Installation of arches for interior doors. How to make an arch instead of a door - options and instructions for construction from plasterboard. A simple solution for sliding arched doors

Often the interior passage in an apartment is not closed with a door, but left open. This allows you to elegantly unite the space and make the interior design of the rooms more elegant. For this you can purchase finished design from assembled elements or cut out individual parts with your own hands and then assemble everything into doorway. But how to make an arch yourself so that it looks smooth and beautiful? After all, there are a lot of materials and technologies for installation; you need to choose wisely.

Designer arch

What arches can be installed in an apartment?

Installation of an arched structure in place of an interior door can be done without involving professional builders. You just need to choose the type of arch and materials for its manufacture. Following the step-by-step instructions below will help you avoid mistakes and make an arch with your own hands.

Arch curves can be the most bizarre

Design features and significant differences

In construction, arched structures are supports for overlying elements of walls and structures. But in apartments, doorways to the corridor and between rooms are not load-bearing. In the first case construction materials are selected based on serious external loads, and in the second they must withstand only their own weight along with the finishing.

Arch with bar counter

An apartment door arch, installed instead of a door, is an element of interior design. Its frame can be made from a lightweight profile for gypsum boards or bars with a cross-section of 20–30 mm. This design can easily withstand the weight of finishing materials. You just need to firmly fix it on the walls so that the decor does not warp or fall off after a couple of weeks.

Reference! In private houses and city apartments, an open door arch between rooms serves exclusively decorative functions. Bearing loads in this case are placed on concrete walls on the side or a lintel above the opening.

Ready plastic arch

Shapes of arched openings and their capabilities

There are many options for arranging interior arches in shape:

  • "Classic".
  • "Romance".
  • "Modern".
  • "Ellipse".
  • "Trapezoid".
  • "Portal".

The most popular types of interior arches

The first option at the top has the shape of a regular semicircle, and the last one has strict rectangular outlines throughout its entire height. The rest are intermediate versions between them. But other variations are also possible with one side “support” or two curved posts.

The shape of the door arch and its design are chosen to match the design style of the room. This takes into account the height of the ceiling, the size of the opening and the features of the premises on both sides. In some houses, classic shapes with a regular curve in the form of a semicircle will look ideal, while in others - a rectangular portal. This is more a matter of the taste of the home owners and the general style of interior decor. Some people even prefer cone-shaped contours.

  • Classic version It is recommended to choose only when high ceilings in the area of ​​3 meters and above.
  • In typical panel high-rise buildings, it is better to design the entrance to the kitchen with a “MODERN” arch.
  • For a wide doorway from the hall to the corridor, “ROMANTIC” with large wide racks is more suitable.
  • The rectangular “PORTAL” looks best in an interior where clear horizontal and vertical lines predominate in the decoration. This type of doorway design is ideal for houses made of timber or logs. In such a home right angles will look elegant and fit the theme as much as possible.

Classic in the interior

What to build a designer doorway from with your own hands

To quickly make an arch in the doorway of an apartment, it is enough to purchase a set of prefabricated elements made of plastic or laminated chipboard lumber. They need to be trimmed the desired height, and then secure it in the places specified according to the instructions. But such options are standard and quite expensive. Plus, it’s not possible to fit every opening finished model With the right sizes.

Components of an interior arched system

To make panels of arched posts and arches you will need one of the following materials:

  • drywall;
  • plywood;

Advice! It is better to choose plasterboard sheets for covering the frame. GCR can be further finished with more various materials. However thin plywood much easier to bend.

Finished veneered arch

The frame for an interior arch can be made:

Brick decoration is ideal for connecting a balcony

You can also make an arch instead of a door from concrete, brick or aerated concrete blocks, and only then decorate them with one or another finishing material. But these options are more for those who like capitalism and solidity. Plus they weigh a lot, in old apartments apartment buildings It is impossible to build anything from them.

The use of metal is limited not only by its weight, but also by its high cost. Manufacturing of metal structures complex shape at home - this is a very difficult project to implement in practice. The easiest way to do it yourself is to work with drywall and its profile.

Step-by-step instructions for self-installation

The photos and recommendations below will allow even a novice master to cope with the improvement of a doorway. To do this, you first need to create a frame, and then sheathe it and decorate it. You can do everything yourself, you just need to do everything consistently and without errors.

Scheme of a plasterboard arch

Preparing the doorway

  1. First, the leaf and frame of the existing door (if it exists and is in place) are dismantled.
  2. Then the opening is expanded to the planned dimensions.
  3. There is no need to plaster the cut walls under the frame; they will still be covered with sheathing. It is enough to straighten them and remove everything that can fall off (plaster, pieces of concrete, falling bricks). The main thing that load-bearing profile could be secured securely and in a strictly vertical position without tilting.
  4. If you are planning a backlit design, then you need to install the wiring in advance.
  5. Measurements are always taken at several points in the opening so as not to miscalculate the dimensions.
  6. If the walls are uneven, then the thickness of the racks (depth of the arch) is selected according to the thickest place.
  7. To simplify marking and cutting sheet material to cover the arched frame, you need to make a template from cardboard life size. This will allow you to avoid mistakes and preview how the contours of the structure being formed will look.

Important point! The upper part of the arch takes about 10–15 cm away from the height of the doorway. At least 20 cm should remain from it to the ceiling. When calculating and marking, these numbers must be taken into account.

Fastening the guides

Creating a load-bearing frame

  1. To make a frame for an arch, you first need to create a main contour from a profile around the perimeter of the opening, fixing it to the walls.
  2. Then the upper curved part of the frame system will be attached to it. Sometimes only a curved element is made on top, but this is only possible with perfectly smooth slopes.
  3. Vertical guides in the doorway are attached with an indentation from the plane of the interior wall by the thickness of the plasterboard sheet plus 2 mm for subsequent plaster on top of it.
  4. After plastering you should get a single Smooth surface.
  5. On each side and at the top of the arch being created, you will need to secure two such profiles parallel to each other.

Advice! If the walls are made of wood, then self-tapping screws are sufficient to attach the guides, but in the case of concrete or brick, dowel screws will be required. The spacing between fasteners should not exceed 30 cm.




If the columns of the arch are made of small thickness, then two arches can be easily replaced with a wide profile. All cutting and bending manipulations in this case are carried out according to a similar pattern. However, transverse installation will no longer be necessary. When using wooden blocks instead of a profile, the frame for the arch is made using a similar technology. Only changes raw material carrier frame structure.

Two ways to bend plasterboard sheet

Rough sheathing of the frame

After completing the assembly of the arch frame, all that remains is to mount the gypsum board or wood board. To give plywood or fiberboard the desired shape, they will have to be pre-moistened, fixed on a template and steamed with a hot iron.

Ideally, you need to use special arched plasterboard, reinforced on both sides with non-woven fiberglass. It is enough to knead it longitudinal direction and give the desired shape.

Bend regular plasterboard sheet There are two ways: wet and dry.

  • Wet technology involves soaking the back side of the plasterboard with water and gradually bending it onto a template of the required shape and fixing it on it. This process is lengthy; haste can lead to rupture of the cardboard layer of the sheet. And you can install and fasten the resulting part with self-tapping screws on the arch frame only after completely dry gypsum

Advice! It is possible to speed up the process of moistening gypsum board to give it elasticity using a needle roller.

  • The dry method involves making parallel cuts on one side of the sheet, which affect the plaster and the upper outer layer of cardboard. But the front cardboard layer remains intact. The bend is smooth and of the correct shape.

Installation of the main element of the arch

Cutting sheet material is best done with a jigsaw. When using a hacksaw, the cutting edges will certainly be less even. The sheathing is fastened with self-tapping screws in increments of 5–6 cm. After fixing it, the edges of the plasterboard and plywood sheets. And then a special one is attached to the curved edge to protect it from chipping. plastic corner with perforation.

GKL fastening

Putty for perfect surface leveling

The next stage of finishing a plasterboard arch is primer and putty. After applying the first one, you need to wait until it dries. And fiberglass mesh is used to reinforce the second layer. The corners are also reinforced and leveled using a mesh.

The edges must be smooth

Surface putty

Putty joint with wall

Mesh reinforcement

Edge reinforcement with mesh

Next apply the third finishing layer. The putty, which has hardened after 10-2 hours, is sanded with sandpaper to remove excess and make the surface as smooth as possible. There should be no protruding screw heads or dents left on it.

This is what the arch should look like

Decoration of the structure and design techniques

You can finally decorate the arch in the apartment with your own hands and make it beautiful:

  • painting in color with the walls;
  • wood paneling or plastic panels;
  • wallpapering or veneering;
  • finishing with decorative stone on a gypsum base;
  • decoration with mosaics and mirrors;
  • decorating using stucco or ready-made columns.

Simple finish with backlight

Both natural and artificial materials are used in the finishing of the interior arch. The choice here depends on the general design idea for apartment interior design. To improve the doorway, you can use polyurethane stucco and even textiles. All options are acceptable, the main thing is that they are in harmony with the surrounding decor.

Shelves in the design of an arched passage to the corridor

The frame of columns made of clinker or decorative stone. Manual installation will require time and diligence, but the result will certainly please the master. The uniqueness of the apartment with this method of decoration is guaranteed.

Decor artificial stone

Arch finishing natural wood will bring solidity and grace to the house, and the mosaic pattern invented by the owners will make the decor unique. The main thing is not to overdo it with the design, making the design a tasteless heap of elements. different styles. All interior details should be in harmony with each other and complement each other.

Stucco columns in an arched doorway with wide walls

Often conventionally painted white or Brown color It’s quite enough to complete the design, making the arch with your own hands beautiful and elegant. However, some require built-in lighting and additional decorative elements in accordance with the style chosen for the apartment. It will take more time to finish the arched opening, but it will be worth it.

Decor with corner and wallpaper

It’s not difficult to install and decorate an interior arch instead of a door yourself. For work, it is enough to have metal scissors, a screwdriver and a hacksaw in the house. But if you have no experience in handling these tools, it is better to trust professional installers.

Arches are architectural element, existing since time immemorial. But despite all their archaic nature, arches are able to add zest to a modern one.

Now you can mount sheets of drywall - on both sides.

Construction of the arch vault

When starting to build an interior arch with your own hands, Special attention should be given to the vault. Firstly, this is the most difficult part of the arch to manufacture, and secondly, its shape affects the entire structure.

In addition to the above-mentioned arch-portal, there are several more types:

  • Classical arch or Romanesque(arch in the form of a semicircle);
  • Arch in Art Nouveau style(half a circle cut by a chord. It is similar to the classical one, but with a flatter arch);
  • Pointed arches(the vault seems to be made up of two circles that are leaned against each other);
  • "Romance" arc(similar arches are made in very wide openings. The vault is in the form of two arches connected by a straight gap);
  • Prism(the arch is made without any roundness, consists of straight lines, between which there are obtuse angles).

The sides of the vaults are also made of plasterboard. We cut out a recess of the required shape from the bottom of the sheets.

Since a prismatic interior arch consists exclusively of straight lines, it is easiest to make it yourself. To make a rounded vault, you will have to cover it in the lower part with bent sheets of plasterboard.

If you want to build an interior arch with your own hands, but have doubts about your own abilities, then you can use standard ones or make them to order. Arches can be chosen various designs, textures and materials.

Wooden arches will look expensive and presentable, but they won’t be cheap either. In addition, the material is heavy in every sense. For DIY work, fiberboard or MDF is better suited.

Assembling the arch must begin from the top.

First we use the wooden dowels supplied in the kit. We assemble a vault from two pairs of panels. We connect with PVA wood glue. After gluing, we wait for it to dry, and then the vault cornices from below.

Then we file the flexible plate of the inner part of the arch- with a margin of at least 10 millimeters.

We assemble the vault from the two halves, the halves are glued to the inner panel.

We install the arch in place and fix it with self-tapping screws or liquid nails. It is necessary to finish the side panels according to the dimensions of the openings with a small margin in length and width.

We also file the trims, from to to, so that the cut is inside the arch. Then we install platbands into the cornice of the vault using dowels. To do this, coat the groove with glue and insert it into it. sidebar so that the top edge fits into the groove.

We do the same with the second half of the arch.

In the life of any person, repairs occur from time to time. It may be associated with the purchase of a new house or apartment, with the desire to update the interior of a familiar home. One of the ways to organize space is to create arched structures. Arches in a house can perform two completely different functions: unifying space when an arch is placed instead of doors; division of a large area to highlight several zones with different functions.

Of these two options, the arch in the doorway is more common, giving a more interesting look to the apartment layout. When replacing a door with an arch, it is necessary to consider the pros and cons of such a solution. An undoubted advantage for a small apartment is the expansion of space. When combining kitchen and small room you can design a dining room where it will be convenient and pleasant to dine with family or friends.

If in long and narrow corridor If several arches are installed, then the feeling of narrow passages like in a train carriage disappears.

If an informed decision has been made to install the arch, then we proceed to choosing the shape of the decorative structure:

  • Rectangular;
  • Semicircular, having an equilateral rounding;
  • Semi-arch having only one rounded corner;
  • Trapezoidal, the design of which consists of curved lines;
  • Fantasy.

The downside of an arch instead of a door is that you can’t close the door to highlight your piece in the apartment. If an arch is placed instead of a kitchen door, the smell of cooking food will spread everywhere.

How to make an arch in a doorway

Once the shape has been determined, it is recommended to make a template from cardboard, fiberboard or other available materials. Creating a template helps you visualize the final result and more accurately calculate quantities necessary materials. When designing, we take into account that installing an arch in an existing doorway will reduce its height by approximately 10-15 cm. If the dimensions of the opening are not sufficient for implementation design ideas or the apartment owners are enough tall people, then you will have to increase the height of the doorway. Changing the height or width requires large costs, including labor, financial and time to coordinate the redevelopment in the relevant organizations. Determining the shape and creating a template are the first stages of making an arch.

They are followed:

  • Dismantling the old door frame (if this has not been done previously);
  • Preparing the wall surface for arch installation;
  • Creating a frame;
  • Installation of an arched structure;
  • Finishing and decoration.

All this work can be entrusted to professionals, but if you have the desire, you can do everything yourself.

Instructions: how to make an arch with your own hands

The cheapest and most common material for constructing an arch, as for many other works, is drywall. Dismantling the old one door frame. For more modern designs it's simple. You just need to unscrew the screws and carefully remove the trim. Old houses present various surprises to their owners. In ancient times, nails were used to secure the trim to the bars.

Carelessness during such work can lead to the destruction of ceilings or their damage.

After dismantling, we carefully evaluate the intermediate result of the work. The former doorway and the wall next to it should be clean, smooth, and without serious damage. Therefore, when cracks and chips are detected, we putty, this will help subsequently finish them correctly and efficiently. If you plan to level the walls with plasterboard, then this can be combined with the construction of an arch.

When the doorway is prepared, a U-shaped frame made of a metal profile is installed in it. It consists of one horizontal segment equal to the width of the doorway and two vertical segments, the length of which corresponds to our future design. The frame should be on both sides of the opening, that is, we actually make two of them. Two rows of 10 cm holes are marked and drilled in the profile. Then holes are marked and drilled using a hammer drill at the ends of the wall. The guides are attached to the walls.

It's time to use the pre-cut template. Sheets of drywall are marked along it, two parts for each arch are cut out using a jigsaw and attached with self-tapping screws to the installed profiles. It is also necessary to mount a profile along the edges of the attached template parts. As we look at how to make a semicircular arch, important stage is to give the drywall profile the appropriate shape. To do this, we cut the edges of the letter P of our profile to the full height. The profile becomes obedient and accepts what we need geometric shape. After this, it takes its place along the edges of the cuts.

The next stage requires accuracy and attentiveness. We need to correctly install the arched fragment of our arch. The profile has already been installed, so we measure the length of the arc and the width of our part, cut out a rectangle. The difficulty is that the rectangle doesn't really want to become an arc. If used regular drywall, then the main method of “pacifying” it is wetting and simultaneously giving it the desired shape. But this option may seem difficult to ordinary home craftsmen who are afraid of making mistakes. In this case modern technologies suggest that we use arched plasterboard, which takes a semicircular shape much more easily than regular one. We fasten our part in the usual way, moving from the center of the arch to the edges, and we are almost at the finish line.

We process the edges of the arch, cutting off the excess. After this, we treat the joints and edges of the drywall with paper perforated tape or serpyanka, putty, sandpaper. Choosing putty for finishing depends on the future decor of our arch.

Remained Finishing work, which we will return to a little later. If you plan to install lamps in the semicircular part of the arch, then you need to do this before you start puttingty. If you are afraid to take on an unfamiliar material, then you can install an arched structure made of plywood. In this case, two methods are possible: the first is similar to working with drywall, the second is described below.

Do-it-yourself door arch: making from plywood

To build such a structure, first measure the size of the arc of the future arch. A rectangle is cut out of a sheet of thin plywood, the width of which is equal to the width of the doorway and the length is equal to the size of the arc. Plywood is a malleable material, so the cut rectangle is evenly moistened, allowed to lie for a short time and bent to be installed in the opening.

It is important to place the cut out part evenly and neatly; this will require some skill.

Be sure to secure the part with self-tapping screws in the center, then along the edges. We fill the space between the resulting semicircular arch and the walls polyurethane foam and wait for it to dry. If free space a lot, then part of it can be filled with foam parts, and the remaining free space with foam. We cut off the excess foam and putty on the facade of our arch using sickle.

Less common designs are arches made of wood and brick. Despite the beauty and durability of such arches, their installation requires more expensive materials and participation professional craftsmen. The most interesting stage left in creating an arch in a doorway with your own hands is finishing. Various decorative materials can be used here.

Most common:

  • Wallpapering;
  • Decorative plaster;
  • Coloring;
  • Gluing finished foam finishing elements;
  • The use of decorative stone and other types of finishing.

How to make a door arch with your own hands (video)

Thus, it is quite possible to make an arch in a doorway yourself, using a regular repair tool and available materials. The result of such work will be pride in one’s work and originality. decorative element in apartment design.

Arched structures in construction have been known for quite some time. But previously, using arches in the design of homes or other buildings was the privilege of the nobility. Luxurious palaces, churches and so on - this was the main direction in the use of arched structures. At that time, building these was quite difficult in many respects. That is why their spread everywhere began only in the 20th century. Progress does not stand still and with the development of technology, installation work for arranging arches have become available to the general population, as well as use in various fields of construction.

An arched entrance door is more durable than a regular door, since its production uses solid solid wood, optionally covered with metal.

Today it is no longer a luxury, but rather one of the popular options for interior design or building design. A DIY arched door can easily decorate any room and make its design more original.

Carrying out individual construction, in the interior you can use arches in window and door openings, when decorating the ceiling, and so on. Of course, I would like to separately note the design of the arched door. After all, it is distinguished by its special sophistication and attractiveness. This is exactly what will be discussed next.

Types of arched openings

Types of arched doors.

Today, very often in the design of both residential and other premises, you can find a variety of arches. These can be either entrance or interior openings. There are quite a lot of their types. But if you think about classification, you can divide them into the following types:

  1. Semicircular view. The most common one today.
  2. Gothic (pointed) arches. They are distinguished by the presence elongated shape, which does not have smooth lines with a pointed upper part.

But that's not all, the first option is divided into several subtypes. This:

  1. Classic option. It implies the presence of a regular semicircular shape.
  2. Ellipsoidal. The name speaks for itself; their shape resembles a slightly elongated oval.
  3. Modern style. Its use gives the arches a variety of original shapes, having various kinds protrusions and transitions.
  4. Romantic version of arches. It is very simple, as it has the shape of a rectangle with a rounded top.
  5. Horseshoe arches (horseshoe-shaped). Their design implies the presence of both semicircular shapes and shapes with a pointed top. This option can most often be found in the interiors of different national cultures.

Related article: Making a wooden floor with your own hands

Now a few words about arched doors.

Arched doors: design options

An interior arched door will help visually expand the small space of the corridor.

Arched doors can be classified according to various criteria. For example, according to the material used for manufacturing or the features of their design. And another classifying feature is the location of their installation. So, taking the last of the signs as a basis, arched doors can be classified into:

  1. Interior doors. As is already clear, they are located indoors. Their design is made of wood and very often has elements such as mosaic and glass.
  2. Entrance arched doors. This option finds its application in various public buildings, for example in shops. In addition, they are used in their interior by various government agencies and shopping or entertainment centers. Their manufacture involves the use of a plastic profile.

The next classifying feature is the material from which arched doors are made. It's not very obvious here big choice. It is due to the complexity and existing difficulties in the manufacture of doors in the form of an arch. There are only 2 categories. This:

  1. Plastic. It is produced from profile structures, which are subsequently used to make doors and windows.
  2. Tree. This material is recommended for internal use, but in private construction, entrance doors can also be made from it.

Diagram of the arched opening.

And finally, the nuances of the design are also a classifying feature. Based on it, the following types can be distinguished:

  1. Doors shaped to match the opening. It takes quite a lot to produce a structure of this kind. a large number of time. And not everyone can afford their cost. The material for production is usually wood.
  2. A door leaf that has a standard solution with an arch designed above it. This type of door has a lower price, since the semicircular part is installed separately from the door leaf and remains stationary. In this case, you can use several door options, for example, swing or sliding.
  3. Doors with only 1 leaf. Used to decorate interior spaces. Use as input is also allowed.
  4. If the opening has big sizes in width, it would be advisable to use double doors. You can fix one of the parts in the doorway using a device such as a latch.

Related article: How to make glue with your own hands

Making an arched door with your own hands: is it possible?

This work is not easy, but it is still possible to do it on our own. Below is the work order and useful tips for making an arched door. I would like to note that it would be better to make the frame for such a door to order. To do this, you need to decide on the size and seek help from specialists. And here is the production door leaf provides for a simpler technology.

Necessary equipment

First of all, you need to make sure you have everything you need for work. This concerns various instruments and materials. Here's a short list:

  • an electric jigsaw equipped with saw blades for working with wood;
  • electric milling cutter (cutters should be of 2 types: disk for making grooves and cylindrical);
  • tape Grinder(it would be good if it was equipped with sandpaper in different sizes);
  • boards 5 cm thick;
  • wooden wedges;
  • medium-sized bars and self-tapping screws (4 pieces are enough), the length of which is 30 mm greater than the thickness of the bars used;
  • an adhesive composition with water-resistant properties (for example, PVA).

Door leaf arch: how to make?

To make it, we will need the opening width in pure form. You can calculate it in a simple way: from general meaning For the width, subtract the thickness of the box and the estimated gap (usually 2 mm).

On next stage you need to decide on the size of the arch. For a harmonious look, it should be equal to half the width of the door opening. Having found this out, you can begin to calculate required quantity boards The location of the material (boards) will be horizontal.

When installing a fixed arch in the resulting cavity, you can “hide” all the wires and cables.

For work, use only well-dried material. Using an electric router, you need to make the grooves. The protruding part of the groove should correspond to 2.5 mm. All grooves are made by analogy with the first.

MDF is a relatively new material on our market, however, it has already become widespread. Moreover, it began to be actively used not only in the furniture industry, but also in construction. In particular, in Recently, this material is often used for arranging arches; in fact, this article is devoted to this topic.

Below I will tell you in detail how to install an MDF arch with your own hands, and I will also introduce you to some secrets that will allow you to cope with this task quickly and without any effort.

Types and design of MDF arches

Recently, you can find a variety of MDF arches for doorways on sale, which allows you to choose them for interiors decorated in any style.

Depending on the design, they are all divided into two types:

Advice!
When choosing an arch, keep in mind that it should be the same color as the baseboard.

Regardless of the type of structure, everything interior arches made of MDF are sets that consist of the following parts:

All parts are connected to each other using glue and dowels, which are included in the kit. Thus, interior arches made of MDF are assembled like a construction kit during the installation process. Below we will look at this process in more detail.

Tools and materials

Before you begin installing the arch, you should prepare the following tools and materials that will be needed during the work process:

  • tape measure for taking measurements;
  • a hacksaw for metal or a hacksaw for wood with fine teeth;
  • four clamps;
  • PVA glue;
  • carpenter's hammer;
  • level.

If an arch is installed without corner fillers, then you will need more tools and materials to complete the arch in doorway. Below I will tell you in more detail how this is done.

Assembly

First, let's look at how to assemble an MDF arch with corner fillings. This work conditionally divided into several main stages:

So, the work is done as follows:

  1. you need to start with precise measurement doorway. Moreover, measurements must be taken in several places;
  2. after unpacking the arch kit you need to glue the arches together. To do this, the tongues are coated with glue, then inserted into the holes of one of the parts, and after that the second part is joined. For reliability, you can coat the ends of the parts with glue.
    It should be noted that if necessary, the arch can be expanded. For this purpose, the kit includes special additional elements that are installed between the two halves of each vault;
  3. Next, you need to glue the cornices to the arches using the same principle.;
  4. then you need to adjust the filling plates to the depth of the opening, i.e. wall thickness. It should be taken into account that the thickness of the plates should be 10-12 mm greater than the depth of the opening so that they can fit into the grooves of the arches and platbands.
    To cut the plates, you need to mark each of them in the form of points along which a straight line is drawn. You need to carefully cut the plates using a hacksaw. You can use one of the plates as a guide, which should be fixed on the part to be cut with clamps.
    In this case, the cutting line will be smooth, and, accordingly, you will not spoil the filling;

  1. the shortest plate from the set, which serves as a filler between the arches, must be cut to length. Moreover, you need to mark it so that it fits into the eaves to the middle.
    To mark the plate, it must be inserted into one of the arches. Trimming should be done according to the scheme described above;
  2. after this it is necessary to assemble the vaults and the plate between them into a single structure. To do this, you need to coat the grooves of one of the arches with glue. Then the prepared plate is inserted into the grooves, and it is centered so that its edges enter the cornices to the same depth.
    Next, using the same principle, the plate is connected to the second arch. The result is an arch assembly. It must be said that assembly can be done directly at the assembly site, as shown in the photo above, however, this is less convenient;
  3. Now finished arch needs to be installed in a doorway. You can attach it with “liquid nails” glue. To do this, the back side of the arches must be coated with glue, after which the arch should be aligned horizontally and pressed against the walls, tightening the arches with clamps.
    You can also use self-tapping screws. In this case, the arch is first leveled, then fixed with clamps, and after that the screws are screwed in;

  1. next you need to install cornice extensions. They should first be cut so that the length strictly corresponds to the depth of the opening. The ends of the planks need to be coated, then tighten the ends of the cornices, between which the extensions are located, with clamps;
  2. after this you need to cut the trim to length. It is more convenient to carry out the markings in place, the only thing is that the casing must first be turned over so that the sawn-off end is located at the bottom;
  3. then you need to cut the length of the panels that will be located between the trims. Their length should be slightly longer than the length of the platbands so that they can extend to the middle of the upper eaves;
  4. after this you need to install one of the platbands, connecting it to the upper cornice using dowels and glue;
  5. Next, you need to coat the groove on the back side of the casing with glue and insert the panel into it;

  1. on the other side of the wall, a second platband is installed using the same principle and connected to the filling. Both platbands need to be tightened with clamps;
  2. the second pair of trim and filling are installed in the same way;
  3. To complete the work, you need to install the lower decorative locks.

Advice!
If you are not sure that you can install the arch correctly, it is better to entrust this work to specialists.
The price of such a service is about 1,500 rubles.

This completes the arch assembly process. If the structure is finished, then no additional work no longer needed. An unpainted MDF arch requires more painting.

I must say that MDF painting is a rather complex procedure - several layers of special paint coating. Moreover, after applying the first layers, the surface is sanded, as a result of which the raised wood fibers are rubbed away.

As for installing an arch without corner fillings, the procedure is performed in exactly the same way. The only thing, as mentioned above, is that you first need to prepare the window opening.

You can do this in two ways:

  • cut carefully top part partitions in the shape of an arch, and then plaster;

  • build an arch using a frame and drywall.

After this, the entire wall must be puttied and finished. On our portal you can find detailed information about how to install drywall and finish walls.