How to glue uneven corners. How to glue wallpaper in the corners: design features. Step-by-step instructions for gluing inner corners

Modern wallpaper does not dare to be called a cheap finishing material - vinyl, non-woven, non-woven vinyl, textured and paintable ... You will admire the result of wall pasting for the next 5-10 years. Most often, problems arise with how to glue wallpaper in the corners. Let's figure it out together.

Varieties of wallpaper - choose relevant materials

Paper wallpaper is an eternal classic of repair. Their unfading popularity is due to two factors - low cost and a wide range. However, it should be understood that paper rolls, no matter how beautifully decorated with a pattern, remain a very short-lived material, and there is no point in gluing them in the hope of a long service life.

In a year or two, they will lose their former attractiveness, and if there are small children or animals in the house, this process can speed up significantly. However, this minus can be used to your advantage in cases where you need to make light cosmetic repairs in a rented apartment, or when you like to experiment with the interior.

Vinyl wallpaper on a paper basis is a more durable finish option. The front side, on which the bulk of all operational loads falls, in this case is performed by a layer of polyvinyl chloride. And it has a lot of positive qualities:

it can be washed repeatedly, even with the use of detergents;
foamed vinyl up to 10 times;
vinyl does not fade, does not pass moisture;
the decorative effect in the case of silk-screen printing or thick wallpaper (vinyl types) is comparable to the most expensive finishing materials.

Vinyl wallpapers on a paper basis last much longer. Of the disadvantages, one should be aware of the airtightness of vinyl, however, if you wish, you can find more on the market modern varieties finishes that are devoid of this problem. Glue paper-based vinyl rolls in the same way as regular ones. paper wallpaper, so for most it will not be difficult to glue the canvases without special training.

Just keep in mind that the vinyl layer significantly increases the weight of the canvases, therefore, ordinary wallpaper glue will not work here, you need glue for heavy wallpaper.

The fact is that the glue is applied only to the wall. There is no need to apply it to the canvases and wait for them to absorb it and swell.. In order for the joints to be perfect, very careful marking is required. Non-woven wallpaper is another type of finishing material made only from non-woven fabric. Wallpaper may have a textured pattern, but, as a rule, these are smooth canvases with interesting patterns. Glue them in the same way as the previous version.

Where to start sticking - do we act the old fashioned way?

Traditionally, the most difficult places in the gluing process are the corners. In most cases, they are far from ideal, therefore, if you start gluing joint to joint from the corner of the canvas, you can get a significant vertical skew. Many mistakenly believe that distortions can be avoided if windows or doors are taken as the starting point for pasting walls, they say, they are, for sure, perpendicular to the floor.

However, this is far from always the case - you can check window and door frames for errors using the most common plumb line. It is quite possible that you will be surprised how you used to get along with such curvature. The tradition of gluing from the window was led, first of all, because of the need to glue paper wallpaper with an overlap. If you glue them clockwise from the window, then the joints will not be so noticeable. However, in the case of vinyl or non-woven wallpaper, this is absolutely not necessary.

Ideally, if at least one corner turned out to be even, you can start from it. But it is best to do a thorough marking around the perimeter of the walls, focusing on a plumb line. In this case, you will see the big picture in advance, and the curvature of the corners will not be so noticeable against the background of perfectly vertical canvases. If you do the markup and glue the wallpaper on a non-woven base, then there is absolutely no difference where you start from - from the window or from the middle of the wall.

How to glue wallpaper in the corners - be patient!

The first rule of perfect gluing in the corners is not to glue the whole canvas into the corner. In most cases, this is fraught with inconsistencies with the next canvas and the formation of wrinkles. If you have chosen an expensive type of finish, for example, silk-screened vinyl wallpaper with a complex pattern, then it is best to pre-align the corners with plaster or putty, depending on what kind of unevenness we are talking about.

If the deviations are not so noticeable, then you can hide minor irregularities with the help of an overlap. To begin with, on one of the walls, which abuts against the corner, we glue the canvas so that it goes onto the adjacent plane by a maximum of 4 cm. Please note that the corner should be very carefully smeared with glue so that the canvas has maximum adhesion to the surface. Using a spatula or the blunt side of a knife, we carefully push the sheet in the corner - proceed carefully so as not to tear the sheet. Then use a rubber roller or sponge to get rid of air bubbles.

The next crucial stage is gluing the canvas on the adjacent wall. To begin with, take measurements again - it is necessary to ensure that the edge of the new canvas closest to the corner overlaps the one already glued by 2-3 cm, while the edge farthest from the corner goes right next to the new one.

Then, using a plumb line, we determine the vertical line that runs at the overlap from top to bottom. Carefully mark it with a pencil and use a ruler and a sharp knife to cut through two layers of wallpaper at the same time. The excess of the top sheet will disappear by itself, but remove the remains of the bottom sheet by slightly bending the top layer. Re-glue the folded edge with glue and press it firmly against the wall. If you did everything right, the result will please you.

How to glue wallpaper on the outer corner - subtleties and nuances

With the help of an overlap, the problem with pasting external corners is also solved. Only the process looks a little different. The first canvas is glued in such a way that one edge wraps around the corner by several centimeters. During the alignment process, it is likely that several cuts will have to be made in order to avoid wrinkling. Press the material firmly against the substrate with a sponge or spatula and allow time for the adhesive to harden slightly. Then cut the strip folded around the corner so that only a thin edge remains, no more than 1 cm.

Before you start gluing the second canvas, take measurements with a plumb line to determine the edge farthest from the corner. Focusing on it, we glue the second canvas in such a way that an overlap of no more than 5 mm is obtained in the edge closest to the corner. Thus, you will get an inconspicuous joint of the canvases.

Reading time ≈ 8 minutes

- the most common type decorative finishes walls. The technology of the process from the outside does not seem complicated, because even a beginner can apply glue to the wallpaper and stick it to the wall. Therefore, many owners decide to do such work on their own.

A beginner can easily handle wallpapering if the wall surface is sufficiently even and without obvious defects. However, the surface is not always properly prepared and leveled for finishing works. And also, often before lovers the question arises of how to properly glue the wallpaper in the corners. Here it is important to monitor the match of the selected pattern, if it is present. Therefore, in this article we will talk about a special technique for wallpapering in the corners.

Material selection

Wallpaper remains the most popular material for wall decoration in an apartment or office space. They are able to transform the room beyond recognition, hide the flaws of the interior and emphasize the dignity. What you need to know when choosing wallpaper for an apartment:

In the shop modern wallpaper represented by a wide range of models that differ in texture, color scheme and composition. The rarest type is liquid wallpaper, sold in the form ready solution in plastic buckets. However, we will consider the more common roll type. There are several types of wall coverings, the most popular of which are:

Each profession has its own tricks, if followed, you can achieve the fastest and most quality result. Sticking wallpaper in the corners is a laborious process that requires compliance with some nuances:

The corners in the room should ideally be straight and located strictly along a vertical line. However, often the rooms do not have the correct geometric parameters, so the corners must be aligned.
For curved corners and walls, it is better to choose voluminous canvases made of vinyl or non-woven. The pattern should be uncomplicated, and the shade should be matte. You need to glue such wallpapers in the corners of the room to mask all the flaws.
If you have uneven corners, you won't get thin paper sheets, or 3D covers with big, intricate patterns that need to be adjusted all the time.
It is best to start gluing from the window, gluing the very first sheet strictly vertically.
If your room has even corners, it will be enough for you to process them with putty, masking minor minor irregularities.
Align the corners with the help of special plastic corners, which are easy to find in any hardware store. They are securely attached to the wall with putty.
It is necessary to align the corners at the stage of finishing puttying of the walls.
If you decide to glue paper sheets without using an additional layer, it is worth considering the capriciousness of this material. Gluing must be done quickly so that the paper does not have time to absorb moisture from the glue.
If there are sockets or switches in the gluing area, turn off the electricity in the apartment for the duration of the work. So you will avoid unpleasant situations and undesirable consequences.
Do not glue the corners with a solid canvas. Before starting work, you need to make accurate measurements and cut the wallpaper into strips so that one canvas goes onto the next surface by at least 20 centimeters. For example, it is quite difficult to glue non-woven wallpaper even in even corners with a solid canvas.
Do not forget to coat all walls and corners with glue before starting pasting. Glue must be distributed over the entire surface, and in the corners with special care. It is believed that it is in the corners that the wallpaper most often begins to peel off and move away. Using a roller, the adhesive can be easily distributed over the entire area and perfectly prepare the surface for further finishing.
IN hard-to-reach places ah, apply glue with a special brush.

Wall decoration with wallpaper is the most popular option for decorating walls in rooms. Undoubtedly, wallpapering on even walls is quite elementary and requires only a little skill, but wallpapering the corners of a room is technically more difficult. Before sticking wallpaper with your own hands, you need to properly prepare the walls.

First you need to clean off old wallpaper or paint, apply primer to the walls and level their surface. And only then begin to paste over the corners with wallpaper.

So, repair specialists distinguish the following stages of this process:

You need to start by leveling the corners, for this you can use putty and, after it dries, clean it with sandpaper. In order for the angle to be even, you can use special device- a plastic corner that is attached to the putty. Remember that if you do not get rid of uneven surfaces, the wallpaper may peel off.
The next step is to apply glue - before gluing the wallpaper into the corner of the room, you must very carefully glue the entire height of the corner with glue. If the roller does not cope with its task and leaves unsmeared fates, it is worth using a brush.
Direct wallpapering of corners with wallpaper - there are different lessons of specialists that help to properly wallpaper the corner of a room, it is worth listening to them, but for greater productivity, we will indicate some features of this stage: competent finishers do not recommend gluing wallpaper in the corners with whole strips, this is due to the fact that they can distortions will appear and the joints will be uneven.
The wallpaper canvas must be cut so that their side from the sides extends 50 mm onto the adjacent wall.

Glue must be applied to the strip of wallpaper and the corner of the wall. Next, you need to attach the wallpaper to the corner of the wall as follows - if the pasting process starts from left to right, then the left side is applied to the inside of the corner to evenly cover it.

At this stage, you need to clearly understand that you need to wallpaper the outer and inner corners in different ways.

outside corner

External corners can be glued in two ways: firstly, if the outer corner has a flat surface, you can not waste time aligning it and immediately apply wallpaper to the corner, then use the level and measure the edge of the strip so that the remaining strips lie evenly; secondly, to glue the outer corners, you first need to lead the strip around the corner by 4-5 cm, and glue the next part of the wallpaper at the top. Using a clerical knife and a ruler, cut these layers vertically.

Inner corner

Internal corners require more attention. Wallpaper must be glued so that they go onto the adjacent surface by about 3 cm, but not more, otherwise they will go wrinkled. The fold and turn of the wallpaper must be coated with glue. Next, you need to measure the width of the wallpaper located on the adjacent wall, mark the allowance of the glued side, which is glued at a distance of about 2 cm from the corner and a vertical line is drawn through it with a plumb line - this will mark the edge of the glued wallpaper.

The wallpaper is leveled by rolling, for this there are special rollers and spatulas.

All the above stages of wallpaper stickers in the corners go sequentially.

Corners on the walls on the wallpaper: what is it

Plastic wallpaper corners are a good finish for finishing corners - they have protective functions and give the corner a finished look.

Construction markets offer different decorative corners:

Corners with a width of 20 × 20 to 50 × 50 mm are suitable for corners that are subject to heavy wear;
Dimensions 10 × 10 or 15 × 15 mm will give a neat finished look to the wall - they are called decorative corners;
The corners may differ in color, may have the texture of wood or metal.

For arched outer corners, it is better to use corners with the following approximate dimensions: 5 × 17.7 × 17.10 × 20 and 15 × 25 mm. Plastic corners are recommended to be mounted with silicone sealant, it is colorless and has good adhesion. The length of the corners varies from 3 to 7 m, so it can be adjusted to individual sizes.

Plastic decorative corners help protect wallpaper from mechanical damage at the corners of the wall, in addition, they are not expensive and easy to install.

How to glue wallpaper in non-woven corners: features and tips

Non-woven wallpaper is particularly durable, but working with them is quite difficult, especially on corner surfaces, because. they are not elastic.

To paste over the corner of the wall with such wallpaper, when cutting off part of the wallpaper, it is necessary to make an allowance of 1.5 cm, this allowance must overlap.

You need to know a little secret - sticking non-woven wallpaper will be easier if you make equal cuts along their entire length along their edge.

Glue in this case is applied only to the wall, and the wallpaper must remain dry. In the work on decorating the corner with such wallpaper, it is better to first use the corner, then unnecessary crooked places will not appear. If the choice is made in favor of wallpaper with a pattern, in this case it is necessary to qualitatively adjust the pattern in the corners. In order to keep the pattern in the corners intact, you need to cut the next strip from the corner to fit the pattern of the already pasted wall.

Here are some tips:

It is necessary to make a small overlap on another wall;
It is better to hide the joints at the top of the corner;
Wallpaper with a pattern in the corners is better to glue on a plumb line.

Meter wallpaper is a wide non-woven fabric a little over a meter. This type of wallpaper helps to quickly paste over a large apartment and the selection of a pattern becomes easier. In order to stick meter-long wallpaper in the corners, you need to overlap up to 3 cm on the next wall. The rest of the procedure will not differ from the standard pasting of corners, which is described above.

How to glue corners on wallpaper: installation technique

Then proceed according to the following plan:

The adhesion of the corners to the wall will be stronger if they are glued to the wall, and not to the wallpaper;
Distribute adhesive material evenly on the inside of the corner;
Attach and press on desired area on the wall, remove excess glue with a napkin;
Do not touch the corners until the material is completely dry.
In order for the sealant to better grab on the site, you can fix the corner with adhesive tape.

How to glue wallpaper in the corners (video)

So, knowing the technology of wallpapering in the corners, you can perform quality repair with their own hands and in addition to help relatives in this difficult matter.

When repairing an apartment with your own hands, wall decoration with wallpaper is the simplest type of work. Minor difficulties arise only when pasting hard-to-reach places: battery, window, door and corner. But if you know simple tricks, then here everything can be done quickly and with high quality. At the same time, the greatest number of secrets lies in the technology of pasting the corner. After all, it can be external and internal - hence the different solutions. To help beginner finishers in this article, we will analyze in detail how to properly glue wallpaper in the corners.

For wallpapering in the corners, you will additionally need the following materials and tools (the main materials and tools for decorating walls with trellises are listed in the work ""):

plaster putty;
angle spatula;
metal profile for the lighthouse (any) 2.5 m long;
grinder or hacksaw for cutting the profile to the height of the wall to be glued;
puncher for installing dowels;
dowels with self-tapping screws;
Phillips screwdriver or screwdriver.

Corner preparation

When wallpapering corners, it is difficult to ensure that they fit snugly against adjacent walls without wrinkles, air pockets and excessive tension. The joints of adjacent walls are to blame for this. They are either uneven, zigzag if the walls were plastered, or littered if the house is panel.

Therefore, an important task is to align the corners before starting work on decorating the room with wallpaper. Professional builders have several methods for this. The most common are listed below.

Method number 1. To one of the walls is strictly vertical, the control is carried out by a plumb line, a rule is closely applied, and even better - a metal profile. Thus, the most protruding point of the surface of the adjacent wall is found.

An angled spatula is applied closely to the point, and a profile is applied to the spatula. Again, with the help of a plumb line, the profile is brought to a strictly vertical position, after which 3-4 marks are made on the wall for mounting the dowels. Holes for them are drilled with a perforator, after which a profile is attached to the wall with self-tapping screws.

The corner is wetted with water, after which gypsum putty is applied to it. With an angled spatula, pressing against the profile, a perfectly even angle is formed. Excess plaster is removed, the procedure is repeated at the next corner.

After the putty dries, it is processed with zero sandpaper.

Method #2. For this method, you will need a countershultz (plaster corner), which is a metal or plastic corner with a mesh attached to the edges.

It is installed in a corner strictly vertically (a plumb line or laser level) and is attached to the wall with putty applied over the grid. After complete drying, the putty layer is polished with a special mesh or sandpaper.

The above methods of aligning the corners allow you to solve any violations of the geometry of the joints of adjacent walls.

How to wrap corners

When working with wallpaper, novice finishers will definitely meet with pasting of internal corners and, possibly, external ones. The methods of pasting them are different, regardless of whether paper, vinyl or non-woven type of trellis is used.

Attention: in this section we are talking about plain wallpaper that does not require color matching. How to stick wallpaper in the corners of a room with a pattern will be discussed at the end of the work.

So, how to glue wallpaper in the corners?

outdoor

In apartments modern building there are practically no outer corners that need to be pasted over. The exception is window slopes, but they are usually painted, not glued. If, nevertheless, you have to glue the outer corner, then below we will provide instructions on how to glue wallpaper in the corners of the room in this case.

The step-by-step algorithm of actions is as follows:

We measure the width of the glued sheet so that it goes around the corner by only 3-5 cm and cut it with scissors (a construction knife);
We smear the trellis with wallpaper glue and let it soak for 5-10 minutes;
We glue wallpaper to the wall using standard technology;
After excess glue and air bubbles are removed from under the main sheet, we wrap its strip on the other side of the corner and glue it. If problems arise: folds form or the canvas cannot fully adhere to the wall, we make cuts in problem areas;
Stepping back from the edge of the corner by 5-7 mm, using a plumb line and a pencil, we draw a vertical line;
We prepare the following sheet for gluing: cut it to size in length and width, if it is a window slope, or take a whole sheet of wallpaper, if work continues along the wall, spread it with glue and give time to impregnate the base of the ticks with mass;
We glue the sheet overlapping on a strip of wallpaper strictly along a vertical line so that subsequent sheets are glued evenly;
If the seam is noticeable, then with the help of a long metal ruler, and better profile for lighthouses, we cut both sheets of wallpaper with one knife cut;
Remove cut strips
We process the resulting joint with a narrow roller until the seam closes.

Internal

When pasting the inner corner, the last strip of wallpaper should capture the adjacent wall by 2-3 cm. To do this, it is sized in width - it is measured out, and the excess part is cut off. After gluing it, a vertical line is drawn on the strip at a distance of 4-5 mm from the corner.

For this, a plumb line and a pencil are used. The next wallpaper sheet is overlapped, strictly along a vertical line. If the seam is barely visible, this completes the pasting of the corner. Otherwise, an incision is made that allows you to remove the parts of the wallpaper pasted on top of each other and form a butt seam.

Note that the use of wide, meter-long wallpaper reduces the number of seams, which speeds up the entire technological process, but sharply complicates the work in the corners.

How to dock wallpaper with a pattern

With a relatively small blockage of the wall, a deviation from the vertical of up to 2 cm, it is possible to join the wallpaper with a clear geometric pattern so that the seam can be found only as a result of a careful study of the pasted wall.

We note right away that a shift in the pattern is possible, but very slight, and therefore hardly noticeable, if everything is done in accordance with the instructions.

A cut sheet of tapestries is taken, docked according to the pattern with the last pasted wallpaper, and spread on the floor face up.
A tape measure measures the distance from the edge of the last sheet to the corner at the top and bottom of the wall. For example, at the top the width of the unglued space will be 23 cm, at the bottom - 21 cm.
The results of measurements are transferred to a spread sheet of wallpaper. We mark the control points with a pencil or slightly cut with scissors. The main thing here is not to confuse the top with the bottom.
Add another 5-6 cm to 23 cm and cut off a piece of wallpaper 28-29 cm wide.
We impose a whole canvas of tapestries on the cut sheet and join it according to the drawing so that the point of 21 cm overlaps (this is the point, otherwise nothing will work).
We cut the wallpaper along the length and cut out that part of them that overlapped the mark (it is not necessary to cut it, you can not smear it with glue, which is a little more difficult).
We turn the first sheet over, spread it with wallpaper paste.
We glue the sheet on the wall end-to-end with the last canvas, carefully working through the seam first, and then the corner. You need to glue the overlap last. In this case, the formation of folds should not be allowed.
We retreat from the corner to the width of the next sheet of wallpaper and draw several vertical lines with a pencil along the plumb line at a distance of 0.5 cm from each other.
We glue the next sheet of wallpaper with glue and fold it so that the wallpaper is saturated with mites.
After impregnating the sheet, open the top and glue the canvas so that the pattern in the center of the wall matches perfectly. Focusing on the vertical lines, we glue the wallpaper along the entire length from the side farthest from the corner. Smoothing must be carried out towards the corner.
With help metal profile And construction knife, we cut both sheets of wallpaper at the same time (the cut should pass along the overlapped tapestries).
We remove the cut off strips of the bottom and top sheet.
We process the resulting joint with a narrow roller.

For reference: wallpaper with different pattern no need to splice. They are glued according to a simplified scheme.

There is nothing complicated in the materials that answer the question of how to properly glue wallpaper in the corners of a room. You can easily do the work yourself.

Other nuances of pasting corners

Every master in any field of activity always has his own little secrets. Wallpapering corners is no exception. It also has its own secrets.

With significant deviations of the wall from the vertical, more than 2 cm, you should buy wallpaper without a pattern or with a pattern that does not require careful adjustment - a crooked angle will warp the ornament and spoil the effect of the repair.
The corners must be primed to enhance the adhesion of the wallpaper paste to the wall - the backlog of the tapestries usually begins in the corners. If the primer was not applied over the entire surface of the walls, then instead of primer in the corners, you can use water-based paint or wallpaper glue, which is smeared 4-5 hours before the start of work.
Glue in the corners must be applied only with a brush - the roller allows gaps (does not coat the entire surface), which will negatively affect the quality of pasting.
Before gluing the main panel, it is desirable to glue the corner with a strip of wallpaper 10 cm wide (the recommendation applies to smooth wallpaper). This will hide the open seam and strengthen the trellis from tearing. Instead of a paper strip, professionals often use the Gossamer fiberglass painting.
For heavy or thick wallpaper in the corners, you must use a special transparent glue.
Non-woven wallpaper most effectively hides uneven corners.
When wrinkles are formed, while smoothing a strip of wallpaper that has entered the other side of the wall, the spade must be cut with a herringbone, which will allow it to be leveled. The overlapped next sheet will hide the cuts made.
Ironing the tapestries in the corners is carried out until the air cavities disappear - the wallpaper sheet should fit snugly against the wall, and not hang in the air.
After removing the scraps formed after cutting the seam, the edges of the sheets are carefully removed from the wall with a metal spatula and smeared with glue. If this is not done, the edge of the wallpaper, under which the cut strip was located, will definitely fall behind - almost all the adhesive mass is removed with the strip.

Key points

Corners are far from the most prominent place in the interior of any room, but it is the quality of their finish that determines the real class of work.

Here we only define, for starters, what situations we may encounter.

Types of corners

The order of work will largely depend on what angle awaits us:

internal between two vertical walls - there are such in any room, there are almost always at least four of them;
external, also between two walls - there may not be such at all, they can be avoided by finishing the window slopes to the corner; but if there is an external corner, it is he who will require the most work;
internal horizontal at the bottom, between the floor and the wall;
internal horizontal at the top, between the wall and the ceiling - the last two types could not be taken into account if you prudently approach the organization of these corners.

About materials and tools

Before we get started, let's look at what we will be dealing with:

Non-woven wallpaper - they are the main reason for all our actions, the most famous finishing material for walls. Wallpapers are made on the basis of long-standing paper ones - in them 70% is occupied by a cellulose layer, but with the addition of synthetic components that strengthen and give more flexibility, which provide the remarkable qualities of this material. To work on the corners here from paper - good flexibility, and from additives - great strength, which will not allow the material to tear at the most inopportune moment.
When it comes to wallpaper, their dimensions are especially important:

in width you need to count on 53 or 106 cm,
and along the length (height) - by 10.05 meters.

Glue - you can use universal wallpaper glue, but we still recommend a special one for non-woven, which, by the way, is not suitable for any others.
Rollers - it is advisable to stock up on a whole set for all occasions:
- for applying glue;
- for smoothing wallpaper already on the work surface;
- for work at the joints, and,
- for corner work.

Plumb line, ruler, level, pencil, scissors - you will have to measure and cut a lot, but most importantly - from the very beginning it will be necessary to get an ideal vertical line on the wall, and all further work will begin from it.

Helpful advice!
If in the future you will be able to strictly adhere to the received vertical, then it will be enough for one.
But we advise you to draw these lines on all four walls, closer to each corner, which will allow you to control the process more accurately.
Departure from the vertical always leads to very unpleasant errors and even the need for a complete re-glue of the roll.

The cutting tool is necessarily comfortable with a well-honed edge;
A trowel, a trowel, a convenient wide ruler - anything that allows you to get and control the cut line.

Nuances of preliminary preparation

The stage is preceded by very important steps for preparing a rough working surface.

As for the corners, it will be very important:

when working at the top and bottom - provide for the installation of skirting boards as a last resort, after the wallpaper, then:

the task of fitting the joint simply disappears by itself, the edges will be covered with skirting boards, providing a perfect joint;
in this situation, if we take into account the standard height of the premises of 2.5 meters, the length of the wallpaper is 10, and the height of the plinth along the wall is 5 cm, then the roll is cut into 4 pieces of 2.5 each, which is enough for four verticals, and without any waste ; otherwise, given the allowances, you will have to cut more than 2.5, which means that 3 pieces will go into action and one shortened one will remain neither to the village nor to the city;

it is very useful to use removable skirting boards - this will solve the problem with docking if you want to change the wallpaper in the future;
when working on internal corners - they must be strengthened with non-woven paper tape, which is glued directly to the putty, and is also puttied on top;
on outside corners- it is better to carry out a more thorough strengthening with the help of metal or plastic corners, which are fixed with screws; the corners are attached to the putty, and they are also puttied on top.

Helpful advice!
If your corners are not straight, we recommend using plastic corners, they are more convenient to select the desired angle.
There are quite a few options for reinforcing corners, but given that we will slightly trim the wallpaper further at the corners, it is better to use solid corners, without perforation.

if we talk about the surface as a whole, then it should be:

dried thoroughly,
aligned
primed
puttied and
sanded - at least with sandpaper by hand, but better with a machine.

Work progress

Consider in order all the angles, from simple to complex.

Angles top and bottom

Everything is quite simple here, even if you can’t hide the material under the plinth:

cut wallpaper with an allowance above (or below) the plinth by 6-8 cm;
glue and bend the allowance along the plinth line what is convenient to do ;
then, using a spatula as a guide, cut off the allowance along the entire length with a knife;

work must be done while the glue has not yet set, this will allow a small residue of 1-2 mm to be carefully inserted with a knife over the line of the plinth.

Angle inside

Here, first we provide ourselves with two reliable verticals on both joined surfaces:

first we glue the wallpaper on one side so that the area, at least 2 cm wide, goes to the adjacent wall;
waiting for the glue to dry completely;
usually 2 cm of allowance will be enough to glue the adjacent piece if you've made more and it's holding up well then there's no need to cut it off, otherwise be sure to cut it off using a sharp knife and spatula as a guide;
glue a piece on the adjacent wall right next to the corner and smooth it with a special;

there is always a temptation to avoid such a hassle, bend the piece in half in width and try to create a "perfect" angle from one piece; but, as practice shows, the wallpaper in the future will begin to run together and the whole corner will simply move away; nevertheless, we advise you to keep this method in mind; if you have very high-quality wallpapers that “do not come together” over time, and even under glue, then this option will be just perfect.

Helpful advice!
When pasting wallpapers, in no case do not stretch them on glue - when the glue dries, the material will definitely “run down”, exposing wide joints.
In addition, be sure to determine what kind of wallpaper you have at your disposal.
There are options that generally overlap should not be glued, only end-to-end.
Some are glued only with a shift relative to the adjacent piece or even with a 180 degree turn.

Angle outside

Here everything is much more complicated and responsible, that's when the question of how to glue the corners with non-woven wallpaper is really solved:

first glue the roll on one side, providing a bend on the joined wall of 6-8 cm;
then, (1), "around the corner" glue the roll, not reaching the angle of 2-3 cm;

mark the invisible vertical edge of the bottom roll;
exactly in the middle between the edges of the two rolls, (2), cut off both pieces, the rest of the top is no longer needed,
and the cut section of the bottom remains on the wall (3), ensuring a smooth joint.

conclusions

The price of high-quality processing of corners with wallpaper is neither more nor less than the quality of the entire work. Therefore, treat this task with the utmost care and with a cool head - accurate calculation, cutting, controlling verticals, one side with an allowance, dries up, the second, we cut.

Of course, the job requires stuffing hands. So, start with not yet so significant corners, which will still be almost closed. Be sure to watch the additional video in this article, it will support you with advice in difficult times.