How to install drywall on a wall: advice from experienced craftsmen. DIY drywall

Most people who have had to deal with construction or repair work, they know how versatile plasterboard is.

A sheet of drywall consists of gypsum and two sheets of cardboard.

Its appearance has significantly simplified many stages of work, allowing them to be carried out not only by professionals. Moreover, the technology of installing drywall has significantly increased the quality of work.

Drywall is very easy to install. If you have already encountered finishing work that uses traditional decorative materials, you can be sure that drywall will be the simplest building material. The technology for installing drywall is quite simple. After reading our recommendations, you will better learn about the basic techniques for processing and installing this material.

Calculation of the required amount of drywall

First, determine how much drywall and profile you will need to finish the ceiling or wall. In this case, it is also necessary to take into account the presence of door and window openings(they need to be subtracted). Add about 10% to the resulting figure to buy drywall with a small reserve. The profile for the frame is calculated taking into account the number of strips for fastening (joints).

Return to contents

Materials used in work

The main material, naturally, is plasterboard sheet (GKL). The size and thickness of the sheet are unified and amount to;

1200x2500 mm - dimensions;
9.5; 12.5 mm - thickness.

There is a moisture-resistant sheet (GKL-V) for finishing wet rooms and fire-resistant (GKL-O) - for finishing fire hazardous ones.

If the gypsum board is mounted on a frame, then a special metal profile is used. It has the shape of the letter P and holes for fasteners. This profile serves as the basis for attaching the ceiling and rack profiles. With the help of a rack profile, sheets are attached to the walls, and ceiling profiles - respectively, to the ceiling.
The profile can be attached to walls or floor slabs using hangers, which themselves are attached to the building structure, and the profile is grabbed and held using special locks. If you want to create a suspended ceiling, if the floor slabs are located very high, wire hangers are used. The length of this four-millimeter wire determines the distance suspended ceiling from floor slabs.

Attaching hangers and guide profile to building structures performed using dowel nails or long (up to 16 mm) self-tapping screws. The gypsum board itself is attached to the frame also with self-tapping screws with countersunk heads.

To decorate a living space, it is better to use special nails for installation plasterboard sheets. The distance between the fastening points depends on the thickness of the sheet and is usually about 200 mm.

For finishing office space Self-tapping screws or self-tapping screws should be used instead of nails.

Return to contents

Tool for getting the job done

For high-quality installation frame and plasterboards require appropriate tools.

Some of them, of course, are interchangeable and are used not only by professional workers, but there are tools that must be in the arsenal of a person who constantly uses drywall for finishing.

TO universal tool can be attributed:

Hammer.
Screwdriver.
Pliers.
Ticks.
Level.
Rasp.
Cutter.
Cord.
Metal scissors.
Roulette.
Hammer.
Square.
Hacksaw.
Spatula.
Grater.

In more professional set includes: cutter, needle roller, edge plane, crowns, staple profile ( special pliers), mounting support, handle for carrying gypsum boards.

Return to contents

Safety precautions

When performing drywall installation work, do not forget about such things as compliance with safety precautions. It is imperative to use a respirator and safety glasses (gypsum dust negatively affects the mucous membrane of the eye and the respiratory tract). To cut drywall, use a special sharp knife. A poorly sharpened tool is more dangerous and, in addition, often leads to damage to the drywall sheet.

Return to contents

Drywall cutting

How to cut drywall? The technology is quite simple. It is advisable to cut sheets of drywall as rarely as possible. To do this, carefully mark and try to cut so that the edge of the drywall is located in the place of the jamb or protrusion in the wall. By making a cut along the marked line, you can break the sheet with a light blow. The back side of the paper will not tear, so it will need to be cut.

A slightly different method is used if it is necessary to trim a sheet with corners inside. In this case, a knife designed for processing drywall is used.

To cut a hole in drywall, you need to draw its outline. If you are making a hole for a lamp, determine the center of the future hole and draw a circle required diameter. Then use a simple hacksaw to cut out the resulting shape.

Return to contents

Using drywall to level walls

The most striking example of the benefits of drywall is its use for finishing a wall instead of plastering. If carrying out plastering works could only be done by a specialist and for a fairly large fee, then covering the wall with plasterboard is possible to an ordinary person who has the skills to use construction tools and materials. In addition, in the process of such work, a lot of debris and dirt are not generated and, therefore, there is no need to spend a lot of time and effort on cleaning.

Return to contents

Making slopes

Drywall is perfect for arranging window slopes, which ultimately turn out perfectly smooth.

Drywall slopes can be made using two methods. The first is that the parts are attached to the frame or directly by gluing to the base. For such small areas would be better suited gluing slabs to slopes.

Return to contents

Gluing plasterboard slopes

The simplest option for arranging slopes. Parts are cut out from a sheet of plasterboard the right size, but before gluing them, it is necessary to prepare the base. For this purpose, if necessary, the old loose layer of plaster, paint or whitewash is removed, and the surface is leveled. In the future, this will ensure reliable fastening plasterboard slopes with a base. Glue can be purchased at any hardware store on the recommendation of a sales consultant. Do not cover with a layer of glue reverse side slope, it is enough to apply it in separate points every 10 cm.

To attach firmly horizontal slopes, they are pressed with spacers for 1-2 hours.

As an example of using a frame made of a profile or lath for fastening drywall, consider the following technology.

Drywall has long occupied its niche in the market. It enjoys well-deserved popularity because it universal material, which can be attached to walls or ceilings or used as a partition. However, depending on the installation location, installation methods will change, and various tricks will appear that must be taken into account when carrying out work.

Drywall is used to level walls and ceilings indoors.

There are several ways: on metal or wooden frame or glue. Each method has its own advantages and disadvantages. It is worth considering them in more detail.

Installation on walls using a frame method: necessary materials and tools

This method is applicable to any premises, regardless of their size and purpose. The frame is used when covering walls and ceilings, as well as when constructing a partition from gypsum plasterboard. It is worth noting that the sheathing in all cases is assembled almost the same way.

On initial stage it is necessary to prepare all materials and tools. To carry out the work you will need:

perforator;
screwdriver;
hammer;
mounting knife;
screws for wood or metal (depending on the material of the sheathing);
scissors or hacksaw for metal;
drywall;
profiles or slats;
mounting hangers;
pencil;
level;
roulette;
plumb line;
square

Return to contents

Preparing walls and marking the base

Important! Preparation of the base includes cleaning the wall from easily peelable coatings, repairing if there is significant damage, and removing deformations.

The next stage is marking. It is necessary to make an indent from the wall to be closed to the distance necessary for laying communications and insulation. Next, the location of the guide profiles located on the floor and ceiling, as well as on the walls, is noted. All guides must be in the same plane. Then it is noted where the rack profiles will be located. The distance between them should be 40-60 cm. In this case, it is necessary to calculate the distance so that the edges of the plasterboard sheets lie on the profiles and do not fall into the gap between them.

Return to contents

Installation of the frame for gypsum boards

Next, the frame is assembled. First of all, guide profiles are installed on the floor and ceiling. The reliability of the entire structure will depend on them, so they must be secured very carefully. The profiles are installed using dowels in increments of 40-60 cm. Next, guides are installed on the walls in a similar way.

Then, mounting plumbs are mounted to the wall along the line of the supporting profiles. The step is 60 cm. On adjacent lines, it is advisable to shift the plumb lines relative to each other. You can arrange them in a checkerboard pattern. This will give greater strength and rigidity to the structure. Next, rack profiles are inserted into the guides and moved into place. They are attached to guides and plumb lines. Self-tapping screws can be used for this operation. If the plumb lines have “ears” left, they should be wrapped inside the frame. After installation vertical profiles start installing the transverse ones. All operations are performed in the same way.

If the profile is too long, it can be trimmed using a hacksaw or tin snips. If, on the contrary, it is short, then it is necessary to increase the length using special connectors.
The lathing from wooden blocks is assembled in the same way.

Return to contents

Installing gypsum boards on walls

The last step is installation of drywall. However, before moving on to the final stage, it is necessary to resolve the issue of noise and heat insulation of the room. Mineral wool, foam sheets, and cork can be used as insulation. All these materials absorb sound well. Installation of communications, laying engineering systems is carried out before the walls are covered with gypsum board.
When the room is insulated and all communications are connected, you can begin installing the sheets. To do this you will need metal screws.

Important! The gypsum board is drilled every 30-40 cm to all frame profiles.

During installation, the following rules must be observed:

The sheets should be laid in a checkerboard pattern or like brickwork.
GCR can be mounted both vertically and horizontally.
Self-tapping screws are screwed into the material at right angles; deviations are unacceptable. The heads must be recessed into the plasterboard by at least 1 mm. Tails - extend from the profile by at least 10 mm.
The panels must be securely fixed around the perimeter and in the center to prevent sagging. The edges of the sheets must be laid on the profile.
When attaching gypsum boards, it is necessary to make an indent from the edge of the sheet with a factory cut of at least 10 mm, with your own - at least 15 mm.

Return to contents

Pros and cons of this type of drywall installation

This method has many more positive aspects; it is used more often:

walls are leveled even with significant differences, holes or protrusions;
all base flaws are masked;
reliable fastening of drywall;
there is no need for careful preparation of the base, its leveling, etc.;
opportunity additional insulation and soundproofing the room;
absence of “wet” operations;
can be used in any room.

There are only three main disadvantages:

reducing the area of the room;
low maintainability;
There is no solid wall behind the gypsum board.

If assembling the frame seems too troublesome, you can try simply gluing the material to the walls.

Return to contents

Fastening drywall with glue

It is not always possible to glue drywall. It can only be used if the following conditions are met:

There is no need for additional heat or sound insulation of the room. It is impossible to properly fix the gypsum board on mineral wool or other material: after a while it will fall off.
Irregularities on the walls do not exceed 20 mm. Otherwise, the sheets will warp, like the base, or will not stick, since the glue in the depressions simply will not reach the wall.
The height of the room does not exceed the length of the sheet. The standard panel size is 2500x1200 mm. If the height is greater, then you will have to look for a sheet 3 m long, but these are not available everywhere. It is not allowed to increase the length using cut pieces. This is difficult to do smoothly and at the same time efficiently.

If at least one of these conditions is not met, it is better to use the frame fastening method. You cannot glue plasterboard to the ceiling: in this case, lathing must be used. Of the special advantages of this type installation, space savings can be noted. It is very convenient in small spaces.

Interior decoration of the room begins with plastering the walls and ceiling or installing drywall. Installing drywall, as an alternative to plastering walls, guarantees the formation of a perfectly flat surface, which is especially important if the unevenness is too large to be leveled with plaster.

At the same time, drywall - although there is a special moisture-resistant one - is afraid of dampness, leaks, and is not intended for heavy loads (many bookshelves It’s better not to hang it). The editors of the publication understand all the intricacies of the drywall installation process.

Installation of drywall on walls: technology

Advantages:

work is dry and less dusty;
GKL – a breathable and heat-retaining coating;
installation of a wall or ceiling from plasterboard allows you to create structures various forms– decorative base for finishing and decorate rooms with an unusual layout (attic).

There are different ways to install gypsum boards, the installation procedure for each is slightly different. One of the principles of classifying methods is lathing. Its presence or absence, what and how to make the sheathing from - all this affects the material and labor costs of leveling the walls.

IMPORTANT! Mounting drywall using metal structures is the most common method. The steel profile guarantees the strength of the frame. Errors in the installation of sheathing are one of the causes of cracks in the finish and can lead to the dismantling of drywall. Therefore, it is very important to set the profiles correctly.

First, let's determine what is needed to build a wall from materials and what tools will be used.

IMPORTANT! Most often, a profile of two main standard sizes is used: D - to form the plane on which the gypsum board will be fixed; W - to build a general wall frame.

Installation of drywall on walls using metal profiles

Marking for the frame

Using a paint cord, mark a line on the floor that will be the border of the frame. Using a plumb line, a level and a pencil cord, the line is transferred to the ceiling. Strictly vertical lines are marked on the walls along which the racks will be mounted. The spacing between them must be observed so that the joints of the gypsum board sheets during installation fall in the middle of the rack profiles. Typically the pitch between the profile axes is 600 mm.

Installation of guides

Step 1 - Installation of the frame for fastening the gypsum boards

The horizontal profile guides on the side that will be adjacent to the base are covered with a special sealant - tape, which will provide sound insulation. Then, using a hammer drill, holes are drilled in the bases into which dowels are inserted, and the profile with insulation is fastened into them with self-tapping screws.

In order for the guides to firmly hold the gypsum board, a pitch of 500-1000 mm is selected between the screws, but one section of the profile must be attached to the base in at least three places.

Attaching hangers

Along the vertical lines marked on the walls, like the guides, hangers are attached, which will additionally ensure the rigidity of the structure.

Installation of racks

According to the markings on the walls, they are inserted into the horizontal guides. vertical racks. It must be remembered that the open side of the rack should be positioned sideways or facing the wall. First, the stand is inserted into the guide on the floor, then on the ceiling. The stand is attached to the guides and hangers with self-tapping screws.

Drywall installation

Correct installation GCR sheets must be carried out by several people. Two hold the sheet, and the third attaches it to the profile with self-tapping screws. Fastening starts from the top, the distance between the screws is no more than 25 cm. The seams between the sheets should not press each other, so they are mounted offset. Installation of columns and other complex elements is carried out according to the same principles: required form is achieved by cutting the profile and gypsum board sheet.

Step 5 - Attaching the gypsum board to the frame using self-tapping screws and a screwdriver

Cutting holes for sockets and switches

Scheme 1 - Installation of gypsum boards using metal profiles: one of the possible options

Usage wooden sheathing used less often - wood is afraid of moisture. The instructions for installing wooden slats are practically no different from installation metal profile. The frame is marked, then it is attached to the walls with dowels. wooden racks and spacers. Then they check how smooth the frame is. GKL sheets are attached in the same way as on a profile: the joints should fall into the center of the slats.

How to glue drywall?

Step 6 - You can attach the gypsum board to a flat surface using special glue

Installing gypsum boards with glue is the most quick way, but applicable only on a relatively flat surface - with differences of no more than 20 mm. This method is the most space-friendly in the room - it takes up the least amount of space, and the gypsum board sheets fit snugly against the wall. The marked sheets are attached to a cleaned, primed wall surface or to 10-centimeter gypsum board strips (using Perlfix glue). To do this, the sheets of drywall themselves also need to be primed.

Step 7 - You can attach the drywall after the wires and sound insulation are laid

Depending on the surface topography, the glue is applied evenly along the perimeter and along the middle of the sheet using a notched trowel or in small cakes with any suitable spatula.

IMPORTANT! For greater reliability, after the glue has hardened, gypsum board sheets can be secured with dowel nails.

IMPORTANT! Gluing drywall is carried out after careful marking, identifying irregularities and bulges, determining single level, according to which all sheets will be aligned.

Exist different variants how to glue drywall, in addition to what is described above. And what distinguishes them is not only the technology, but also the adhesive material. For example, some people use drywall stickers on polyurethane foam. The guidelines for installing on foam are slightly different than working with adhesive. Here, gypsum board sheets are screwed to the wall with long screws, after which polyurethane foam is pumped under it through the holes in the sheet.

Do-it-yourself drywall installation: video step-by-step instructions

Tools, materials and components for installation

Scheme 2 - Tools for installing gypsum boards

Depending on the installation method, you may need:

For marking: level, plumb line, pencil, painting cord, tape measure. It is easy to mark using a laser plane builder.
For installation: knife, metal scissors, screwdriver, hammer drill, hammer, spatulas, stepladder, devices for cutting excess material from edges, cutting holes.
Materials and components: gypsum plasterboard with the necessary parameters (for example, moisture resistant); steel profiles: guides and racks, metal hangers and connectors for their fastening, wooden slats, dowels, self-tapping screws, screws, washers, glue, foam.
It is convenient to use dowel-nails for fastening gypsum boards mounting gun(gas construction gun SPIT Pulsa 700P).

Installation secrets: how to cut drywall?

It is necessary to cut gypsum boards special knife. How to cut a sheet evenly: use a long strip, cut the paper along it, press on one side of the sheet (the gypsum core will break) and cut the bottom layer of paper with a knife.

Large quantities of drywall can be cut with a special cutter. The edge of the cut sheets should be made at an angle to increase the area of the seams, which will later be puttied. To do this, mark a line at a distance of 5 mm from the edge and cut off the excess material obliquely.

Insulation for drywall

Often premises require insulation, especially for balconies or loggias. As insulation under gypsum plasterboard, glass wool or mineral wool. Work with insulation is carried out at the stage when the sheathing is installed, but the sheets are not yet attached.

Wiring under drywall

Wiring under the drywall must be completed before installation and insulation begin. Electrical wiring is installed when the sheathing is installed. You need to lay the wires behind the drywall in a metal hose or corrugated material made of non-flammable plastic. Full electrical wiring is carried out along the walls and ceiling.

When installing gypsum board sheets, holes are cut for socket boxes and wiring leading to the lamps. The corresponding wires are pulled through the holes.

IMPORTANT! The socket boxes can be installed immediately after installing the plasterboard, but the installation of sockets, switches, spotlights and chandeliers must wait until all finishing work is completed.

Drywall joints

Sealing joints – important stage forming a flat surface. It is necessary to properly seal the corners and joints of the gypsum boards so that cracks do not appear on them over time. To do this, the joint is puttied, then reinforcing tape for joints is laid on top and another layer of putty is applied. On the outer corners of the doorway and window slope needs to be installed on putty corner profiles. The places where the screws are screwed in are also puttied.

Step 10 - View after puttying all seams and gypsum board fastening points

After the putty has dried, all areas treated with it must be thoroughly rubbed with a float. If the surface is not even enough, then it is necessary to completely putty the walls and, after drying, go through with a float.

Finishing work with drywall

After carrying out the above-mentioned manipulations, a pertinent question arises: how to prime the gypsum board and is it necessary to prime it? Definitely necessary. If next stage – Painting works water-based paint, then the primer can be done with paint diluted with water in a ratio of 3:1.

Step 12 - Finished work after painting the frame

Technology for working with other surfaces such as wallpaper or decorative plaster, requires the use of special primers recommended by manufacturers for finishing coating. Do-it-yourself processing of plasterboard surfaces is made easier due to the fact that the coating is very smooth.

IMPORTANT! How to work with drywall - paint, plaster or wallpaper - can be found in the instructions for the selected finishing materials.

Tile on drywall: installation technology + video of step-by-step instructions

Special view finishing– laying tiles on drywall. GCR is an undesirable base for tiles. But if you use it under tiles, then it must be special moisture resistant drywall, laid in two layers and primed several times. In addition, when installing drywall under tiles, the step between the rack profiles needs to be smaller.

Cost of installing drywall

GKL installation price:

price in Moscow – on average from 300 rubles/sq.m;
in Kyiv – from 65 UAH/sq.m.

At the moment, installing drywall is one of the most economical solutions for renovations in an apartment or private house. With this building material You can easily get rid of defects in walls or ceilings, achieving a perfectly smooth surface. It is also effective as a building material from which arches, boxes for masking communications and other decorative elements can be made. In this article we will look at the technology of attaching it to walls and ceilings.

Features of the material and its application

First, let's look at what this building material is like and what characteristics it has. Drywall consists of three layers: two external ones (made of special cardboard), and an internal one (made of gypsum with additives). The weight of a standard size product can reach 30 kg. Depending on what additives are used in production (hereinafter referred to as gypsum boards, plasterboard sheets), there are:

Regular plasterboard,
fire-resistant – GKLO,
moisture resistant - gypsum plasterboard.

The most common are ordinary sheets, which are used when working on the walls and ceiling of a room being renovated. Moreover, different thicknesses of the material are suitable for different elements. For example, attaching plasterboard to the ceiling implies the use of building material with a thickness of 9-9.5 mm, for walls - 12.5 mm, for decorative elements(arches, etc.) – 6 mm. The easiest way to install walls is from plasterboard - fastening can be done even by one person. Read about how to do this in this article.

Any installation technology involves the use of special fastening profiles. There are several individual species profiles:

ceiling
wall
rack-mount
guides.

Usually, maximum length such profiles do not exceed 4 m.

Preparatory work

Preparation for installation of sheets is a critical stage of work, on which the future of the planned repair depends. Preparatory work include the selection of tools necessary for installation procedures, as well as the assessment work surface, on which the sheets will be mounted.

Installation tool

Since installation of plasterboard sheets requires extreme precision, necessary tools include such items as a level, a tracer, a square, a tape measure, and a pencil. This set will allow you to accurately determine the locations for the profile fastenings. We will also need a hammer drill, metal scissors, a special plane and knife for drywall, a screwdriver (how to fasten drywall without such convenient tool? Read about this) - they will allow you to securely fix and refine the finishing surface.

Assessing the condition of the working surface

Before starting cladding, regardless of what surface it is mounted on, a thorough inspection of the plane is carried out. Great importance has the composition of the building material from which the walls or ceiling are made, as well as the air humidity that will subsequently be established in the room. After assessing the situation, a specific type of finish and suitable fasteners are selected. For residential premises, standard materials are best suited for bathrooms or basements, different high humidity air - moisture resistant. For an arch you need to choose a special arch material!

Selection of fasteners

When installing on a stone surface (concrete, brick, etc.), fasteners such as dowels are used (usually for such types of work their length reaches 40 mm and diameter 6 mm). For fastening on surfaces made of less dense materials (for example, silicate blocks, etc.), installation of drywall is carried out using dowels with a large diameter and length (8 by 80 mm). Self-tapping screws are used for wood surfaces.

Preparing the working surface for installing drywall

At this stage, the main work consists of measuring the parameters of the base surface for installing the structure on which the sheets will subsequently be attached, as well as marking it for the mounting suspension.

Ceiling markings

Regardless of whether we are going to make a ceiling from plasterboard or a wall, before fastening it is necessary to carefully mark the surface and prepare it for installing the profile. Considering that ceilings are not always perfectly horizontal (moreover, builders often lay floor slabs at an angle), it is necessary first of all to find the lowest angle of the ceiling. To do this, use a tape measure to measure the distance from each corner of the ceiling to the floor (you can simply use a level). Having decided on the lowest point of the ceiling, you can begin further work. By the way, it is the lower part of the ceiling that will serve as the starting point when lowering the ceiling from plasterboard sheets. When you have decided on the ceiling height, it’s time to mount the profile around the perimeter (as a rule, UD 27 is preferred, but for different rooms it is advisable to use profile types of different sizes) at a distance of at least 4 cm from base ceiling. After this, you can begin marking for the mounting suspension.

Wall marking

The marking of the wall is carried out in the same way as the ceiling. There are only a few nuances: the perimeter profile is installed at a distance of at least 5 centimeters from the wall, and the distance between the marking lines is not 40 (as for the ceiling), but 60 centimeters. As for the placement of marks for mounting the mounting suspension, it is the same as for the ceiling. If you plan to make a niche in the wall, then this must be taken into account when marking the wall.

Fastening hangers and profiles

The technology for installing drywall involves the use of fastening hangers (type ES or others), as well as knitting needles with a rotating hanger and an eye. We will be looking at ES suspensions. We will assume that we have already installed all the suspensions on the ceiling (wall) at strictly marked points. Using metal scissors, we shorten the CD profile along the length of the lines marked on the ceiling, but shorter by about 10 mm. These profiles are inserted into the UD profile previously installed around the perimeter and are oriented inside the ES mounting hangers. Here it is important to achieve the exact horizontal position of the CD profiles. We use a level to make adjustments. We secure the CD profile using small metal screws, and bend the excess edge of the ES suspension. To strengthen the base, you can additionally connect our parallel CD profiles with crab fastenings, using pieces of the CD profile specially cut for this purpose (40 and 60 centimeters long - for the ceiling and wall, respectively).

If the room parameters are such that standard sizes the sheet is not suitable - you need to cut it to give it the necessary parameters. A knife is used for this; the edges of the cut are additionally processed with a special plane. It should be understood that the location of the CD profile on the surface must be such that all edges of the plasterboard sheets fall on the profile. This is one of the most important fastenings, so this recommendation should not be neglected. So, we can say that the frame is ready.

Installation of gypsum boards

Once again we check the parameters of the frame for installing plasterboard sheets. After this, we fasten them with screws for metal with a length of 25 mm. In this case, you need to adhere simple rule: the distance between the fasteners is no more than 25 centimeters, and the self-tapping screw must be screwed in perfectly (the head does not protrude and is not deeply recessed into finishing material). Next, putty is applied to give the seams and places where screws are screwed in a perfectly smooth appearance. Used for putty special compounds, as well as a crescent film, which improves the adhesive properties of putty and cladding. Only after this can we say that the sheets are finally installed and ready for subsequent decoration. Also, for wet rooms, laying tiles on drywall is relevant, which we described in detail.

How much will it cost from third party specialists?

Name of works	Cost of work per 1 m2, rub.	Cost of materials per 1 m2, rub.	Total, rub.
Plasterboard partitions
with 1 layer covering on each side	420	400	820
with 2 layers of lining on each side	520	530	1050
Wall cladding with plasterboard
in 1 layer on a metal frame	300	300	600
in 2 layers on a metal frame	350	380	730
Plasterboard ceilings
in 1 layer, on a metal frame	420	300	720
in 2 layers, on a metal frame	500	370	870

Remodel an apartment, divide space in a private house, or simply implement something original design solution– a plasterboard wall is a universal option. And thanks to the ease of installation, even a beginner can handle its installation!

What you need to know about profiles and drywall?

The desired room sizes will differ slightly from those planned, because part of the area will be “eaten up” new wall. To understand what to expect in the end, you need to know the width of the profiles and the thickness of the drywall sheets (GKL).

Characteristics of profiles and their purpose

Before buying materials and starting to mark out rooms, you need to understand the purpose and differences of the profiles. So, according to their intended purpose, they are guides (PN) and rack-mounted (PS).

As the name implies, the guide profile is attached to the floor and ceiling and vertical posts are inserted into it.

D – rack and guide profiles 60x27 mm and 27x28 mm, respectively, designed for fixing drywall on one side only;
W – profiles for forming a full wall, sewn on both sides;
C – rack profiles with a rib height of 50 mm;
U – guides with an edge height of 40 mm;
50, 75, 100 – profile width, which should match the racks and guides.

For example, the marking CW 100 means that it is rack mounted wall profile dimensions 50x100 mm. It requires a guide profile UW 100 (40x100 mm). When choosing a profile, you need to focus on the desired thickness of insulation/sound insulation. So, for profiles with a width of 75 mm, standard insulation laid in one layer (for example, mineral wool) is suitable.

The length of the profiles also depends on their purpose. The guides are produced in one length - 3 m, but the racks can be 3, 3.5 and 4 m. The thing is that it is highly not recommended to “increase” the guides in height - this will weaken the entire structure and can lead to cracks. Therefore, before purchasing racks, you need to measure the height of the ceilings.

Drywall sheets - thickness, dimensions and characteristics

Wall plasterboard is available in a thickness of 12.5 mm - this is its minimum permissible value. The load on the wall in this case cannot exceed 40 kg per square meter. This sheet is quite enough for finishing for painting or even laying tiles with your own hands. If you plan to install heavy equipment, shelves or other interior elements, you should choose sheets:

15 mm thick - for loads from 40 to 50 kg;
18 mm thick – for loads up to 70 kg;
double sheets - for heavy loads from 70 kg.

The dimensions of the sheets are standard - width 120 cm, and height can be from 2 m to 3 m in increments of 0.5 m. Also, do not forget that only moisture-resistant gypsum plasterboard is suitable for the wall in the bathroom. Fire-resistant sheets are also becoming more and more popular - they do not flare up, but slowly smolder and quickly go out in the absence of a fire source.

Based on these data, you can determine the dimensions future room– from the original marking you need to retreat inward at least 8.75 cm (7.5 cm for the profile + 1.25 cm for drywall). If it is necessary to lay in the walls water pipes or corrugated cables large diameter, the walls are built from two rows of CD and UD profiles, and the width of the wall will depend on the selected distance between them.

Installation of plasterboard wall

Often perfect smooth walls, especially in old houses, no, so when dividing a room you need to link not to one, but to two opposite walls. This will minimize the visual unevenness of the future space.

If all surfaces will be covered with plasterboard, before making new wall, first, using profiles and plasterboards, the existing ones are aligned as much as possible. This will allow you to achieve even right angles, which will significantly simplify finishing work in the future.

Installation of profiles

Installing profiles is quite simple, but requires great precision. To level the racks, it is advisable to purchase laser level to speed up the process, but you can limit yourself to a regular plumb line. Installation is carried out in stages:

The profiles adjacent to the walls, floor and ceiling are covered with sealing tape in advance. It performs shock-absorbing and sound-proofing functions.

PNs are attached to the floor and ceiling along a pre-marked line in increments of up to 1 m. K wooden surface- with self-tapping screws 50 cm long, and for concrete - with dowels 75 cm long. In the second case, it is necessary to pre-drill holes with a hammer drill.

Both load-bearing and rack profile. It is important to remember that it must be continuous, so if the ceiling height is more than 3 m, only longer PS will have to be used.
If a doorway is provided, a gap equal to the width of the opening is left in the floor profile in this place. It is important to decide in advance on the width of the door - if the standard leaf is 80 cm, then the doorway needs to be made 88 cm (to install the door frame).
PSs begin to be installed from the doorway - they will determine its width. First, the profile is fixed to the floor, after which it is leveled and fixed to the ceiling.
The installation step of the racks is any convenient. They are often placed to fasten sheets along the edges and in the center - so you need to know the dimensions of the gypsum boards in advance. The joints of the sheets should be in the middle of the PS; this must be taken into account when installing the profiles.

The more frequent the spacing of the racks, the higher the strength of the wall, but also the higher the final cost. Also, to give it greater rigidity, insert wooden beam or load-bearing profile. For the same purpose, transverse struts made of PS, reinforced with the same timber, are used. They are installed in places of horizontal joints of gypsum boards.

A lintel is also installed above the doorway. The height depends on the size of the door. For a standard two-meter canvas, the height should be 205 cm.
The jumper is made from PS, which is cut 20-30 cm longer. On each side, retreating 10-15 cm from the edge, respectively, cuts of 45⁰ are made on the side walls so that the bevel is directed outward. The cut sides are folded down, giving the profile a U-shape. (9) The vertical sides are placed on the posts and secured with metal screws. The corners sticking out after cutting on the horizontal part are also screwed to the posts - this ensures maximum reliability of fastening.

Important nuances of installing drywall

The sheets are attached to the profiles with special self-tapping screws with a press washer - they do not pierce the cardboard, but are well embedded in the sheet. To improve the quality of seam sealing, a chamfer is removed from the top side of all cut edges (for factory edges this is not necessary, it is already there).