Types of profiles for plasterboard works and their purpose. Wall metal profile for drywall: sizes, types and criteria for choosing a quality profile What is the profile used for?

21.08.2017 0 comments

The key to the strength and long-term operation of the plasterboard structure is the use of a frame made of special parts. They are profiles for drywall, interconnected by fasteners, which are characterized by light weight and the ability to give the final product the desired shape and size.

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Varieties of elements and their properties

The production of profiles for drywall is carried out on a roll forming machine by rolling cold-rolled galvanized sheet metal. During the manufacturing process, the products acquire stiffening ribs, mounting holes, which, as a result, ensure their strength and practicality, as well as resistance to corrosion. The structure itself, made with the help of profiles, does not differ in complexity and consists of vertically and horizontally located parts, selected depending on its purpose.

For the construction of partitions

The profile for plasterboard partitions has large size than its other kind. The range of overall dimensions of products varies from 50 to 150 mm and is selected depending on the partition to be erected, the expected load on it, the need for installation of communications, laying of insulating materials. Partition profiles are divided into:

For decorating walls and ceilings

Almost all wall and ceiling structures are formed using 2 types of profiles - guide and bearing. To obtain curved curved shapes, a flexible drywall profile is used. Description of each of them:

Additional details

In addition to the main varieties, there are various elements that help to strengthen the structure, give it more security, or facilitate subsequent finishing:

Note! Products of large and well-established manufacturers are manufactured using steel best quality, which makes its acquisition more expedient.

Fasteners

Fixation of profiles to planes, as well as to each other, is carried out by products, which include:

U-shaped bracket. A bent perforated metal plate, the purpose of which is to connect the frame to be erected to the walls and ceiling. To do this, the bracket is fixed to the surface to be finished in the middle, and a starting profile for drywall is attached to the ends;
fast suspension. It is used when the U-shaped bracket is not enough, and consists of 2 parts - a knitting needle with an eyelet at one end and the suspension itself. Parts of the product are fastened to each other with a spring, which provides adjustment of the suspension height, which is the advantage of the element. Fastening of this type has a disadvantage - after a while the spring weakens, as a result of which sagging is possible false ceiling.
crab connector. Makes it possible to cross-attach the support profiles. To do this, the product is mounted in a profile, attached to it with antennae, self-tapping screws, after which a jumper is attached in a similar way, which is also fixed with self-tapping screws. To install one crab connector, you need to fix it with 8 self-tapping screws;
CD connector. The purpose of the element is to lengthen the bearing profiles. To do this, they are inserted into the connector on both sides and fixed with self-tapping screws;
double layer CD connector. An uncommon product used to assemble a frame that is attached to wooden floor... The frame made with these fasteners turns out to be double: first, the first is typed, and after it the second level of profiles, which is mounted in the usual way. The need to use a two-level connector is the need to compensate for changes in the size of the tree, depending on the level of humidity, temperature differences.

Fastening of metal profiles to surfaces, between themselves, as well as screwing drywall sheets to them is carried out using self-tapping and drilling type self-tapping screws, equipped with nylon dowels, anchor wedges, dowel nails.

How to choose high-quality profiles and fasteners?

When purchasing a profile, you should immediately check that it is even, corresponds to the declared size, and has no damage to the galvanized coating. In addition, products whose thickness is less than 0.55 mm cannot be used to equip the frame. To buy quality products, it is recommended to familiarize yourself with the types of marriage:

insufficient thickness of the metal, which entails the scrolling of the screws. If possible, you should check all types of drywall profiles using a caliper or compare products from different manufacturers if there is no tool at hand;
rust. If there are already traces of corrosion, then it will definitely spread further. Increased attention should also be paid to richly lubricated products - this may mean an attempt by the seller to hide any flaws;
improper rolling. To find it, it is enough just to inspect a separate part - the profile will be with a broken shape, twisted. A similar problem can also arise if the products are not stored correctly;
inconsistency with the dimensions of the profile for drywall specified by the manufacturer;
a rare or poorly made notch, which contributes to poor screwing of self-tapping screws;
traces of corrosion on the surface of the fasteners. It is also necessary to check the point and heads, the splines of which should be clear. Plastic plugs of the dowels should not have sagging, as they make it difficult to place parts into the holes;
the presence of a burr on the surface of the profile for drywall.

Thus, a variety of metal profiles and an assortment of fasteners make it possible to select products for the most comfortable construction of a drywall structure. The main importance is a competent and balanced choice, timely detection of marriage. Buying quality products, following the rules for its installation will lead to the fastest completion of work, and the result will exceed all expectations.

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At the end of the 19th century, in the densely populated cities of the world, it became necessary to increase the height of buildings. In 1885, American M. Baron Jenny used metal racks passing through the entire height of the building, and in 1890, his compatriot Sullivan proposed another option - floor belts. This is how a metal bookcase turned out, which we now call a frame. Her record was a 40-storey building.

But a person is a restless nature, having a room, he wants to reconstruct it, install an additional wall or partition. For these purposes, wooden frames were previously used. But they are not always practical, and care for natural material is also required, and the weight of the structure is quite large, which does not always have a favorable effect on the basis of the structure.

The metal is well suited for the frame, it is strong, but very heavy. It behaves superbly when building houses and various structures, but the partition in the apartment will turn out to be very heavy from it, which will create a large load on the floor and foundation.

But in 1926, a method of rolling high-strength aluminum sheets appeared in the United States. Since that time, mechanical engineering began to develop, and with the help of specialized new equipment, they began to roll metal sheets, give them a certain shape. So it appeared metallic profile.

The advantages of a metal profile

The second half of the 20th century was marked by the fact that builders began to gradually replace the wooden frame with a metal profile when erecting internal partitions and walls.

Why did the specialists like him so much?

By placing all the elements of the frame in one level and sheathing them with plasterboard, you can quickly get a virtually perfectly flat, both vertical and horizontal surface. The profile is installed in absolutely all rooms, even in those with high humidity. Thanks to its properties, it reliably protects against water, fire and other aggressive media.

The metal profile for a plasterboard partition is very easy to use:

easily cut with a specialized tool and mounted;
it can be bent, given a different shape, without resorting to the help of mechanisms. This is very convenient when you need to create a multi-level ceiling, arch or curly partition. With this material, it is possible to realize absolutely any, even the most creative project.

The only drawback is the cost of the profile. But is this a significant indicator for a quality product? After all, the wall profile:

durable
durable
wear-resistant,
waterproof,
fireproof,
easy,
quickly assembled,
applicable at any time of the year and under various weather conditions.

With the availability of the appropriate material, tool and with sufficient information, even a non-specialist can independently assemble the frame and install drywall.

Types of metal profiles

Plasterboard metal profiles in Russia are made from galvanized steel according to GOST №№: 14918, 14918-80, 52246-04, R 52246... And from sheet rolled steel, with a thickness of 0.35-0.55 mm, grade 08-20 - according to GOST 1050-88.

By their purpose, profiles can be divided into the following categories:

beacon, which helps to align the walls to the building level, serves as a kind of rails. It is widely used in plastering works;
ceiling guide, the name itself tells the audience that it is intended for mounting the frame on the ceiling and serves as its basis;
ceiling. It is attached to the horizontal surface of the ceiling and the guiding profile of the same name;
guide - this product serves as the basis for ceiling and rack profiles;
rack-mountable, which is fixed in the guide profile and creates a rigid frame for gycardboard on the walls;
corner - this part is used to strengthen the corners and give them an aesthetic look.

We will dwell on the last three products in more detail.

Guide profile

The guide profile, in the drawings it is usually designated PN, is made only in accordance with GOST. Domestic manufacturers - Volma, GIPROK, MAGMA - this long element is produced from thin galvanized steel and aluminum. Also, the Russian consumer is offered the products of the Knauf concern, which we will talk about, but a little later.

Thanks to the cold rolling technique, parts are produced on specialized roll forming equipment. The thickness of the steel is 0.6 mm, and this has a good effect on the strength of the product, because the profile carries a significant, if not the main load of the structure.

Drywall guides:

carry on themselves the function of a rigid base of the rack-mount profile;
serve as jumpers to strengthen the rigidity of the frame structure, for example, when installing window or door frames, partitions.

Structural features of PN

The element is produced in the form of the letter P, for specialists - in the form of a channel. It is made with holes already drilled in the profile wall. Their diameter is 8 mm, and they serve to facilitate the installation of dowels. This greatly speeds up the installation time, facilitates work and has a beneficial effect on quality.

If you need an extra hole, it is easy to make it using a tool such as a drill.

The shelf of any product is 40 mm. This size is also standard for a worker who fixes screws and then mounts drywall, and this greatly facilitates the work. You can read about this in the article "", which you can easily find on our website.

During the installation process, the guide profile works in tandem with the rack-mount, which means that they must be identical in type and size, and the PN (starting) must be attached to the horizontal floor surface and overlap without fail.

A well-installed frame will ensure the reliability of the structure, its long-term operation and the integrity of all elements. But some would-be masters, due to their ignorance or unjustified saving of money, change the size of the profile or do not use it at all in their work. This is considered an unforgivable mistake because:

stability is broken,
reliability is not observed,
sound insulation in doubt.

Replacing profile elements metal frame unacceptable - the installation technology will be violated, and this will lead to unpredictable consequences (injuries, damage to property, unnecessary cash costs).

If a PN is used as a base for a partition and a wall, it means that only it should be attached to the floor or to the ceiling. Only in this design you will have a straight and smooth surface, which you will then veneer, and the partition will not collapse in a couple of months.

The well-known corporation Knauf for the production of drywall and components for it offers its products to developers. Its products are considered reinforced, since they are made only of galvanized metal. They cost, of course, more expensive, but in this case, the high quality of the frame is guaranteed to you.

By TU 1121-012-04001508-2011 the following guide profiles are available.

Every specialist and person who is far from the construction industry, but by chance who has encountered these details, should know that the site of the PN cut does not need unnecessary protection of the material from corrosion.

The rack-mount profile, which is usually denoted in the drawings by the letters PS, is made in accordance with GOST and technical conditions... This is an element, the length of which can be 3000, 3500, 4000 and 6000 mm. Like all profiles, for the installation of gypsum plasterboards, it is produced using the cold rolling technique on a roll forming machine from a metal strip 0.6 mm thick and has a width of 50 mm.

For the construction of the walls, parts are taken with sections of 50 x 50, 75 x 50, 100 x 50 mm. This shelf size will provide the specialist with a convenient process for installing fasteners in drywall. This is especially recommended for double-layer plasterboard cladding, in this case, the likelihood of a screw getting past the shelf of a long product is excluded.

The rack profile (SP) for working with plasterboard sheets is made in the form of the letter C. On the shelf, the profile has longitudinal grooves that act as stiffeners. It is they who make the product more durable, and the middle one becomes an excellent guideline for the details of the frame and sheet. In addition, each end of the profile, which is attached to the wall, has a pair of holes with a diameter of 33 mm. Thanks to them, you can mount utility networks inside walls or partitions.

Designed for vertical guides of the metal frame of walls and partitions, which will then be sheathed with plasterboard sheets.

Installation takes place in tandem with PN - of the same type and size. Its length depends on the height and construction of the gypsum board wall and also on the requirements for sound insulation properties.

Installation is required to be carried out in the same direction with the open part of the PN. This method ensures that the fasteners are installed much closer to the vertical of the wall, and when installing the next sheet, the screw will not bend the shelf of the long part inward.

Knauf plasterboard rack profile is made in accordance with TU 1121-012-04001508-2011... Cold rolling from thin steel. Knauf Corporation produces a reinforced metal profile (UA), which is suitable as a rack profile when installing doorways. Modern developments are used in production technology.

The place where you made an incision on the part does not need additional processing.

An anodic zinc coating is applied to the surface, which has self-healing properties. It closes the appeared microcracks - due to the process of diffusion of zinc ions from a place that is not damaged.

Plasterboard is a fragile material. Therefore, it is important to preserve its integrity. Also, both the inner and outer corners of the structure need this protection. At this moment, the corner profile comes to the rescue, it is also called the outer corner of protection.

Corner profile (PU) is a galvanized or aluminum perforated tape, bent at an angle of 85 0 and having a length of 3 meters.

Aluminum is a lightweight material, but it is easy to bend, therefore high-quality transportation and packaging is required. Violation of the integrity of the product makes it difficult installation work... It is also somewhat more expensive, so galvanized steel is the best option. Such a product has:

increased resistance to corrosion, mold, harmful microorganisms;
good strength;
sufficient rigidity;
reasonable price.

Designed for:

for finishing all types of corners - as a perforated device, after installing drywall, window slopes, doorways. It gives the corner the correct geometric shape and helps to organize curly bends;
to create a frame under the gypsum board. In the future, the corner profile is hidden behind layers of putty.

This product is a complex model with a large number of holes with a diameter of 5 mm, located over the entire area of the corner. It is they who make it possible for the putty to penetrate the surface to be treated.

It is mounted on the wall without any problems, it is only necessary to make a little effort to get it into place. Initially, an underestimated angle of 85 °, and not 90 °, will give you a guarantee of one hundred percent adherence of the profile to the surface.

The Knauf Corporation offers its customers a carbon-protective profile (PU), which is produced according to

TU 1121-012-04001508-2011... It reinforces structures made of Knauf sheets and similar metal frame parts. The part is made of excellent quality galvanized steel and has high rates for resistance to corrosion.

Only you can decide which material to choose - whether the structure will be made of a metal profile or a wooden frame. It is important that she and her elements are of high quality. Then you do not need to waste energy, time, money on rework.

How to choose a metal profile when buying

When purchasing a product, take the trouble to pay attention to the storage conditions of the material in the warehouse. Products should lie under a canopy, correctly, if the climate conditions correspond to the OZh4 group GOST 15150-69... The manufacturer is obliged to guarantee the conformity of the goods regulatory documents, and the seller - no damage during storage and delivery.

It is worth paying special attention to the fact that metal products must be delivered to the object in a packaged form. Any type of transport is suitable for this purpose, as long as the packaging cannot be damaged during transportation.

What material to buy should be decided by yourself, we suggest that you compare the weight and pricing policy products:

Any product of this type must meet:

The requirements of the Federal Law " On the safety of buildings and structures "dated 30.12.2009 No. 384-FZ.
Specifications and GOST.
Sample-standard, which is approved at the enterprise in a certain order.
Comply with technological documentation and working drawings.

In some cases, small deviations are allowed, but such cases are strictly recorded and previously agreed upon.

The profile should not have rolled cracks and stress cracks. On the ends and edges it is prohibited to allow:

bundles,
torn surfaces,
chipping.

In a profile made of galvanized steel in the place of a 180 ° bend, the adhesion strength of the coating to the metal should not be greatly affected. It is possible to admit only a network of small cracks at the place of bending and delamination of the zinc coating from the edges at a distance of up to 6 mm.

The popularity that drywall gained in last years, is explained not only by its high performance.

Simple installation, the basis of which is a light and reliable metal profile - this is what attracts buyers who decide to start renovating premises.

The unification of profile structures is the main factor that made working with drywall available not only for professionals, but for home craftsmen. The types of profiles for drywall offered on the market are few. This makes it easy to understand the purpose of each element before starting work.

At the heart of plasterboard structures of various shapes and sizes are three types of profiles:

Plane;
Wall;
Arched.

The first type is used for cladding individual planes (walls, ceilings). The wall profile has increased rigidity. It is used as a supporting frame interior partitions, sheathed with gypsum boards. The purpose of the arched profile is clear from its name.

Profiles for cladding ceilings and walls

Considering, it is necessary to dwell in more detail on the structural elements, without which its installation is impossible.

When creating wall and ceiling structures, two types of galvanized steel profiles are used - UD and CD. You will not be able to build a curved surface without an arched profile. All of the listed profile elements have standard cross-sectional dimensions. The differences between them are only in the length and thickness of the metal used.

UD - guide profile for plasterboard... It is designed to create a mounting plane and is placed along the contour of the future false ceiling or wall cladding. The carrier profile CD is embedded in it. It forms the frame of the sheathing to which the drywall is attached.

The width of the UD profile is 28mm and the height is 27mm. The length is presented in two versions: 3 and 4 meters. The wall thickness depends on the manufacturer and can be between 0.4 and 0.6 mm.

When deciding what profile is needed for drywall, first of all, pay attention to the thickness of the metal. Elements made of thin steel (0.4 mm) can only be used for wall cladding. Thick metal (0.5-0.6 mm) will hold the suspended ceiling system securely.

CD - bearing plane profile... It is used to form the frame and takes up the bulk of the load. This structural element is responsible for the spatial rigidity of the frame and serves as the basis for fastening drywall.

CD profile width - 60 mm, height 27 mm. The standard length is offered by manufacturers in two standard sizes: 3000 and 4000 mm.

A plane profile is good for everyone, except for one point: it is impossible to create a basis for cladding an arched opening or a curved surface from it. The manufacturers solved this problem very simply: they took a standard CD bearing profile and made curly cuts and holes in it. This is how an arched profile was obtained, the dimensions of which completely coincide with the width and height of the carrier.

Mounting dimensions of a profile for arched drywall: width 62 mm, height 27 mm with a length of 3 or 4 meters. This profile can be bent not only inward, but also outward. In this case, the bending radius should not be less than 50 cm.

Some companies, such as Knauf, offer a ready-made curved convex or concave arched profile for domes and curved ceilings. This is a regular CD profile molded in the factory.

Partition profiles

Marked with symbols UW (guide), CW (carrier or rack). Compared to flat profiles, these elements have a greater width and height.

Their main size range is as follows:

Load bearing CW -50/50 mm, 75/50 mm, 100/50 mm, 125/50 mm, 150/50 mm;
Guide UW - 50/40 mm, 75/40 mm, 100/40 mm, 125/40 mm, 150/40.

Variations in the length of the bearing rack profile 2.6 - 4.0 meters. The standard rail length is 4000 mm. In terms of the cross-sectional shape, the partition profiles differ markedly from planar ones. Two longitudinal ribs are rolled back on them, which increase the rigidity of the wall, and in the rack-mounted one an H-shaped cut is made for the passage of cable lines.

UW gypsum board guides are used to define the mounting plane of the wall and install the bearing profiles. They are mounted around the entire perimeter of the partition (on the walls, on the floor and ceiling).

The CW rack profile is used to form the frame. It is most often installed in 40 cm increments so that the seams of the drywall sheets fall on its surface.

Another area of application of reinforced CW and UW profiles is where the highest spatial rigidity is required from the frame. Here, their functions remain the same: to create a guide plane (UW) and a structural batten (CW).

Briefly about the installation of profiles

As we have already said, the guide profile for drywall serves as a "baseline" that defines the plane of the sheathing surface. It is attached to walls and ceilings with dowels and self-tapping screws.

To assemble a unit from a guide and a bearing profiles, two methods are used:

Self-tapping screws ("fleas");
Mechanical cutter.

The latter method of interconnecting profiles speeds up the assembly process, eliminating manipulations with a screwdriver. However, it has one drawback: it is rather difficult to disassemble such a connection (analog of a riveted one), if necessary.

For attaching the bearing profile to the wall or ceiling, use straight plate or pin (sliding) suspensions.

To connect the bearing profiles in the perpendicular direction, use one-level or two-level "crabs" - rectangular stamped plates.

Estimated prices

Prices for metal profiles for plasterboard installation vary significantly depending on the size and thickness of the metal. We will look at market offers based on standard specifications.

The UD guide profile (length 3 meters, metal thickness 0.5 mm) can be purchased for 60-90 rubles. Carrying profile CD of the same length and thickness is sold for 80-130 rubles.

Average prices for a wall guide profile UW (PN) with a length of 3 meters look like this:

50x40x0.4 mm - from 60 to 70 rubles;
75x40x0.4 mm - 80-90 rubles;
100x40x04 mm - 90-110 rubles.;

A profile with a thickness of 0.6 mm is more expensive on average by 25-30%.

Estimated cost of rack CW (SP) profile (3-meter):

50x50x0.4 mm - 80-90 rubles;
75x50x0.4 mm - 100-110 rubles.;
100x50x0.4 mm - 120-130 rubles.

To create a durable and reliable drywall construction, special profiles are used to ensure the highest quality fastening of drywall sheets. Simply put, profiles are truly the foundation of the entire plasterboard structure. What are the types of profiles for drywall? According to experts, such profiles are divided into two large varieties - partition and ceiling. Today we will get acquainted with the varieties of these fasteners, find out their characteristics, and also consider the application options in the form of step-by-step instructions. But first things first.

Key types of plasterboard profiles

So, according to their purpose, all profiles can be of two types:

rack-mount;
guides.

And the representative of each of the groups must fulfill their specific function. The elements described in the article are labeled using the Knauf technology, all of them are manufactured in standard sizes:

UD are ceiling guides;
CW - rack-mount partition wall products;
UW - partition guides;
CD - ceiling mount.

Figure 1.1 - UD; 2 - CD; 3 - CW; 4 - UW

Note! If you connect the elements correctly different types, then you can get various plasterboard structures, including various boxes, partitions, suspended ceilings, etc.

The sizes and sections of these elements are also different.

Variety number 1. Rack ceiling profiles

Many people know the non-susceptibility of suspended plasterboard ceilings to mechanical stress. But the profiles should be not only light, but also strong in order to hold the entire structure together with the gypsum board (otherwise, all this may collapse on the heads of the residents). The rigidity of the frame is largely provided by the ribs of the CD-profiles.

These types of profiles are rightfully considered the most demanded. In most cases, they are used for finishing / construction work. In view of standard sizes there is almost no waste after working with these elements. It is easy to guess that these profiles bear the main load of the entire structure. Thanks to them, the reliability and rigidity of the frame, as well as the quality of fixing the drywall sheets, is ensured. The thickness of such profiles is different, but thin products are less reliable, which is obvious, and require a large number of fasteners for installation (we will talk about these elements in more detail a little later).

As for the length of CD-profiles, it can be from 270 to 450 centimeters. But in reality, elements with a length of 300 and 400 centimeters with a section of 6x2.7 centimeters are usually used.

Variety number 2. Guide ceiling profiles

Such profiles are used to create ceilings, walls and various boxes for the purpose of strengthening. Products are installed along the perimeter of walls / ceilings, and rack profiles are also inserted into them.

From the guiding ceiling elements, a kind of basis for the plane is formed, which will subsequently be sheathed with plasterboard sheets. The length can be 300 or 400 centimeters, while the section is 2.8 x 2.7 centimeters. All elements are thick enough (thin ceilings are not used), which ensures reliability. The best option for the construction of wall frames.

Note! If you want, the profiles for you can be made to your individual order. In any case, high-quality galvanized steel is used in the manufacture, which increases the resistance of the elements to environmental influences, temperature extremes and other things.

Variety number 3. Partition profiles for plasterboard

We continue to consider the types of profiles for drywall. So, if we talk about partition products, then, according to experts, there are several varieties of them, and their use, accordingly, depends on the future thickness of the GCR structure. So, UW-profiles (in accordance with the same marking of the Knauf company) are used in partitions as guides. Their length varies between 200-400 centimeters, and their width can be 4-15 centimeters.

There are also rack products (or, in other words, CW-profiles), which are made with notches to facilitate cable management. They are used in plasterboard partition structures and are the load-bearing elements of the entire frame.

Such elements are intended for use in vertical structures. The length can be from 276 to 600 centimeters, while the section is 5x5, 7.5x5 and 10x5 centimeters. By the way, the most popular are the profiles, the length of which is 300 and 400 centimeters.

A separate group - corner, beacon and arched products

As for the arched types of drywall profiles, they are with holes and notches necessary to make the profiles flexible. If we talk about dimensions, then they are the same as for ordinary elements, while the stiffness indicator is much higher. Arched profiles are used in order to receive arcs.

It would seem that there is nothing difficult in the formation of arcs, but in reality this is not so. Although experienced specialists easily cope with all this.

But with the help of beacon elements, various planes are aligned. For example, when plastering walls / ceilings. The length of such profiles is 300 centimeters. If you plan to create a smooth plane, then you simply cannot do without such an element (for example, to create slopes).

Important information! Beacon profiles for drywall significantly facilitate the difficult work of builders. They are fixed in difficult places in order to create a flat surface. Thanks to the material from which these profiles are made, it increases their resistance to various kinds of negative external influences.

Finally, there are also corner profiles. They are used, as you might guess from the name, to align / reinforce corners (for example, to protect the ends of partitions). Each element has holes with a diameter of 0.5 centimeters, which are necessary for better filling during the application of the putty mixture.

Various fasteners and accessories

In addition to the profiles themselves, other standard elements are used during the installation process, which should also be prepared in advance. Let's get acquainted with each of these elements in more detail.

Direct (normal) suspension. It is intended for fastening a rack or ceiling profile to a working surface (see picture # 1).
Anchor suspension. With its help, ceiling profiles are also attached, but exclusively to the ceiling. Each element has a rod and clamp allowing for adjustment of the suspension position.
Extension. With its help, strips of a metal profile are connected in a variety of combinations.
Crab connector. Designed for a cruciform connection (and can be used with all types of profile for drywall), and strictly at right angles, of structural elements. As a rule, with the help of the "crab" ceiling profiles are connected (of course, in the same plane) during the installation of the battens.
Duplex connectors. As you probably already guessed from the name, with the help of these fasteners, the profiles are attached at right angles, but already at different levels.
The last elements are self-tapping screws and anchor dowels. Designed to connect frame elements to each other or, as an option, with the main overlap in the room.

The illustration below shows all the elements described in the order in which they were listed.

What about work tools?

For the convenience of working with gypsum plasterboards, special tools are used to create designs of the required parameters, and the work is performed more easily and quickly, and the amount of waste is minimized.

In more detail, these tools include:

scissors for metal;
divider;
connecting pliers;
cutter.

With the help of metal scissors, elements of the required dimensions are cut. The pliers, in turn, are intended to connect the segments. By the way, they are called scrapprofile among experienced specialists.

Note! To assemble the structure, the elements in which holes are pre-drilled are connected. This is done using a notch punching the mounting holes. As for the divider, it is used for corner connection of profiles.

Video - What is required to work with drywall?

As you can see, in such a seemingly simple procedure - the creation of drywall structures - literally every little thing is calculated and thought out. You just need patience and desire for the result to exceed all your expectations! This concludes the theoretical part and proceeds to practice. First, let's look at how to properly cut drywall profiles.

Master Class. How to cut a drywall profile yourself

So, let's get acquainted with the process of cutting plasterboard profiles. To begin with, we note that many use metal scissors for these purposes, since they consider the use of a grinder too difficult or time-consuming. However, people who have some experience with drywall structures do not think so.

What is the main advantage of using a grinder for cutting a metal profile? First of all, this is the fact that the geometry of the product after cutting remains the same, while after scissors for metal, the profile is simply deformed (to one degree or another).

Moreover, even if you try to work with scissors on metal with the utmost accuracy, the end will be slightly damaged in any case. This, of course, is not critical, because the defect can always be corrected with pliers. But this will take additional time.

Note! The most unpleasant aspect of the cutting procedure is a squeezed edge. So, if you crush it, then the height of the product will increase, due to which the starting profile will unbend when the end is inserted into the groove. This, again, is uncritical, but the culture of production suffers because of this, which is not to everyone's liking.

Moreover, it will cut more slowly. The products will have to be turned over in order to make cuts on both sides, and then unbend and cut. With the use of a grinder, the speed of work increases noticeably, especially if you need many of the same type of workpieces at once for a particular design.

What should be the tool?

The tool that will be used to cut the profile deserves special attention. For example, a grinder (angle grinder) with a power of 650 watts, as well as cutting discs for metal with a minimum thickness (from 0.1 to 1.5 centimeters), will show itself well. Thanks to this combination, the metal will pass quickly and without any special effort. Typically, the smaller the disc thickness, the easier it will be for you to cut the product.

However, this method has its drawbacks. So, if work is carried out in an apartment, then nearby objects will have to be protected from hot sawdust and sparks. And in some cases, there is simply not enough free space. Finally, "admirers" of the sound of a working grinder - we are talking about neighbors - will immediately appear in order to personally inform you about it.

Note! Once again, it is worth recalling the safety precautions. Use funds individual protection- work gloves, safety goggles - and handle the tool with utmost care. Always try to stay away from the trajectory of the spread of sparks. And one more thing - try to always use a protective cover for the grinder.

Master Class. How to make a semicircular plasterboard partition

In another step by step instructions we will look at how to make a plasterboard partition with a rounded corner using profiles UW75 / CW75... First you need to mark the floor, and then transfer it to the ceiling. It is convenient to first mark a right angle (that is, without rounding as such), and then draw a square (its side is the required rounding radius). In order to calculate the length of the profile, you can use the formula:

A = 3.14 x B,

A is the circumference;
B is, respectively, its diameter.

Next, you need to mark the UW profile by 5 centimeters (this parameter will correspond to the width of the side shelf of the CW product). Take a grinder and cut the profile as shown in the image below (that is, you only need to cut the side / bottom shelves). By the way, we have already talked about the types of profiles for drywall in the previous sections of this article.

Now you need to set the cut profile in accordance with the previously marked radius, and in our example, the product is attached to the ceiling using self-tapping screws, and to the floor using dowels. You should not feel sorry for the material - literally every piece should be fixed.

When everything is ready, you need to insert a rack profile into each of the five-centimeter segments. In those of their last elements, which will be intended to limit the doorway, it is imperative to insert a bar. Such bars, by the way, can be purchased for all profiles; they are good because they fit tightly into the product.

After that, it is necessary to fix all the rack elements to the tex.

After cutting, the plasterboard elements must be placed on the frame and secured with 2.5 centimeters of self-tapping screws. Moreover, the fastening should be done in strips. First of all, the first band is completely fixed, then the second, third, fourth, fifth and so on. We recommend starting from the top or from the bottom, because if you do it from the middle, then the profile will bend, which will make it difficult to tighten the first screw.

L-shaped drywall sheets are used to sew up all openings in accordance with the technology. It is necessary to try so that the joints do not fall on those rack profiles that are intended to limit the opening, since here the putty will surely crack.

The sheet can be pre-cut on the floor, but it is more convenient to do this already "in place". It is recommended to take a sheet that goes out onto the opening, screw it on, and only then cut the top with a hacksaw on wood or with a jigsaw. One side is cut from the side, breaks, then the second is cut. This will make the work more accurate and faster.

And how to fix the profile to the walls?

For many, this is not a problem. Especially when it comes to a new room with fairly flat walls. Fastening is carried out using standard perforated hangers, the procedure is as follows.

Step one... First, you need to fix the hangers to the walls using dowels.

Step two... Then the suspensions need to be bent to get the letter "P".

Step four... In the latter there is a special hole through which, using "fleas", and you need to fix the profile.

Step five... At first, the profiles are fixed in most cases along the edges of the walls, then they are aligned and pulled between them by 3 threads. After that, according to the latter, the remaining elements are exposed and fixed.

Video - Arrangement of a frame for plasterboard

In 1980, a paper mill owner named Ostug Sackett came up with the idea of creating a new building material out of plaster. At first, plasterboard sheets were used to replace plywood and chipboard in small houses... It was then that the interesting properties of this material were discovered. The joints of smooth and even cardboard are very easy to seal up so that when painting or other types of finishes, they will be completely invisible. Breaking the marked sheet instead of sawing is much easier. The invariability of dimensions excludes cracks in the joints ... Plasterboard has established itself in the construction market for a long time and has remained an integral part of the repair to this day.

This or that plasterboard construction must be supported by a frame made of strong and stable parts. These are guides and profiles of various shapes, which are interconnected with the help of special fasteners. They differ in purpose and application, as well as in size and quality. It is very important to do right choice upon purchase, the result of the work will depend on it. After all, if you take a bad profile or simply not suitable for a certain type of work, the structure will eventually have to be redone. For example, a sheet on the partition will bend or "go" to the side, gaps at the joints will become visible, or a noticeable "wave" will appear on the wall itself. In order to avoid mistakes during repair and construction, you need to study well the types and sizes of profiles for drywall. Find out what kind of material is needed for the construction of a certain structure.

Rack profile (designated as: CD or PP).

Perhaps one of the most popular profiles for mounting drywall to the ceiling. This type provides reliable fastening of sheets. And if you choose the right dimensions, then the work space will be used as economically as possible, leaving almost no waste.

CD or PP sizes:

Profile length - from 2.5 to 4 meters
Width - 60 mm
Shelf height - 27-28 mm

Guide (UD or PPN).

Profiles are used for the construction of a suspended ceiling. These elements are mounted over the entire area of \ u200b \ u200bthe work, because fixing the sheets of cardboard, the drill passes directly through them. It is advisable to purchase guides that already have cut holes (perforated profiles). Then it will be much easier to carry out the installation.

Thickness - 0.55 millimeters
Length - 3 meters
Width - 27 mm
Height - 28 mm

Profile (UW).

This look is very similar to the above UD. It is applied in the same way, but has different sizes:

Length - from 3 to 4 meters
Width from 5 to 10 centimeters
Shelf height - 40 mm
Metal thickness - from 0.4 to 0.6 millimeters

Partition profile for drywall. Sizes and types.

Guide profiles (UD).

This type is suitable not only for ceilings, but also for plasterboard partitions and wall cladding. Let's take a closer look: there are holes for dowels (8 millimeters) in the back of these products. The profiles are shaped like the Russian letter "P" and also differ in size.

Dimensions: (the first number is the width of the back, the second is the width of the shelf)

50 x 40 mm
65 x 40 mm
75 x 45 mm
100 x 40 mm

Rack profile (CD).

For partitions, this type has special grooves along the shelf. The two extreme ones are intended for screwing in self-tapping screws, and the one in the middle indicates the place of joints of drywall sheets. The width of the back of the rack is identical to the guides. Because the PS is inserted into the PN.

Available sizes:

50 x 50 mm
65 x 50 mm
75 x 50 mm
100 x 50 mm

Reinforced (UA).

The profile is used for doorways in partitions. The main quality is strength and resistance to corrosion.

Profile dimensions:

length - from 3 to 6 meters
the height of the side parts - 40 mm
base width - 50 - 100 mm
workpiece thickness - 2 mm

Corner - (PU protective).

Designed to protect the corners and ends of plasterboard partitions from mechanical damage. There are holes on the surface of the profile so that the finishing solution can penetrate into them.

Length - 3 meters
Section - 25x25x0.4 mm, 31x31x0.4 mm, 31x31x0.5 mm

Beacon profile (PM).

Used for finishing works. Fastened with mortars to the required level. Helps to putty (or plaster) the wall evenly.

Length - from 2.5 to 3 meters
Width - from 22 to 60 millimeters
Metal thickness - from 0.33 to 55 millimeters
Beacon protrusion - 6 to 10 millimeters

Arched profile (PA) for drywall. Sizes and types.

This profile has cuts along the edges, thanks to which the metal product can be evenly bent and adapted to the construction of almost any complex structure. For example, make an arch or shelf in the wall, of an unusual shape. There are both concave and curved types of arched profile.

Sizes of concave arched profiles:

Radius from 500 to 5000 millimeters
Length from 2600 to 4000 mm

Convex profiles can be:

Radius from 1000 to 5000 millimeters
Length from 400 to 2600 mm

Aluminum and galvanized plasterboard profile. Sizes and types.

A profile for drywall, made of different metals, we will consider the most common types: aluminum and galvanized, as well as their characteristics.

Aluminum profile and its features.

Such a profile is not cheap, but it has an excellent performance, so the high price is justified. Such profiles are good for constructing window frames or decorating household appliances. For example, if you need to make a niche for a washing machine in the bathroom. This product is distinguished by its long service life, strength and lightness. Does not make the whole structure heavier and is very easy to assemble. It is flexible and resistant even to low temperatures. Builders recommend buying an aluminum profile for wall and ceiling cladding.

Profiles of this type come in both cold and warm aluminum. Cold-formed is made of 4 mm thick metal, and bends without heating. Differs in shape (P, W, T, H - shaped). Withstands loads up to 1.5 kN per 1 meter of wall.

Galvanized profile.

The galvanized profile is not inferior in price to the aluminum one. It is used for the construction of the base of the frame, in rooms with high humidity - in the kitchen or in the bathroom. This is because it is resistant to rust and does not require additional treatment with anti-corrosion agents. Like the aluminum, the profile is light and soft; it will not be difficult to screw screws into it. Galvanizing is also used to create additional stiffeners if the drywall sheets are thicker than 12.5 millimeters.

There is still plastic profile... Its purpose is to close the joints of the drywall sheets at the outer corners, giving a beautiful look to the finish. And also, they cover the transition of drywall and other material, for example, wood.

Additional accessories for fixing drywall.

In order to assemble the crate, you will need auxiliary parts:

Duplex connector for CD profile. Such a part is sold in an expanded, flat form and before starting work it must be bent in the shape of the letter P. It is used to connect rack parts perpendicular to each other.
Single-level connector for CD-profile or "Crab". They also connect perpendicular CD profiles. If the load is more than 20 kilograms, then you will need two self-tapping screws for fastening. Otherwise, the fittings are simply bent.
Direct suspension for rack (bearing) profile. This is a bracket, the standard length of which is 12.5 cm. It looks like a strip of aluminum or galvanized steel, with holes. Withstands loads up to 40 kilograms. It is attached to the wall with two dowel-nails, then the edges are bent and frame parts are already attached to them.
Anchor suspension for ceiling bearers. Often referred to as traction suspension. Replaces the above described part if its length is not enough. Used on horizontal surfaces such as ceilings.
Extension. It is needed to connect two carriers to each other. On the sides it has tubercles, this is the designation of the place where the profile is joined. There are also two holes for screwing in self-tapping screws.
Corner connector. It connects elements that do not form a cross. You can do without a connector. Cut off the shelves of the profile that needs to be connected so that a tongue is formed, and fasten with self-tapping screws.

Hardware for plasterboard fasteners.

Self-tapping screws are needed to connect all frame parts and to mount drywall. They also come in different types.

Tips on how to choose a profile and accessories for drywall.

Please inspect the profile carefully before purchasing. If you notice rust, then you should refuse to buy such material. If the corrosion has already begun, it is impossible to stop it!
Check the thickness with a vernier caliper. If it turns out to be insufficient, then during work, the screws will scroll.
Do not use a burr profile. Injure your hands as you work.
Take a closer look at the product from the end. If stored improperly in a store, it can be bent. With such a profile, you will no longer be able to create a perfectly flat structure surface.
Keep in mind that self-tapping screws will be difficult to screw into a profile where there is a weak notch.
Experienced builders are advised to double-check whether the dimensions correspond to those stated in the instructions and in reality. Some manufacturers deceive buyers, especially about the length, it may be less than it should be, 2 centimeters.
The quality of the mounting hardware should also be checked. Very often you come across self-tapping screws with a broken tip or with metal notches for a screwdriver.
Inspect the plastic plugs of the dowels well so that there are no sagging, otherwise it will be difficult to drive them into the hole, and sometimes even impossible.
Give preference, nevertheless, to the profile with punched perforations along the plank - it is more rigid and resistant to stress. Such a structure prevents the self-tapping screws from slipping, and makes it possible to screw them in at any angle.
Trust already proven manufacturing companies such as Knauf and Gyprok. But there are also our, domestic manufacturers who produce profiles for drywall no worse.
Some cunning sellers try to hide defects by painting the profile and adding shine to it. Take a closer look at such options, maybe you shouldn't buy them at all.
The product should not be flimsy and bend when pressed lightly.

And one last tip at the end of the article. Do not skimp on quality profiles and accessories. As the famous saying goes: "The miser pays twice." If you purchase a low-quality or damaged profile, then in the end, sooner or later, you will have to redo all the work. Somewhere the sheet will become a "bump", somewhere the joints will become visible, and somewhere the structure will bend inward. Therefore, choose the material carefully, pickiness will not be superfluous here. Good luck and easy work!