A correctly installed interior door is always a source of pride, especially when the installation is done by yourself. If you don’t yet know how to quickly and correctly install a door, then nothing prevents you from doing it.
Have good doors and live well
Agree that any apartment is unthinkable without entrance and interior doors. Interior doors successfully combine and perform practical and aesthetic functions, limiting adjacent rooms in the apartment.
Being the “first” object of room design, interior doors, both single and double-leaf, give a stylish and complete look to the room. How to choose and install an interior double-leaf door correctly?
Design of interior double doors
Let's start with the fact that double-leaf interior doors differ somewhat from single-leaf doors, namely in the width of the opening. For double-leaf doors, the opening width ranges from 1300 to 1900 mm.
Double-leaf swing doors consist of two door leaves, united by a common door frame. Along the perimeter of the common block door frame the doors are framed with platbands.
No matter how carefully the interior double doors are installed, a gap of several millimeters will form between the panels. WITH outside Interior double-leaf doors, the gap is covered with decorative shutter strips. In some cases, one of the leaves of double-leaf doors is fixed with a door latch (end bolt) as required by operation.
Material for manufacturing double-leaf interior doors
The main (basic) materials in the manufacture of interior doors are:
plastic
melamine
tree
metal
veneer
MDF panels.
However, traditional materials used in the manufacture of interior doors are gradually giving way to more practical and inexpensive materials, such as melamine.
When choosing the material for the manufacture of interior doors, it is necessary to take into account the maximum load and functions of the doors, and, of course, the aesthetic component in general interior apartments.
Method for choosing door sizes
Sizing method interior door for subsequent installation takes into account certain technical features installation Therefore, before installing a double-leaf interior door, it would not hurt to make additional calculations.
Initially, the height and width of the door opening are measured, taking into account the existing curvature. The data obtained will help you correctly install the door yourself. These are the features to choose from:
When installing double-leaf interior doors, it is necessary to leave a technological gap between the door frame and the base of the opening. The gap should be approximately 15mm wide around the perimeter of the door frame, excluding the floor.
To avoid possible jamming due to humidity changes, it is also necessary to ensure a gap between the door leaf and the frame of about 5 mm.
Of course, when choosing a double-leaf interior door, you need to take into account the possibility finishing works on the floor plane near the door.
Door installation technology
Being in a zone of constant visibility and increased use, the quality of installation of double-leaf interior doors is given special importance. Thanks to numerous offers from manufacturers of interior doors and simplified model options, self-installation is allowed.
However, the procedure for installing an interior double-leaf door with your own hands requires phased implementation technological operations. Moreover, double-leaf interior doors, the sizes of which may differ from the prepared standard ones doorways in an apartment will require additional installation efforts.
Stages of installing an interior double door
Do-it-yourself installation of a double-leaf door consists of the following steps:
dismantling, if necessary, the old leaf and door frame
manual assembly of the door frame from the manufacturer
local door frame installation
installation of canopies
installing a bolt on a sash
hanging door leaves
installation and fixation of cash registers
checking the functionality of the door.
Dismantling the old door leaf begins with removing it from its hinges. Then the door frame is dismantled, followed by removal of fasteners and insulating materials. Having cleaned the door frame, you can begin manual assembly of the door frame. The door delivery kit includes assembly instructions. Take full advantage of it.
The assembly technology involves operations such as sawing and arranging elements, as well as installing canopies. The process of opening and closing the two sashes will depend on the quality installation of the canopies. Therefore, the first thing that needs to be done is to make the optimal installation of the hinge cards and the crossbar, if necessary.
Installing a door frame in place begins with its location using a plumb line or level. Fixation correct location boxes are carried out using anchor bolts and dowels. Due to the insignificant weight of the interior door, preference can be given to dowels and self-tapping screws. The frame is fixed at 6 points: 3 points on the hinge side of one sash and 3 points on the second sash.
To do this, mounting holes are drilled in the box elements. It is recommended to install wooden blocks between the elements of the frame and the doorway. To foam the resulting voids during installation of the box, polyurethane foam is used, which has a slight expansion coefficient when hardened.
When installing canopies, the locations on the sashes are initially determined and marked. These are the extreme upper and lower points on the sashes at a distance of 150 mm.
After installing and adjusting the canopies, they are fastened using screws 35 mm long. The counter elements of the canopies on the installation box are attached in the same way. Installed canopies must guarantee a technological gap between the door leaves and the frame. Having installed a double-leaf interior door yourself, it is necessary to check its functionality in order to eliminate marks.
After installing the door leaves, the platbands are installed and fixed around the perimeter of the entire door frame.
More detailed information on how to install a double-leaf interior door is presented in the video.
Proper execution repair work is guaranteed to provide comfortable living, combining functionality and decorativeness of interior solutions. Installation of double-leaf interior doors is one of the important stages, aimed at highlighting the room and giving a complete look to the design. The choice of design depends on the layout features and design preferences.
A practical solution for small rooms, or in the presence of wide interior openings, can become a double-leaf door model. Pick up suitable option won't be difficult. It is recommended to familiarize yourself with the quality characteristics of the products in advance and carefully weigh the pros and cons of the design.
Advantages of double-leaf products:
- convenience and practicality;
- wide range of variations;
- original stylish look;
- provide a sufficient level of sound insulation;
- possibility of designing non-standard openings.
Double-leaf structures do not have any obvious disadvantages. It is important to take into account the layout features and the size of the room in order to avoid discomfort during operation. High-quality installation of a double-leaf swing door will protect against the appearance of defects, ensuring long-term operation of the product. The installation technology is not complicated, but is based on a certain sequence that requires knowledge and skills.
Species diversity of designs
The design of a doorway can affect the design of the room as a whole, so it is very important to choose the optimally suitable product. Initially, you should familiarize yourself with the types of double-leaf door designs.
There are several general categories that are distinguished according to certain parameters:
- The general principle of operation (swing, sliding, pendulum).
- Manufacturing materials (wood, MDF, plastic, aluminum, glass).
- Type of construction (panelled solid, or glazed, massive).
The door frame can be purchased or made by yourself. In the latter option, you will need to take into account color scheme canvases, platbands and boxes, selecting materials strictly to match. The dimensions of the parts must correspond to the dimensions of the opening. The choice of fittings must take into account the direction of door opening, which will protect you from difficulties during installation in the future.
Preparatory stage: dismantling the old door
Installation of double-leaf interior doors begins with preparing the opening and dismantling the old door. Before removing the box, remove the fabric from its hinges. For dismantling, you can use a crowbar, hammer and screwdriver. Next, the surfaces of the opening are cleaned from the unnecessary layer of cement and polyurethane foam.
If you need to expand the space, use a hammer drill or grinder. The edges should be carefully leveled using plaster. You can reduce the opening by using lumber and 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 flat surface opening. The walls should also be at a stage finishing. Otherwise, the box will fit under the unevenness and stand out from the plane.
Assembling a door frame and installing hinges on interior doors
Door leaves are often equipped with a frame and trim. In this case, assembly will not take much time. You only need to adjust the size of the racks, taking into account the height flooring. Dowels are inserted into the sections of the side posts to tighten the parts. Fastening is carried out using special corner brackets, which are installed in the recesses on the back side of the box elements. The box is assembled in a horizontal position.
It is also important to prepare the grooves for the hinges in advance, having previously made the necessary measurements. Recess cuts are easy to make using a router or chisel. Overhead products do not require insertion and are attached directly to the surface. The type and quality of the hinges plays an important role in ensuring the ease of use of the door.
The process of installing hinges has its own characteristics. Marking the location of parts is done starting from the top of the canvas. The first indent is 25 cm, then 50 cm. Marks are made from the bottom edge using the same principle. Next, place the loop in the marking area and mark the lines with a pencil. The recess is cut against the grain of the wood and carefully leveled. After measuring all the details, the canopies are screwed with screws to the leaves and the frame of the interior doors with your own hands.
The door frame can be installed in the opening in two ways: with or without hanging panels. To avoid damage or contamination of surfaces, it is recommended to protect structural parts masking tape, or film.
It is also important to check the floor level. The permissible difference in the height deviation of the racks is 3 mm. It is not difficult to measure the indicators; you will need to install a building level inside the opening and make marks. Having determined the difference, you can use the resulting numbers as a guide for subsequent measurements.
Stages of work:
- a rack with a top crossbar is installed;
- alignment is performed;
- the box parts are expanded using wedges;
- the verticality of the rack is re-checked;
- the second rack is installed in the same way;
- unevenness is eliminated and the level is adjusted;
- the block is fixed in the opening with self-tapping screws.
The door frame can be secured using a special liquid nails compound. Glue is applied to the surface of the frame and strengthened 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 making holes in the box for mounting in the wall.
As a result installation work the installed frame must take the correct strictly vertical position. You can control the installation using laser level, or construction plumb.
Eliminating Gaps
Doorways may be non-standard sizes. In this case, when installing doors with your own hands, you will need to additional work to perfectly match the frame. You can 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 covering the gaps with platbands. Making extras is usually not difficult. Veneer, MDF, or fiberboard, solid wood are used. Additional parts are attached to the box frame before installation. With the help of additions it is also possible to hide wall defects and unevenness.
Installation of double doors
When starting the process of fixing and hanging the canvases, you should first install the crossbar. This part is a pin for locking a fixed door leaf. The task must be completed in a certain sequence.
Initially, markings will be required. Next, a hole is drilled (3-4 mm less than the thickness of the pin) at a slight angle. You can achieve the required groove size using carpentry tools. Finally, the crossbar is inserted into the hole and carefully secured with screws.
Installing double-leaf interior doors with your own hands will require some attention. Special attention hanging and adjusting canvases. Even small errors can lead to unpleasant consequences in the form of distortions and the impossibility of using the door.
Installation of the double-leaf door structure is carried out in stages. First, the first web is hung. If the door does not close freely, the grooves are deepened. Too free movement can be corrected by placing sheets of cardboard under the hinges. The second door leaf is installed in a similar way.
Complete fastening of the hinges with screws is carried out only after the defects have been eliminated and the correct movement of the blades has been adjusted. The use of wedges and wooden linings will help to avoid box shifts when adjusting the panels.
You should also pay attention to the humidity level in the room. The microclimate of the room should be stable and dry. Before carrying out installation work, all repair processes with high humidity levels must be completed. It is not recommended to prime surfaces or glue wallpaper during or after installation. It is important to pay attention to the degree of moisture resistance new door. It is better to remove the door panels after installation, covering the frame with film.
Foaming process
Correct installation of a swing double door necessarily involves a foaming process. Before carrying out this operation, it is important to thoroughly prepare the surfaces of the structure. Polyurethane foam if it gets on the decorative outer layer of the parts, it must be removed, which can damage the coating.
The box is carefully covered with masking tape or film. Next, the voids between the plane of the opening and the frame are foamed. It is not recommended to use the doors for the next 2-3 hours until the foam has completely dried. When choosing a composition, you should pay attention to the expansion coefficient to avoid deformation of the door frame. At the end of the installation work, platbands are installed.
Lock mortise
Installing a double door with your own hands at the final stage involves inserting a lock. At this stage you will need to make accurate calculations and perform filigree work. Even small errors will lead to jamming and subsequent breakdown. Reinstalling the lock can ruin the appearance of the door leaf.
Additional complexity is caused by carrying out work in a canopy, which makes it difficult to achieve 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 outlined;
- a groove of the required depth is created;
- installation of the lock body (the bar should be level with the plane of the end).
High-quality installation of interior doors requires certain knowledge and skills. If you do the work yourself, it is important to take into account the main stages of the technology and the recommendations of specialists. Stylish doors will perform original decoration interior and will give comfort. Proper installation of the structure will ensure durable and comfortable operation.
Before installing double-leaf interior doors, you will need to find out their types. The design can have 2 operating principles - sliding and swinging. This system is made of glass, wood, aluminum, MDF.
Preparatory work
Installation of double doors begins with preparing the site for the installation of a new structure. There are several ways to make a door frame. If necessary, it can be purchased at finished form. The width of the box is equal to the width of the wall. When purchasing hinges, you need to think about which direction the double-leaf interior doors will open.
Initially, the old door with hinges is dismantled. The box is removed in the next step. To do this you will need a crowbar, a hammer, self-tapping screws, a tape measure, a level, and a saw. The box is secured with a pry bar. The opening is cleared of cement. In some cases it will be necessary to remove the previous foam.
Installation of the box begins with its assembly. This design is presented in the form of a frame made of the following types of beams:
- U-shaped.
- Rectangular.
Box assembly technology
The box is adjusted to the dimensions of the main structure. The width of the required opening for the mounted structure is calculated using the following formula:
Shpr = 2×(Tdk+3+Shdp)+4, where:
- Shpr – doorway width (mm);
- Тдк – thickness of box beam (mm);
- Шдп – width of the door leaf (mm).
The box is assembled according to the following formula:
ШВК= 2×(ШД+3)+4, where:
- ШВК – internal width of the box (mm);
- ШД – internal door width (mm).
Box timber must be cut at an angle of 45°. To do this, use a hacksaw with fine teeth. Then the hinges are cut into the vertical part of the door and the first structure. The loops are installed in the cuts. If overhead loops are used, then plunging is not done.
The assembly of this structure begins by attaching the parts to each other and twisting them with self-tapping screws. Initially, you will need to make a hole with a diameter smaller than that of the screwed-in element. This will prevent cracking during installation work.
Installation of the loop is done in the next step. This element should be located between the frame and the interior door. The number of loops depends on the weight and size door design. Professional furniture makers recommend installing 3 hinges.
The markings are made from above, making a 25 cm indent from the edge. 50 cm downwards from the resulting mark. From the bottom of the floor you need to measure 25 cm upward (to determine the location of the third loop). Interior doors are placed on edge. If the canopy is level, then the outline of the sash is outlined. The unnecessary part is cut off. To position the loop perfectly, you will need to align and clear the marked area. Heavy loads can lead to cracks. If all the parts fit, then screw the awnings to the door structure using screws. Their minimum length should be 3.5 cm. Do the same with the installation box.
Initially, markings are made for the vertical installation of hinges. Then the door is inserted into the frame. The gap between the door and the top beam should be no more than 4 mm. The door is pulled out and the grooves are cut out. The structure is installed back so that the loop cuts into the corresponding box. If it closes without any snags, then the double-leaf interior door has been installed correctly.
Box and opening structure
The frame of double doors can be installed simultaneously with the main product. Initially, the surface is protected with paper or tape. This will allow you to quickly clean construction foam in the future. The box must be installed vertically. To do this, use a plumb line or level. First, insert the stand with hinges and the top crossbar. Then the structural elements are subjected to expansion. The racks must be vertical.
The second rack is installed using a similar method. If the walls of the building are curved, then the box will need to be adjusted using pads. The 2 side posts are drilled through. The block is fixed to the wall with self-tapping screws. You can install the box in the opening using liquid nails. Glue is applied to the wood. The frame is installed together with spacers. Furniture makers recommend placing fabric under the last elements to prevent the door from being scratched.
Installation of interior doors begins with the installation of the crossbar. Make markings and holes. Its depth should be equal to the thickness of the crossbar.
To prevent backlash, you will need to make a hole in the corners.
The groove is adjusted on a carpentry unit. Then the bolt is inserted and the screws are screwed in.
Design adjustment
Initially, the first door is installed. If it closes poorly, then the grooves are deepened. If the structure “walks,” then you need to place small cardboards under the hinge flaps. The second door is installed and adjusted using a similar method. The hinges will need to be secured with screws. To ensure that the position of the product does not change during fixation, it is recommended to place wooden spacers between the base of the opening and the frame parts.
The installation of double-leaf interior doors includes the installation of a locking mechanism. This process is carried out by weight. The mechanism body is applied to the end of the structure on required height. An awl is used to outline the outline. Then a groove is made. Its depth should match the length of the lock. Its body is placed in the door. The strip should be flush with the plane of the end.
For several days (after installation), you cannot carry out work that increases the level of humidity in the room (painting walls, plastering). After this period, interior double doors ready for use.
Installation of interior double doors has a number of features. First of all, this concerns the availability special tools, and secondly, technological features.
First you should get acquainted with their division into types. It occurs according to the following parameters:
- according to the general principle: they can be hinged or sliding;
- material of manufacture: aluminum, glass, plastic, MDF or wood;
- by design: paneled, paneled glazed, solid, massive.
Initially, it is necessary to dismantle correctly old door. This applies primarily to the box and trim. 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;
- removing self-tapping screws, if the timber was secured with nails, they can also be carefully cut off with a grinder.
After removing the frame, the remaining leveling materials are removed from the doorway using a hammer drill. When the plaster is laid efficiently and has a smooth surface, it can be left only by cleaning off the remaining foam.
The next stage of installation is taking measurements. First you need to think about what kind of structure will be installed: sliding or hinged. 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, they save a lot of space. To install them you will need to purchase a special design, necessary work swing doors.
Note: you can build a plasterboard box into which the doors will subsequently “go” after opening. However, it will significantly reduce the space in the room that could be used for furniture.
The swing method of opening door leaves is very popular. After all, it increases the level of sound insulation, unlike sliding door. However swing doors, take up more space in the room and require more room to maneuver. This type of door is most often installed in large rooms.
Once the design of future doors has been chosen, you can proceed to measuring the existing opening. To subsequently decide whether it requires changes (decrease or increase). It is worth remembering here that the width of the box should be 110 mm less than the opening.
For this type of door, the opening should already be wider than both leaves and plus 100mm.
Assembly and installation of the door frame
Before you begin assembling the box itself, you need to check the conformity of the timber, 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, a hole should be drilled immediately before this. Accordingly, if the diameter of the self-tapping screw is 3.5 mm, then the drill should have a diameter of 2.5 mm.
Installation of the box
Most of the performance and subsequent performance actually depends on how accurately the box is installed. correct work the double door itself. Here you will need to use 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 that the edges of the box do not extend beyond the opening itself.
- After setting the box according to all parameters, it must be fixed. This is where wooden wedges come in handy.
- Drilling holes for screws in the box. At the same time, it is necessary to make marks on the wall.
- Drilling holes in the wall according to the marks. To do this, you will need to pull the box out of the opening.
- Placing plugs and securing the box in the opening.
- Foaming the remaining cracks.
Only after all this is the door hung, locks inserted and framed.
Everything goes much faster and easier here: 
- The rollers are screwed to the door leaves.
- Marking the height of the guides for the rollers.
- Outlining, using a level, a line. Fastening a block on it (its thickness should be from 40 to 50 mm). It is screwed to the wall.
- Installing guides on the block.
- Hanging the door.
Now you see that there is nothing difficult in installing interior double doors of any type.
The double-leaf interior door model is most often used in the following cases:
- the door opening is large;
- the room is small.
Bifold doors are often used in small rooms and areas with wide doorways.
Compared to a solid canvas, a similar design in open form takes a lot less space. This product is also popular due to appearance. The door leaf can be hinged or sliding. Sometimes you can find swinging models, but they are not popular. Installation of such a structure is not particularly difficult.
Tools and materials needed to install the door:
Tools for installing interior doors.
- construction foam;
- hammer drill, chainsaw or grinder;
- bars;
- self-tapping screws;
- milling cutter;
- crossbars;
- racks;
- wood spacers;
- metallic profile;
- electric drill;
- building level;
- corner brackets;
- plumb line;
- knife;
- cellophane;
- masking tape.
How to prepare an opening for installing double doors with your own hands?
Before installing such a structure, you will need to prepare an opening for it. If you need to dismantle the box earlier installed door, then this can be done by using a hammer and several screwdrivers various sizes. After this, the opening should be cleaned of excess plaster mixture And construction foam. To expand the doorway, you must use a grinder or a hammer drill. IN in this case everything will depend on the wall material. Reduce opening to required sizes can be done using a plaster mixture.
The walls must be prepared for final finishing and leveled to the maximum - the door frame should not adjust to unevenness or go out of plane.
Drawing of a double swing door.
After this, the door opening is calculated. On sale you can find interior double doors that do not fit the dimensions of a standard opening. Its width can be calculated according to the following scheme: the width of the canvas, the gap between it and the block, as well as the thickness of the box are summed up. The result obtained must be multiplied by 2 and added to it a few millimeters for mortgages. As an example, we will consider a standard door width of 60 cm and a frame thickness of 2.5 cm: (600 + 3 + 25) * 2 + 4 = 1260 (mm). In the same way, you can calculate the height of the opening. However, in this case, you will need to take into account the gap between the structure being installed and the floor base, which is approximately 1-2 cm: 2000 + 10 + 25 + 15 = 2050 (mm). In the process of making a threshold, you will need to sum up the height of the door, two thicknesses of the frame and the gap between it and the leaf, which is multiplied by 2.
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How to assemble a door frame correctly?
Installation and assembly of the finished box
Some of the door options are sold complete with fasteners and frame elements that are prepared for assembly. In this case, the installation process will not take much time. You will need to decide on the opening side of the structure, measure the length of the racks taking into account the unevenness of the floor base. In accordance with its height, it is necessary to saw off the lower part of the racks. Next, dowels are installed in the holes, which are located in the cuts on the side parts of the box posts. After this, all elements are pulled together as much as possible and fixed with corner brackets. To do this, there are recesses on the back of the box.
Door blocks can be supplied prepared for installation; the design includes grooves for fitting hinges. However, in some cases there are no such grooves. Then you will need to perform some steps to cut them out.
How is the box installed?
When assembling the box, the first thing you need to do is adjust the block to the dimensions of the canvas.
Door frame manufacturing diagram.
Its dimensions are two widths of the canvas and 6 mm for possible cracks. When calculating the height of the box, 10 mm must be added to the dimensions of the entire structure for clearance in the lower part and 3 mm for clearance in the upper part. The top bar and the ends of the posts that adjoin it must be cut at an angle of 45°.
Next you need to assemble the door frame. Its corners are connected with several self-tapping screws, the length of which should reach the central part of the second bar. Two fasteners are screwed at an angle from the side of the post element upwards, the third is placed between them, but is screwed at the top.
After this, the hinges are installed. The placement of the fastening and turning mechanism should be noted on the door. To do this, you need to measure 20 cm at the end of the canvas and attach a loop. Its outline will need to be outlined with a simple pencil or a sharpened knife. On this place You need to select a groove to the desired depth. It can be prepared using a chisel, but in order for the recess to be made accurately, you will need to use a router. With this tool you can do the job quickly and without errors.
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Through the hinge plate, which is laid in the recesses, with an awl you need to mark the places for the fasteners, and then drill holes for them. Their diameter should be 1.2-1.4 mm less than the diameter of the fasteners. Using an identical method, you need to make a recess for the crossbar on one of the sashes.
Installation of a door frame in section.
Next, you need to put the doors on the frame, mark the place for the hinges on the bars, and then make a notch on them in the same way as on the canvases. On sale you can find fastening mechanisms that do not require preparatory work. However, they are used quite rarely, since experienced craftsmen Such devices raise some doubts.
Hinges must be installed on all sashes and uprights of the structure. Then the crossbar is installed on any of the canvases.
How is the box installed in the opening?
During installation of the box into the opening using building level you will need to check the accuracy of its placement.
The structure is secured to the wall with long-length self-tapping screws (approximately 8-10 cm). The first thing you need to do is secure side racks. Wooden spacers must be installed between them and the wall.
The resulting space around the box must be filled with construction foam. It is necessary to take into account the level of its expansion (1:5). The door block elements will need to be protected from construction foam. After it hardens, you need to carefully remove the excess with a knife, and then close the gap with the platband. You will need to hang the door leaf on the appropriate place with your own hands, after which you need to drill a hole for the locking plate of the bolt at a small angle.
How to install a double-leaf interior door?
Installation of guide elements
Installation of a sliding door.
Sliding doors are a good replacement for swing doors. With their help, you can free up some space, which is important if you are renovating a small apartment.
When choosing double doors, you will need to pay attention to the material from which they are made. If for a wooden structure one guide element is enough, then a heavy glass structure will require the installation of several devices. The lower guide element needs to be planned so that the structure can be deepened into the floor. It must be secured before finishing the floor base. The horizontality of this element must be checked with a building level.
To determine the position of the upper guide element, which is fixed first, the door must be leaned against the opening and a line drawn horizontally along its upper part. In this case, you will need to take into account that there should be a gap of 12-14 mm between the floor base and the canvas. It will be possible to immediately place a gasket of the required thickness under the structure.
