No modern interior is possible withouteven corners and walls, because no decor elements will hide the curvature. How to level the corner of the wall yourself? After all, how reliable they are, depends on the durability of their decor. For example, with a significant unevenness, it's hard to find a wallpaper pattern, and in time they start to move away from the wall and crack. 
The corners of the walls can be leveled with plaster anda special spatula. Align the corner with plaster or plasterboard. To select the most suitable option, the first step is to determine the degree of unevenness with the help of a level.
Drywall for leveling corners
Necessary tools and materials:
- drywall;
- metallic profile;
- level building, ruler, gon, roulette;
- self-tapping screws, dowels, screws;
- screwdriver, perforator, mounting knife;
- primer and putty;
- spatulas.
Align the corners with plasterboard in two ways: skeleton and frameless. 
Diagram of equalization of the outer corner by plasterboard. The first option is used in cases where the curvature of the angle is very large. If the curvature is only 4-7 mm, then the frameless method is suitable. Each of these methods has its pros and cons. Thus, the frame is simpler and faster in execution. The frame is a sturdy construction, which has better heat and sound insulation. Frameless way of leveling is quite possible to perform independently, but for frame alignment it is better to use the services of a professional. Before proceeding to leveling, the first thing to do is to clean the surface of dirt and dust, and then treat it with a deep penetration primer. When the primer is completely dry, it is necessary to prepare a strip of plasterboard of the required size. The size can be adjusted by leaning against the wall. Then a small layer of mounting foam is applied to the drywall, and the material leans against the wall so that a part of the foam gets on it, which in the future will provide a better coupling. After that, another layer of foam is applied to the gypsum board and it is given a little time (about 5 minutes) to dry, after which it is finally applied to the wall. Very quickly, you need to correct the evenness of the material, using the level and profile, so that the foam does not have time to dry completely. The angle is checked by a square. Surplus foam after drying is removed with a sharp knife, and unevenness shpaklyuyut. Back to contents</a>
Plaster for aligning corners
For work you will need: 
The angle of 90 degrees is measured and leveled by a square and rule.
- putty start and finish;
- primer;
- counter-shell (aluminum corner, on which the plaster grid is attached);
- level;
- narrow and wide spatulas.
With this method ofuse the counter. The corners are fixed strictly vertically inside the corner, which needs to be aligned, only in this way it will be possible to create a perfectly flat surface. To fix the countertop, the surface must be primed, and then a thick layer of putty should be applied. Kontrasultz attach to the corner, pressing into the putty, checking the vertical level. You need to be careful not to accidentally bend the contrail, and it bends very easily. After fixing the counterstock, excess surfacer can be removed on the inside and allowed to harden. Then you can apply the plaster, making sure that the reinforcing mesh has been completely covered. This will make it possible to create not only an even, but also a strong angle. Align the corner of the wall so that it is clearly 90 °, extremely difficult, and the minimum error will still be present. The problem is that this error is the smallest, then the interior of the room will be perfect.
