Each interior door after installation needs a finishing touch - add-ons. This element allows you to give the design a complete look. Extras are planks that frame the door leaf. They close the slots that remain after installing the door. Even a novice master can install them. To do this, you need to consider how to install extensions on the interior doors. Detailed instructions will be presented later.
Why do we need extras?
Many beginning masters are interested in how to install an extension on the interior door of Tanganyika, Terra, Modern Nika and other popular models. This is a simple procedure. However, you should know some of the nuances of this work.
Why do we need extras? These are decorative boards that frame the door leaf. Two of them are vertical, and one is horizontal. They are designed to increase the space that the door frame can cover. It becomes larger, so all the flaws made during the installation of the door become invisible.
Extras are created from different materials. It can be natural wood, MDF, chipboard. Sometimes door manufacturers supply trims with the door leaf. However, sometimes they are purchased separately. Planks can be of different widths. In a room with thin walls, thin extensions will be appropriate, and in a room with thick partitions - wide. This indicator can vary from 8 to 55 cm.
Varieties
There are several varieties of add-ons. They can be without an edge. In this case, the ends of the board will not be protected by a layer of decorative film. A simple extension with an edge is protected by a special layer on all sides. There are also telescopic extensions. At their ends there are special grooves with which to fix.
The first two types of extensions are straight bars. They have even sections. Experts recommend installing extensions with an edge. Such products allow you to close the entire slice. In this case, the door will look beautiful and neat. If you select extras without an edge, it is likely that they will not completely close the cut.
Many owners are interested in how to install telescopic extensions on interior doors. This is a more modern type of board. They have a groove with which a tight mount is made, which does not require the use of additional materials. Dobor is connected to a door frame or platbands without glue.
Installation methods
Do-it-yourself installation of interior doors can be done in many ways. The design forms the letter "P". It can be attached in many ways. You can fix the boards directly to the door box or to the wall in the area of the opening. You can also install the slats on the mounting rail, which is located between the vertical sections of the opening and the extensions.
It is worth noting that during operation, the high load will not act on the straps. Nevertheless, in order for the extras to hold firmly in place, glue is often used. However, experts advise using self-tapping screws for these purposes.
Fixation with hardware is made on the front side. Therefore, it is important to deepen their hats. So the fastener will not be visible, will not interfere with the opening and closing of the door leaf. On top of the hat you need to close with special caps to match the add-ons or cover them with mastic.
Preparatory work
Having figured out what kind of add-ons can be, you can choose the best option for your door. It is necessary to determine which option was provided by the manufacturer for a particular model. It is worth noting that the installation of telescopic extensions on the interior doors is not always possible. We need grooves in which it will be possible to set the slats.
After a variety of extras is selected, you need to calculate the dimensions for each side. It is especially important to pay attention to their width. Subsequently, it will be impossible to correct this characteristic. To remove the length of the extensions is quite simple.
Next, you need to prepare the surface for installation. Excess foam must be cut with a knife. Also, all contaminants must be removed from the surface of the base. Otherwise, distortions may appear. Proper preparation of the surface ensures good adhesion to it. After that, you can proceed directly to the installation.
What else to consider before installation?
Studying the technology of how to install the interior doors yourself with the option, you should pay attention to the installation of decorative strips. Often, novice masters make mistakes during such work. By installing a box for the interior door, they can notice a significant skew. In this case, the add-on does not help. It is necessary to pay attention to the correction.
If the deviation of the upper bar in the horizontal plane is more than 5% of the total length, it will not be possible to install the extensions correctly. Of course, the master can fit the canvas under such a box. However, the presence of such a defect indicates serious errors made during installation.
To eliminate them, you will need to dismantle the entire structure. It is necessary to find out what exactly led to such a violation. Only by eliminating the error, it will be possible to establish add-ons. Otherwise, they will not improve the appearance of the door immediately after installation. During operation, they crack and deform. To prevent this situation, you need to pay attention to the exact installation of the structure.
Tools and materials
Studying recommendations on how to install an interior door on your own with an extension, you should pay attention to the correct choice of tools and materials. The success of the entire work will largely depend on this.
To perform all the manipulations quickly and correctly, you need to prepare a milling manual machine designed for working on wood. Be sure to prepare a manual parquet (circular) saw. In the course of work, a clamp is required. She should have a soft sheathing on the bed.
If there is no such material on the instrument, it is quite possible to fit it yourself. This will require several heat-shrinkable tubes. They are put on a tool and heated over a gas burner. It is necessary to keep the material at a distance from the flame of about 40-50 cm (not closer). Such tubes should be put on a clamp in 3 or more layers.
Also need stools of the same height. They should not stagger. Several wooden planks should be prepared. Their cross section may be 30x30 or 40x40. Several wedges are cut from the same slats. You will also need several strips of packaging plywood. Drywall strips will also work.
Beginning of work
To install doors for interior doors with your own hands, you need to follow the advice of specialists. The opening prepared for installation must be correctly marked. This procedure is called beating. To do this, you need to use the formula of Pythagoras. According to his theorem, in a right-angled triangle, as everyone knows from school, the sides relate as follows: 3x4x4.
It should be noted half the width of the opening. At the bottom, this segment is equal to 3. For example, the width of the opening is 70 cm. Half of it will be 35 cm. The base length is 11.6 cm. You need to make marks with the cord, starting from the corners. Each of them should be 5.83 cm from each corner. There should be a distance of 4 parts from the intersection of these points to the middle of the width. This line will be perpendicular to the plane of the box.
From this line, all further horizontal measurements can be carried out. Vertically, the plane of the opening can be checked with a plumb line. If there is no desire to carry out such calculations, it is worth using the laser level. This is an accurate instrument that will allow you to perform all measurements correctly.
What you should not do
Considering how to install add-ons on interior doors, it is worth paying attention to some mistakes made by novice masters.
Professional builders argue that it is impossible to use the carpentry triangle during the measurement. The error will be large. Therefore, the gap between the door frame and the sash can be large. It is better to use a calculation system or a laser level.
Uneven walls
Installation of add-ons on interior doors requires accurate measurements. In typical apartments, and in private houses, it is not uncommon for the walls to be uneven in the room. If over the entire height of the door the indicator does not deviate by more than 5 mm, this situation does not need to be corrected.
However, it often happens that the deviation at different points of the opening is greater. In this case, when cutting additional boards, it will be necessary to take this feature into account. In this case, they are cut to a wedge.
Installation on self-tapping screws
How to install extras on interior doors? Most often, owners of apartments and houses use self-tapping screws in the course of this work. This is a reliable fixation method. If the strips are not telescopic (do not have grooves), begin installation from the upper bar. It is necessary to measure its length and cut off the excess. Putting the board against the wall, you need to check everything again. Next, you can screw it to the wall.
After that, you can install the side boards. They are customized to fit. For each side of the opening, the length of the side strips may vary. Further, holes are drilled in the strips for self-tapping screws. A bar is applied to the wall and screwed to the wall.
After that, you need to seal the joints. Hats deepen into the material. For this, the holes are closed with plastic plugs. You can also just pick up a sealant in tone with the extras. They cover all the holes in the boards.
Telescopic extension
How to install telescopic type extensions on the interior door? This is a fairly simple procedure. Even with small errors, they can be masked. Telescopic slats allow you to do this. In this case, the installation procedure will take a minimum amount of time. To install telescopic extensions requires a minimum number of tools.
First, wall surfaces are prepared accordingly. After this, the strips are applied to the surface, once again checking the correctness of the measurements. Installation of the telescopic extension also begins with the upper bar. After that, the length of the sidewalls is measured. Surplus cut off.
The groove in the castle is introduced to such a depth that the plank can completely block the wall. Using a rubber mallet, you need to lightly tap on the joint surface. So the keys are better fixed. If the groove and the spike do not fit snugly together, they are loose, you need to use glue in the work. To do this, acquire liquid nails. After the additions are installed, it will be possible to proceed with the installation of platbands.
Glue application
Installation of add-ons on interior doors can be made without self-tapping screws or thorn-groove joints. In this case, the straps are fixed with glue. This is a quick procedure. The external side of the add-ons remains intact. This is especially important when installing MDF strips. When drilling holes, the top decorative layer may crack. In this case, the appearance of the extension will be damaged.
To avoid such troubles, you need to clean the opening of debris, foam, etc. Next, special glue is applied to the back of the bar. The bar is applied to the base. Then you need to wait until the composition dries. This option is quite simple. However, the base must be level. Otherwise, over time, in some places, the add-on will detach from the surface.
Having considered how to install add-ons on interior doors, you can perform all the actions yourself. The quality of the finished work will be high if the calculations are very accurate. A large error can lead to serious structural defects.