Gap between double doors. Dimensions and equipment. Installing double doors: assembling the door frame

The planning and architectural solution of the details inside the premises intended for housing or office must meet many requirements. Sufficient width of door and window openings offers undeniable advantages, both in terms of aesthetics and usability. Their advantages attract numerous masters, namely:

convenience of a wide opening in use;
possibility visual magnification usable area;
the room acquires a pleasant design, aesthetic appearance.

Despite the fact that interior doors in a huge range are offered on the websites of the world's leading manufacturers, and they are exactly intended for a certain type of opening, there is an opinion that a regular opening can also be equipped with narrow interior swing double doors. This gives the simplest apartment a certain charm.

Benefits of double swing interior doors

The two-piece design was popular several centuries ago. Taking into account the specifics of the architecture of large-sized mansions, where the scale corresponded to the purpose and status of the owner, the two-leaf door proved to be excellent, and thanks to numerous benefits successfully migrated to our days. The popularity of this design solution in modern planning is evident due to the following indicators:

The vast majority of structural door solutions are equipped with a pendulum system, which allows you to comfortably open them in two directions. The reversal makes them comfortable and practical;
samples in some models consist of two identical one-piece canvases, others are decorated with decorative inserts from a wide variety of fabrics to improve aesthetics. finishing materials. It can be stained-glass windows, white and colored frosted glass and other solutions;
the room acquires a unique comfort and hospitality, beauty and sophistication, noble and solid appearance;
when decorating a room with non-standard architectural openings, a double-leaf door is the best option, which can be selected with amazing accuracy;
can be made in various price categories. These are models from natural wood, lined with veneer and panel. The latter can be hollow, completely filled and filled with honeycomb order;
use environmentally safe material, which is easy to process, moisture resistant and has good noise protection;
with proper design, they can perform the functions of dividing a large room.

Bi-fold doors are currently the best option for suburban construction, city apartments and office space various sizes and layouts. Due to its wide application, the problem of installation is relevant today. Installation and assembly are quite simple, they can be done independently with the most modest skills and experience. Therefore, recommendations on these issues will be very helpful.

Step-by-step assembly of double swing interior doors

If you have finally established yourself in the fact that your living space is most welcome double swing interior doors, fully consistent with the main design concept, and they suit the constructive type, then the exact step by step guide help you do everything excellent quality. Features of the work are in several stages, separating the processes of assembly and installation of the entire system. Product equipment with my own hands in the presence of modern instrument- the process is not complicated, but the work must be done carefully and painstakingly to get good result. In addition, installing it yourself is a solid savings and gaining experience.

The main parts of the installation process are:

installation of the box in the doorway;
marking and inserting door hinges;
actual installation of the door leaf;
sealing gaps in the structure;
finishing by attaching platbands.

In order for your work to be done with the appropriate quality, and the door ultimately does not creak with every movement, does not warp, is convenient when opening and closing, and performs all the functions that are assigned to it, you need certain materials and tools. You will definitely need mounting foam packaged in cylinders, sets of self-tapping screws for the box and anchor bolts, sets of plastic or wooden spacers and wedges designed for installation. From the tool you will need a set of screwdriver, screwdriver or drill, building level, chisels, miter box and a good wood saw.

Installing a box in a doorway

Being the most important point in the installation of the door, this stage requires the most attention, because a slight misalignment will greatly complicate all further work and its final quality. With the help of spacer wedges, the upper part of the box is firmly and most accurately fixed. The use of wedges must be paired, the loop side of the box must first be leveled, the accuracy of the planes is checked by the building level. Above and below you need to leave a gap of no more than five millimeters. After that, the lower part of the box is fixed, with wedges in the existing gaps in the corners. The final moment of installation - fastening anchor bolts to the slope.

Marking and inserting door hinges

At this stage of work, a chisel or a special cutter is used, with which it is very convenient and high-quality to mark and cut loops. It is worth remembering that special accuracy is required here - the hollow must fully correspond to the size of the loop. After a thorough check, the hinges are screwed on with screws, the legs are treated with machine oil, and for greater reliability, special graphite grease can be used.

Door leaf installation

With strict compliance with the instructions of the previous stages of work, this process will pass without difficulty. The purchased canvas is carefully hung on the hinges, several openings and closings are made to stabilize the position of the doorway. After the spacers are installed, from above - along the level of the hinge, from below - along the handle, check the door for spontaneous movement of the door. Fixing is not needed.

Closing gaps in structures

Completion of work installation interior doors double swing occurs when using mounting foam. She is as much as possible thin layer should fill the space separating the opening from the box. A little advice- in order to avoid contamination, it is necessary to close the door leaf with a film or glue it with construction tape. After twelve hours, when the film has dried and thickened, the excess can be cut off, like wedges.

Finishing the finish by attaching platbands

Installing the platbands completes the entire installation. To do this, you need to accurately measure the length of the platbands and with the help of tools - a hacksaw and a miter box, cuts are made. in the best way there will be a cut at an angle of 45 0 and fixing. Modern liquid or finish nails are the best option.

That's practically all, now you are privy to all, without exception, the intricacies of the door installation process, it has been successfully completed. You received precise instructions and learned exactly how to install interior doors easily and correctly. Independent work with the help of our instructions will be simple and will give you real pleasure.

Video - installation of double swing interior doors

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Swing installation double doors has its own subtleties and nuances in comparison with the installation of a single door. This article covers one of options such an installation. Why one of the possible? Because there are many master installers and everyone has their own preferences and unique experience. Everyone achieves their goal (well installed door) in their own ways. I invite you to get acquainted with the process given to me by my teachers and polished on my own mistakes.

Here is the opening ready for the doors.

As a rule, in typical apartments, a double-leaf door consists of two leaves 60 cm wide. In this case, the leaves will be 70 cm each. Which does not change anything during the installation process, just the upper box beam will be 20 cm wider than standard door out of sixty.

Here are the doors and moldings in the package. One of my favorite manufacturers is .

We unpack the doors, carefully check where the top is, where the bottom is, which side of the glass is matte and which is glossy, we determine which side where the doors will look in the opening.

Having decided which side where the doors will stand, we decide in which sash the crossbar will be installed, and in which handle. And we carefully sign everything, we glue the masking tape from the side of the loops with front side doors (on the opening side).

Carefully inspect each box beam. Let's start with the fact that they can generally turn out to be from different models doors that do not match each other in width and geometry. It also happens. Box timber, as a rule, is curved in one direction or another. Let the side bars be whatever you like, they are not difficult to pull out during installation. But let the upper beam bend up better than down. This will make clearance adjustment and installation easier.

Then we hang the second door and, adjusting its position relative to the first door, mark the position of the second beam and fix it.

To prevent the upper beam from being squeezed out with foam, its position can be fixed with a self-tapping screw. Or insert a 3 mm thick gasket over one of the doors and leave it for the foam to dry.

After making sure that the doors are exactly relative to each other, the gaps are observed and everything is in order, we foam the seams.

Before embedding the handles (a detailed article on this topic on), install the crossbar striker.

If there is a flashing, then it is nailed. Since if you stick it, you can knock it off by hitting it with your shoulder. It is convenient to first glue with quick-setting hot-melt adhesive, and then calmly add nails.

Sincerely, door installer, Sergey.

Installation of interior double doors has a number of features. First of all, this concerns the presence special tools, and in the second, technological features.

First you need to get acquainted with their division into types. It occurs according to the following parameters:

on general principle: can be hinged and sliding;
production material: aluminum, glass, plastic, MDF or wood;
by design: paneled, paneled glazed, deaf, massive.

Initially, you need to properly dismantle the old door. This applies primarily to the box and platbands. Dismantling is carried out using: an ax, a hammer and a pry bar.

It is important to remember that if old box must be kept intact, the procedure should be as follows:

removal of platbands;
cleaning from cement and foam;
removal of self-tapping screws, in the case when the beam was fixed with nails, they can also be carefully cut off with a grinder.

After removing the box, the remnants of leveling materials are removed from the doorway using a perforator. When the plaster is laid qualitatively, it has smooth surface, it can be left only by cleaning off the remnants of the mounting foam.

The next step in the installation is to take measurements. First you need to consider what kind of structure will be installed: sliding or swinging. After all, each of them has a number of opening features.

Sliding doors are well suited and fit into rooms with a small area. After all, due to them, space is significantly saved. To install them, you will need to purchase a special design, necessary work hinged doors.

Note: you can build a plasterboard box, where the doors will subsequently “go in” after opening. However, it will significantly reduce the space of the room that could be used for furniture.

The swing method of opening door panels is very popular. After all, it increases the level of sound insulation, in contrast to sliding door. However swing doors, occupy more space in the room and they need more free space for maneuvers. This type of door is most often installed in large rooms.

After the design of future doors is selected, you can proceed to measuring the existing opening. To subsequently decide whether it requires changes (reduction or increase). It is worth remembering here that the width of the box should be 110 mm less than the opening.

Under this type of door, the opening should already be wider than both leafs and another plus 100mm.

Assembly and installation of the door frame

Before proceeding with the collection of the box itself, it is required to verify the conformity of the beam, and if discrepancies are identified, adjust it to the required dimensions. Next, the procedure is as follows:

It is worth remembering: so that in the process of screwing in self-tapping screws, wooden elements remained intact, without cracks, immediately before this, drill a hole. Accordingly, if the diameter of the self-tapping screw is -3.5 mm, then the drill should have - 2.5 mm.

Box installation

Because how accurately the installation of the box was carried out, most of the operational qualities and subsequent right job the double door itself. This will require the use of a level with three eyes and wooden wedges.

Sequence of actions:

The assembled box must be placed in the opening. Use a level to level the structure. Here you will need to monitor not only the coincidence of the vertical lines, but also then, no matter what the edges of the box go beyond the opening itself.
After setting the box in all respects, it must be fixed. This is where wooden wedges come in handy.
Drilling holes for self-tapping screws in the box. In parallel, it is necessary to make marks on the wall.
Drilling holes in the wall according to the marks. To do this, you need to pull the box out of the opening.
Putting traffic jams and fixing the box in the opening.
Foaming of the remaining cracks.

Only after all this, the door is hung, the locks are inserted and the frame is framed.

Here everything goes much faster and easier:

The rollers are screwed to the door leafs.
Marking the height of the guides for the rollers.
Outlining, with the help of a level, lines. Fixing a bar on it (its thickness should be from 40 to 50 mm). He is screwed to the wall.
Installation of guides on the bar.
Door hanging.

Now you see that there is nothing difficult in installing any type of interior double doors.

Proper execution repair work guaranteed to provide comfort of living, combining functionality and decorative interior solutions. Installation of double-leaf interior doors is one of the milestones, aimed at isolating the room and giving a complete look to the design. The choice of design depends on the features of the layout and design preferences.

A practical solution for small spaces, or where there are wide interior openings, can become a double door model. Pick up suitable option won't be difficult. It is recommended to familiarize yourself with quality characteristics products and carefully weigh the pros and cons of the design.

Advantages of double-leaf products:

convenience and practicality;
a wide range of variations;
original stylish look;
provide a sufficient level of sound insulation;
the possibility of designing non-standard openings.

Bifold structures do not have pronounced disadvantages. It is important to take into account the features of the layout, the size of the room in order to avoid discomfort during operation. Quality installation hinged double doors will protect against the appearance of defects, ensuring the long-term operation of the product. The installation technology is not complicated, but is based on a certain sequence, which requires knowledge and skills.

Species diversity of structures

The design of the doorway can affect the design of the room as a whole, so it is very important to choose the best product. Initially, you should familiarize yourself with the types of structures double doors.

There are several general categories, which are distinguished by certain parameters:

The general principle of operation (oar, sliding, pendulum).
Production materials (wood, MDF, plastic, aluminum, glass).
Type of construction (paneled deaf, or with glazing, massive).

The door frame can be purchased, or made with your own hands. AT last version will need to take into account color solution canvases, platbands and boxes, choosing materials strictly in tone. The dimensions of the parts must correspond to the dimensions of the opening. The choice of fittings must necessarily take into account the direction of opening the door, which will protect in the future from difficulties during installation.

Preparatory stage: dismantling the old door

Installation of the design of double-leaf interior doors begins with the preparation of the opening and the dismantling of the old door. Before removing the box, remove the canvas from the hinges. For dismantling, you can use a crowbar, a hammer and a screwdriver. Next, the surfaces of the opening are cleaned from an unnecessary layer of cement, mounting foam.

In case you need to expand the space, a puncher or a grinder is used. The edges should be carefully leveled with plaster. You can reduce the opening by using lumber, drywall. At the stage when the dimensions correspond to the required dimensions, construction waste is removed.

High-quality installation of double-leaf interior doors is possible provided that the opening surface is smooth and even. Walls should also be on stage finishing. Otherwise, the box will be adjusted to the bumps, and stand out from the plane.

Assembling the door frame and installing hinges on interior doors

Door leafs are often completed with a box and platbands. In this case, the assembly will not take much time. You only need to adjust the size of the racks, given the height floor covering. Dowels are inserted into the sections of the side racks to tighten the parts. Fastening is carried out using special corner brackets, which are installed in the recesses on back side box elements. The box is assembled in a horizontal position.

It is also important to prepare the grooves for the loops in advance, having previously made necessary measurements. It is easy to make recess cuts using a milling cutter or a chisel. Overhead products do not require insertion and are attached directly to the surface. Type and quality of loops plays important role to ensure ease of use of the door.

The process of installing loops has its own characteristics. The marking of the location of the parts is carried out, starting from the top of the canvas. The first indent is 25 cm, then 50 cm. Marks are made from the bottom edge according to the same principle. Next, attach a loop in the marking area and mark the lines with a pencil. The recess is cut against the grain of the wood and neatly aligned. After sizing all the details, the canopies are screwed with screws to the canvases and the box of interior doors with their own hands.

The door frame in the opening can be installed in two ways: with or without hanging canvases. In order to avoid damage or contamination of surfaces, it is recommended to protect the construction details masking tape, or film.

It is also important to check the level of the floor. Permissible difference in the height deviation of the racks is 3 mm. It is not difficult to measure the indicators, you will need to set the building level inside the opening and make marks. Having determined the difference, you can use the resulting figures as a guideline for subsequent measurements.

Stages of work:

installation of a rack with an upper crossbar;
alignment is performed.
the details of the box are bursting with wedges;
the verticality of the rack is re-checked;
the second rack is installed in the same way;
irregularities are eliminated, adjustment is made according to the level;
the block is fixed in the opening with self-tapping screws.

The door frame can be fixed special composition"liquid Nails". Glue is applied to the surface of the frame and reinforced in the opening with spacers. To avoid scratches and damage, it is recommended to place a cloth under the spacers. This option does not require holes in the box for fixing to the wall.

As a result installation work installed frame must adopt the correct strictly vertical position. You can control the installation using laser level, or building plumb.

Eliminate gaps

Doorways can be custom sizes. In this case, installing the doors with your own hands, you will need to make additional work to match the frame perfectly. It is possible to achieve the required gap width of no more than 20 cm for foaming using fiberboard sheets, drywall, solid wood, or mounting timber.

Exceeding the width of the opening on both sides by more than 4 cm will require the use of a door with an extension, due to the impossibility of closing the gaps with platbands. Making dobors usually does not cause difficulties. Used veneer, MDF, or fiberboard, solid wood. Additional parts are attached to the box frame before installation. With the help of extensions, it is also possible to hide wall defects and irregularities.

Installation of double doors

Starting the process of fixing and hanging canvases, you should initially install the crossbar. This part is a pin for locking the fixed door leaf. The task must be completed in a certain sequence.

Initially, marking will be required. Next, a hole is drilled (3-4 mm less than the thickness of the pin) at a slight angle. Reach required size groove can be using carpentry tools. In conclusion, the crossbar is inserted into the hole and carefully fixed with screws.

Do-it-yourself installation of double-leaf interior doors will require special attention to hanging and fitting canvases. Even small errors can lead to unpleasant consequences in the form of distortions and the inability to operate the door.

Installation of the double-leaf door structure is carried out in stages. First, the first canvas is hung. If the door does not close freely, the grooves deepen. Too free play can be corrected by placing sheets of cardboard under the hinges. The second door leaf is installed in a similar way.

Full fastening of the hinges with screws is carried out only after the elimination of defects and adjustment the right move canvases. To avoid shifts of the box during the fitting of the canvases, the use of wedges, wooden linings will help.

You should also pay attention to the level of humidity in the room. The microclimate of the room should be stable and dry. Before carrying out installation work, all repair processes with increased level humidity must be completed. During or after installation, it is not recommended to prime surfaces, glue wallpaper. It is important to pay attention to the degree of moisture resistance new door. It is better to remove the door leafs after installation, covering the frame with a film.

Foaming process

Correct installation hinged double doors necessarily involves the process of foaming. Before carrying out this operation, it is important to careful preparation construction surfaces. Mounting foam in case of contact with the decorative outer layer of the parts, it must be removed, which can damage the coating.

The box is carefully pasted over with masking tape, or a film. Next, the voids are foamed between the plane of the opening and the frame. For the next 2-3 hours, it is not recommended to operate the doors until the foam is completely dry. When choosing a composition, you should pay attention to the expansion coefficient, in order to avoid deformation of the door frame. At the end of the installation work, platbands are installed.

lock inset

Do-it-yourself installation of a double-leaf door at the final stage involves inserting a lock. At this stage, you will need to accurate calculations and do fine work. Even small errors will lead to jamming and further damage. Reinstalling the lock can spoil the appearance door leaf.

Additional complexity is caused by the work on the canopy, which makes it difficult to make the necessary compatibility of the locking and mating parts of the lock. Sequence of work:

body parts are superimposed on the surface of the canvas and circled;
a groove of the required depth is created;
installation of the lock body (the bar should be at the level of the plane of the end face).

High-quality installation of interior doors requires certain knowledge and skills. In the case of doing the work with your own hands, it is important to take into account the main stages of the technology and the recommendations of specialists. Stylish doors will speak original decoration interior and give comfort. Properly executed installation of the structure will ensure durable and comfortable operation.

Installation of double interior doors may be needed both in apartments and cottages. Two doors look beautiful at the entrance to the living room. Installation of a door with two canvases is somewhat different from models with one. To please the design long years, it is required to take measurements, properly prepare and perform a number of works related to installation.

The installation of double-leaf interior doors cannot go without taking measurements. But in order to find out the dimensions of the doorway, you need to dismantle the old canvas and remove the moving elements decorative coating off the wall.

If the opening is empty, three values must be determined:

Height - measured in two places. To do this, the tape measure is applied near the left and right slopes.
Width - this parameter must be measured in three places: near the threshold, at a height of 80-100 cm and near the upper lintel.
Depth is an optional parameter for measurement. However, with knowledge of the width of the walls, it is more convenient to choose a box. It is measured in three places, like the width.

If there are differences when taking measurements, additional preparation of the passage is required. Depending on the dimensions, a double-leaf design is selected.

Tools for the job

Before installing a new door, you need to prepare expendable materials and tools:

building level, tape measure;
wood saw;
screwdriver, bits;
drill, wood drills;
mounting foam, self-tapping screws, anchors;
chisel, mount, hammer, screwdrivers;
miter or hand circular saw;
manual milling machine.

Before purchasing the doors and the box, you need to check the complete set. The doors must be accompanied by platbands. If they are not available, you need to purchase two sets (for both sides of the aisle). At big thickness walls, you need to buy additional trims.

Step-by-step installation of a swing structure

Do-it-yourself installation of double-leaf interior doors takes place in several stages. Installation can be carried out by anyone if he carefully follows the instructions and listens to the advice of the builders.

Dismantling the old door

First of all, it is necessary to dismantle the old box with the canvas, if it is in the aisle. To do this, you need a mount, a hammer, a chisel, a hacksaw for wood.

Procedure:

The first step is to remove the old canvas from the hinges. If the door is new, the opening mechanisms will be fixed with self-tapping screws. They need to be unscrewed with a screwdriver or screwdriver. Old canvases are removed with a mount. To do this, you need to make a lever so that one end of the tool is under the canvas, and the other is at the top. You need to slowly press on upper part pry bars so that the canvas goes up and off the hinges.
After removing the canvas, you need to tear off the platbands and extensions. To do this, you need a chisel and a hammer. With a chisel, you need to pick up the edge of the wooden plank and hammer it under the casing with hammer blows. Pull on the handle of the chisel so that the wooden plank comes off. Plastic architraves removed with a knife or sharp blade.
When the platbands, extensions and canvas are removed, you need to dismantle the box. With a hacksaw on a tree, you need to cut the right or left slope. Move the sawn parts to the sides and pull out the fasteners with a pry bar.

When the box with the canvas is dismantled, it is required to check the working surfaces for defects. Fragile parts must be knocked down with a hammer, moving parts must be removed. Check the perimeter of the passage with a building level. If there are height differences, then they need to be leveled using putty. Conduct further work possible only after receiving flat surfaces and equal diagonals.

Important! We must not forget about the technological gap that must be present between the box and the walls. Its size is 2-3 cm.

Assembling the door frame

AT construction stores you can buy ready-made kits for assembly door system. It includes parts of the box, sashes, extensions and platbands. In addition to this, there are fasteners, documentation and instructions.

First of all, it is necessary to transfer the height of the door leaf to the details of the box. When marking, it is required to take into account the angle of 45 degrees. To create it, you need to use miter saw. In its absence, you can use a miter box and a hacksaw for metal. Separate parts of the frame must be connected with self-tapping screws.

Installation of hinges on interior doors

To install the hinges, you need to cut the grooves. Opening elements must be attached to the end of the canvas 20 cm below its beginning. Next - circle the loop with a pencil. Repeat the same at the bottom of the door. To a certain depth (depending on the size of the loops), grooves are selected in the canvas. This can be done using a chisel or a manual milling machine.

When the grooves are ready, you need to mark the holes for fastening the screws on the box and canvas. The groove must also be made on the box. Hinges are installed on the slopes, and a crossbar is installed on the canvas.

Installation of the box in the doorway

After preparing the opening, fastening the box and fixing the opening mechanisms, it is required to mount the box in the opening. To do this, it must be lifted and inserted into the passage. With the help of the building level, slopes are set.

Important! In addition to controlling the level of verticals, it is necessary to ensure that the box does not go beyond the horizontal passage. To do this, you need to use a plumb line.

After leveling, it is required to fix the structure with wedges. Holes for mounting anchors are drilled in the box. After drilling the tree, you need to switch the drill to impact mode and make holes in the walls. Fix the box with anchors. After fixing the box, you need to foam the empty spaces between the box and the walls with mounting foam.

When the foam hardens, you can make holes in the canvases for fittings and hang them on hinges. To hide the foam, you need to fix the trim. This can be done with a hammer and finishing nails. Plastic platbands are fixed with sealant or liquid nails. Liquid nails can be used to secure wooden slats.

Necessary adjustments

Now you know how to properly install interior double doors. After installation, you need to check how they close and open. If extraneous sounds are heard or the canvases cling to each other, an adjustment is required. First of all, you need to lubricate the moving parts with engine oil. Fasteners (self-tapping screws, anchors) need to be sunk deeper so that the canvas does not touch them when closing. Extraneous sounds should disappear.

If there are problems with closing (the canvas clings or is unevenly located), the hinges need to be adjusted. The new opening mechanisms have holes for the hex. With this key, you can change the position of the sash horizontally and vertically.

Features of the installation of a sliding structure

For double doors, the "coupe" option is often used. Sliding designs allow you to save space in the room and look beautiful. The doors open into different sides- look more interesting than the usual swing canvases.

The assembly and installation of compartment doors is completely different from the previous version. First of all, you need to buy canvases and an opening mechanism.

Installation steps:

First, a false box is installed on the doorway.
It is necessary to fix the guide rails along which the canvases will move.
Rollers are fixed to the upper ends of the doors, with the help of which movement will occur.
Before hanging the canvases on the guide rails, it is necessary to install fittings on them. It can be a lock or handles for convenience.
After installing the fittings, you can fix the rollers in the grooves located on the guide rails.
It is necessary to fix the travel limiters. They are installed at both ends that guide the rail and prevent the web from falling out of the grooves. To prevent the doors from staggering when moving, it is required to fix the flag roller on the floor.

Install sliding system need two. It will be difficult and inconvenient for one person to fix the canvases on the guide rails.

When installing the doors and rails, it is required to leave 1.5 cm of free space between the doors and the floor.

Adjustment

After assembling the sliding doors, adjustment is required. The sliding mechanism has fixing bolts and brackets with screws to change the position of the canvas. When clamping the brackets, you can raise it higher, and when loosening, you can lower it. In this way both sides of the door can be adjusted. If there are problems with closing the sashes, you need to check the guide elements. Perhaps the fasteners prevent the rollers from moving freely.

You can order compartment doors with a false wall from door masters. Thus, when opening openings, they will hide inside the wall, which looks even more interesting and completely saves space.

Interior swing doors are not as difficult to install as it might seem at first glance. To independently carry out the installation, you need to properly prepare the passage, take measurements and follow the proposed procedure. Mounting sliding design occurs in the same sequence, only the mechanism is installed differently.

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