  • All measurements are checked in three places: left, top and right of the opening;
  • The working quantity will be the largest.

Here is an example of the calculation. The wall is 240 millimeters wide, the door frame 80 millimeters wide. This means that the addition is necessary in 160 millimeters. A blade with a width of 200 millimeters will suit you, the excess is removed with a saw or jigsaw.

Installation process

Each of the elements has its own installation features. Consider the installation of each type of addons:

Installation of ordinary add-ons

You can immediately notice that the cladding begins only after the foam has dried and the door leaf has been completely assembled. It is necessary to prepare the surface for cladding. To do this, you need to clear the foam from a place with a depth of about 1-2 centimeters behind the door frame.

The following is the installation process itself. The first to be prepared is the upper additional strip. First, it is filed along the length (if possible, you need to make the product slightly larger than the opening), then the width. To choose the correct width of the workpiece, you need to draw two marks on the inside with a pencil, using the wall as a guide. For high-quality work on cutting out a part, you will need a jigsaw with a wood saw installed on it. The top element is then ready to be reinstalled. But for the final installation, both side parts must be made. They fit in the same way as the top element..

You should also pay attention to the length of all elements..

There should be no gaps between all three extensions, while the upper part should be placed in a horizontal groove.

When all of the above has been done, you begin attaching this structure. To begin with, take wooden wedges or thick cardboard and wedge into the box and the opening. This is done in order to get rid of the gap between them..

Next, the evenness of the installation of the addition is checked. In this case, it is necessary to check all the gaps: at the joints of the elements, do not forget to check the bottom of the side parts. If necessary, we correct or wedge with various inserts.

After that, a low-pressure foam balloon is needed, when solidified, and we fill it with all visible voids. First, we fix the entire structure with foam, then we fill in all the voids. If you need to install the platbands, you will have to wait for the foam to dry completely.

Installation of telescopic extensions

This type of finishing elements must be installed in the presence of cracks and chips on the walls, and protruding wires can also be the reason. Thanks to them, aesthetics and tightness are achieved. Another factor may be the size – when the thickness of the wall is more than 140 millimeters, there is a need for such special panels with which you will close this gap..

When installing telescopic extensions, you need: an accurate eye, accuracy, attention to detail and slowness. There are three ways to mount them:

  • with the location of the upper bar between the side ones;
  • with the location of the upper bar above the side ones, the upper part “lies” on the sidewalls;
  • with sawing the joints of parts at an angle equal to 45 degrees.

The last method is the most difficult to implement, therefore, with the slightest uncertainty, you must either choose another option, or contact the specialists.

The installation process of such add-ons is similar to the installation of conventional add-ons. The manufacture of parts begins only after the box with the already hung door leaf is ready. It is necessary to wait until the foam is completely dry, remove the excess, “protruding” outward pieces of foam, and then proceed with the installation of additional elements. Their peculiarity lies in the fact that the width is regulated not by cutting the part, but by means of rails. The width of the additional shield is directly proportional to the number of rails..

The first step is to install slats around the entire perimeter of the door jamb. Only after checking the accuracy of the work performed can the second row be installed, if necessary, the third and fourth. Experienced craftsmen can assemble the finished structure entirely at once, but it is not worth taking risks during installation. It is much better to do this job slowly and carefully..

Horizontal and vertical elements must be carefully adjusted to eliminate possible gaps. You also need to pay attention when installing how tightly the ridges fit into the grooves. In the absence of density, additional cracks may appear over the driving of parts. Since this structure is not heavy in weight and it will not experience frequent mechanical stress, that is, there are two options for fastening structures: finishing nails or liquid nails.

Often you can face the situation that the doorframe is far from perfect and there is a bias. But even in this case, you will be able to correctly and beautifully mount the extensions. If there is a bias, then during installation, the upper part will deviate from the side ones. With a deviation of 5 degrees or more, it is recommended to correct the misalignment and only then begin to mount the elements. When starting work with a skewed jamb over time, you can get additional gaps that ruin the entire interior..

If the skew is less than 5 degrees, then you can install the extensions with the subsequent filling of the walls. But in both cases, it is necessary to observe the evenness and align everything with wedges. After installation, you need to ensure the elements are motionless for a while. Fixation is carried out with construction tape. Also spacers are placed between the side rails, and so that the structure does not move. The gaps are necessarily foamed. To do this, you need a can of polyurethane foam and a knife. We introduce foam. Then we wait until it hardens, after which the excess is cut out with a knife. It must be removed carefully, flush with the wall.

Beautiful examples in the interior

There are some points you need to pay attention to when choosing such elements. First, the finishing blocks must match the color, pattern and texture of the door and doorway. Otherwise, an attempt will be made to combine the incongruous. It will also ruin your brand new door experience..

The color of the parts is selected:

  • the color of the doors;
  • to match the baseboards;
  • in the color of the walls;
  • or to highlight the doors, add-ons of a contrasting color are used.

When choosing finishing elements, you should rely only on your stylistic preferences. After all, combining high-tech and elements of ancient Russian architecture is at least illogical and unaesthetic.

You will learn more about how to install extensions on entrance doors from the following video..

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