Standard sheet of drywall. Standard size drywall sheet. Average cost of rack profiles

A few decades ago, builders had an insufficient amount of knowledge about drywall. They achieved expressiveness and elegance on the surface with a proven tool - gypsum.

But today, times have changed, and new materials have replaced the old materials. To begin with, you need to carefully study the basic properties and select a drywall sheet of the desired size, after which you can get to work.

What is drywall?

Without certain knowledge, it is difficult to understand what plates or, as they are often called, sheets are.

Upon visual inspection of the material, it becomes clear that gypsum in the core. The core part is protected by cardboard layers installed on both sides of the product.

This material is often used for finishing work. It is liked by builders due to its properties that allow cover the surface with wallpaper or paint. If necessary, even a ceramic product can be glued onto drywall.

The material is different the following advantages:

moisture resistance;
the ability of the top layer to resist fire;
environmental friendliness;
the ability to bend, if required by the design of the room;
soundproofing properties.

If speak about water repellency, then not all types of products available on the construction market possess it. The material is presented in the following varieties:

Drywall is rightfully recognized as a natural material, because its main component is a gypsum layer, which occupies about 93 percent of the entire surface, the remaining seven percent is cardboard.

Despite the significant weight, such material bendable. It protects the wall from the penetration of extraneous noise due to its ability to soundproof.

If even greater sound insulation is required, craftsmen apply with the greatest thickness and use mineral wool as additional protection.

Some experts use the method of connecting two sheets and eliminating unnecessary joints and cracks. it enhances the soundproofing effect.

The standard dimensions of drywall are as follows: the width is usually the standard - it is 1.2 or 1.3 meters, the length is usually from 2.5 to 4.7 meters. The main thickness, which is often found in stores: 8, 9, 5, 14 and 16 mm.

Giprok

When choosing a material, many experts stop their attention on such a name as drywall, and they think that this is a special kind of drywall. Gyprock got its name in St. Petersburg, where it began to be delivered through Finland in the nineties.

In terms of structure, this material is ordinary drywall, but at the moment, in addition to the already familiar types of drywall, this manufacturer additionally offers special improved models for certain jobs.

These are types such as:

windproof sheet. It is distinguished by the ability to pass moisture and has a special composition of cardboard and gypsum, so it can be used for external work;
special sheet. This product is able to bend in a special way and is convenient when implementing design ideas;
floor sheet. To create it, the manufacturer uses thick gypsum with a special central part of high density.

Types and characteristics of drywall

Drywall, like other materials, is of several types used in construction for various purposes.

Basic drywall

This species is easily distinguished by its grey-yellow tint. It is also called standard. These sheets are used for interior decoration only.

If there is a task to create some kind of design idea, this material is perfect.

Do not use it in rooms with high humidity.

Heat resistant drywall

This type of material is resistant to open fire. It is often installed in rooms where there is risk of fire and spread of fire.

His core contains crystallizable elements, and the outer shell is not able to burn. It can withstand up to half an hour of fire exposure, and after the specified time, drywall will not emit an unpleasant odor or harmful substances, but it will start to char.

Such materials are widely used in industrial premises and offices. Manufacturers endow products with a light shade, and there are brands of sheets that prefer to produce in red tones.

moisture resistant

It is used for walls with high humidity. Similar material is often used in. The maximum percentage of humidity in the room where it is planned to sheathe the walls should be no more than 80 percent.

Moisture-fire resistant

The most durable type of drywall sheet, which is able to withstand water on the surface and not delaminate, and also prevents the spread of flames in case of accidental ignition.

According to the method of application, drywall is:

arched;
ceiling;
wall;
acoustic;
laminated;
restoration.

There are other, specialized types of drywall sheets. In particular, the manufacturer Knauf is distinguished by a variety of these products, you can learn more from the video below:

Application

The use of drywall plates is different, but most often they are used in places like:

when repairing residential premises, to create a reliable foundation for walls, floors, ceilings or partitions;
in basements where the humidity level does not exceed 70 percent;
in rooms intended for household purposes, also as floor coverings, walls and decorative elements;
when repairing terraces and attics;
in sanitary facilities, as a base for painting or tiles.

When installing drywall, you will need additional fasteners - profiles. And which ones - read on.

Drywall dimensions

During construction work are the most popular sheets with a large width: from 1200 to 1500 millimeters. Rarely, but sometimes designers and builders use plates of a smaller width - 600 millimeters.

The main types presented in modern stores are from 2000 to 4000 millimeters. Sheets are produced with different weights, usually it starts from 12 kilograms and ends with 35 kilograms.

There are also small sheets on sale, up to 2 meters long, if you do not need a lot of material or have difficulties with delivery from the store.

Knauf insert sizes vary. The length of products varies from 2000 to 4000 mm (in increments of 50). Width from 600 to 1200 millimeters. Manufacturers often offer sheets with dimensions of 2500x1200x12.5 mm.

The thickness of products starts from 0.65 cm - these are the thinnest models, and reaches 2.4 cm - for work with increased strength requirements to the product.

Optimal wall thickness

In order for the partition to be durable, its thickness should be from 9.5 to 12.5 millimeters.

If you choose the thickness of the product, it is better to stay on drywall with a greater thickness. This will reduce the consumption of the metal profile when installing the frame.

The thickness of the wall should be selected taking into account the load on its surface. If you plan to install shelves on the partition or hang pictures, then you should choose products with a thickness of at least ten millimeters.

If the landlord wants to place a shelf for TV installation, it is recommended to use drywall with a maximum thickness.

If the wall has a flat surface and will not be subjected to functional load, a thin material of 8 millimeters in size is allowed.

Impact on human health

Opinions about the dangers and benefits of drywall differ, but laboratory studies have long been made that can clarify this situation. Base material- This is gypsum and a cardboard layer.

Gypsum is a material that is produced from sedimentary rocks. This material is poured between two layers of cardboard.

Cardboard is also known to be safe for health.

It would be safe to say that the product is harmless to health, if not for the fact that recently, in addition to ordinary drywall sheets, structures with special waterproof and refractory impregnations.

The refractory material is protected by a special reinforcing mesh, and the waterproof material is impregnated with a solution against the formation of mold and fungus.

A conscientious manufacturer carefully monitors additives included in the composition, therefore, it can be argued that if you purchase a high-quality product, it will not harm your health.

However Not all manufacturers are decent in relation to buyers, and some of them add special impurities in order to reduce the cost of goods. These substances affect human life and health.

Another option for a negative effect on the body is the use of cheap drywall with crude gypsum. Such sheets Best used in non-residential areas.

High-quality sheets have a positive effect on health, creating a pleasant atmosphere in the house and performing the function of a material.

Do you know what not a single installer performing construction work can do without, and what materials will be required to equip a residential building, and what is preferred when roughing out an apartment? You will find the answer to these and other questions in today's article. After all, your attention is presented with an overview of such a universal material as drywall.

When mounting frame structures, make sure that exactly the sheathing material that is needed is at hand. Recently, plasterboard sheets (GKL) have been popular - rectangular slabs with a gypsum base and a sheath made of thick paper. Familiarize yourself with the classification, operation features depending on the microclimate conditions and decide on the appropriate dimensions of drywall sheets.

Without the presence of building material, repairs will be impossible, so make sure that all the necessary materials, tools and equipment are at hand. Try not to delay the purchase and take everything at once. After all, materials from different batches may differ according to certain criteria.

Target GCR Diversity

According to the purpose of the plate are divided into:

wall with a thickness of 1.25 cm;
ceiling - 0.95 cm;
arched - 0.65 cm.

Wall drywall is used for finishing walls and installing partitions, ceiling plasterboard for sheathing suspended ceiling boxes, and arched plasterboard for creating exclusive structures with curved lines, openings and partitions.

There are also sheets with non-standard parameters on the market: from 1500 to 4000 mm long, from 600 to 1500 mm wide and from 0.65 to 2.4 cm thick. This causes some difficulties in choosing, so consult a specialist before buying.

Remember that whole plasterboards are used only for facing large areas, and when repairing in a small apartment, they have to be cut into component parts of the required size.

Familiarize yourself with the typical characteristics of gypsum boards - an indispensable material in construction, repair, reconstruction and restoration of the normal state of houses and apartments.

Features characteristic of drywall boards

The size of drywall sheets is the most obvious parameter and the first point by which it is determined whether this material is suitable for the buyer or not. This item is characterized by the length, width and thickness of the slab. Installers answer that these are the main characteristics in technical terms, which directly affect the choice of one or another type of material.

The manufacturer offers slabs with a length of 250-300 cm and a width of 120 cm. On request, a slab with a minimum length of 200 cm and a maximum length of 400 cm can be pressed. Specially for DIY, small-format plasterboard sheets with dimensions of 150 x 60 cm are produced.

A common version of GKL with a thickness of 0.65, 0.95 and 1.25 cm. This parameter is given special attention, since according to it the intended purpose of the material is determined.

The thinnest sheets are suitable for creating curved shapes and designs. Material with a thickness of 0.95 cm is sometimes suitable for sheathing the correct form of ceiling structures. Wall partitions are mounted from the thickest slabs - 1.25 cm. The indicator also depends on the thickness of the plasterboard sheets:

1.25 cm - the thickest sheets, are characterized by an indicator of 322 N in the longitudinal and 105 N in the transverse direction.

Poor-quality material that does not meet the requirements is fragile, which affects the convenience of working with it and the stability of the finished structure.

Some additional characteristics of GKL

Unlike the technical parameters discussed above: the dimensions of drywall sheets, the thickness and strength of the material, the characteristics described below are classified as auxiliary. Among them:

color;
weight;
fire safety;
edge type.

Color

This indicator is determined by the purpose of the material. In the course of production, cardboard of different shades is used, setting the tone for one or another type:

GKL (standard) - gray;
GKLV (moisture resistant) - green;
GKLO (fire-resistant) - red, etc.

Thanks to the color separation, you can quickly and easily determine the type of material and choose the size of the drywall sheet.

Mass indicators

Depending on the dimensions, the weight of the plates varies significantly. Among the masters, the concept of the weight of 1 m 2 of drywall is common. So, ceiling GKL with a thickness of 0.95 cm weigh within 6.5-9 kg / m 2, and wall with a thickness of 1.25 cm - 8.5-12 kg / m 2.

Knowing how much this or that sheet weighs, you can determine which type of drywall with certain indicators is suitable for your case.

Edge type

Another indicator according to which gypsum boards differ from each other is the edge. The strength of future seams at the junction of the GKL also depends on its type. According to the strength characteristics of the joints, plates with a thin edge of the PRO type showed themselves best of all.

Types and standard sizes of Knauf drywall sheets

The world standard of materials in the production of frame-sheathing structures, as before, is assigned to the products of the German company Knauf. Experts and craftsmen of the company divide their products into several main groups, including:

Features of GKL marking

Drywall is a material that has a symbol that determines its properties and consists of:

The letter part denoting the type, group (combustibility, toxicity, etc.), type of longitudinal edges.

The digital part, which means the size values \u200b\u200bof the plasterboard for walls or ceilings (length / width / thickness in mm), GOST compliance standard.

Features of the use of GKL indoors

You already know that standard gypsum boards are used for mounting and installing frame structures and wall cladding in rooms with optimal humidity. The versatility and wide dimensional grid of the plates make it possible to use them both for the installation of partitions of any type, and for the installation of a false ceiling.

The plates have a wide range of applications and are suitable for various types of work in conditions with an optimal microclimate, as well as in extreme environments.

Application area

Read the information explaining what type of GCR, where it is used:

Moisture resistant - in rooms with high humidity, in particular bathrooms and kitchens. This is a great base for tiling.
Fire-resistant - in rooms to which special fire safety requirements are imposed, for wall and ceiling decoration of office and workshops of factory premises. Due to their properties and dimensions, gypsum boards for ceilings and walls are successfully used in the arrangement of the attic space of residential buildings.
moisture-resistant - in rooms where high humidity is combined with elevated temperatures. It is used to create frame ceilings and partitions in baths and saunas. It does not differ in size from the previous type. With a length of 200-400 cm, the width is 120 cm, and the thickness is 1.25 or 1.6 mm.

Features of the use of GKL in structures

Plates based on gypsum filler are used for a variety of purposes, and the features of operation and installation, depending on the situation, are determined based on an analysis of the type and scheme of the future structure.

Depending on the features of the use of the material in a particular frame structure, gypsum boards are divided into:

Having familiarized the reader with the features of the GKL, I would like to add that what size and type of drywall to choose matters. These are important factors and you should not forget about them not only when choosing a material, but starting from the stage of design work. However, the main feature of the plates is the atmosphere that develops in rooms finished with the use of gypsum boards.

Drywall is one of the most popular building materials. The main advantage of the material is that its use allows you to expand the range of design solutions and create structures of various shapes, decorate walls and ceilings in any room. This article discusses the parameters that allow you to choose the right drywall: price per sheet, dimensions, thickness, purpose, and others.

The size and price of a drywall sheet is determined by its size, thickness and the presence of additional characteristics.

The main material that is part of the drywall sandwich is gypsum. It is a natural salt, which is formed naturally from sea water.

Drywall construction

In order to obtain a gypsum plasterboard (GCR), the extracted raw material must undergo pre-treatment, which includes two processes:

burning. The temperature at which such a process takes place is approximately 180–190°C;
grinding.

For the manufacture of GKL of the desired shape, a solution is mixed with water, sometimes fiberglass is added. It is a component that significantly increases the deformation resistance of GKL, and also positively affects the refractory qualities. On both sides of the gypsum sheet, cardboard is fixed, which is environmentally friendly. Such cardboard is made from cellulose and impregnated at the production stage with special flame retardant additives.

The size of the drywall sheet is selected based on the area to be sheathed

The main types of drywall sheets

Depending on the purpose and technical features, all GCRs are divided into the following types:

standard;
moisture resistant;
fire resistant;
waterproof and fireproof;
acoustic.

Standard and moisture resistant plasterboard sheet 12 mm. Price per sheet and specifications

Standard GKL is used when it is necessary to perform interior finishing work. With the help of standard GKL, walls are leveled, and partitions, multi-level ceilings, etc. are equipped. To calculate materials for finishing work, you need to know the length and height of drywall sheets. Sheet dimensions are usually 2500x1200 mm. Cardboard for standard sheets is gray and is indicated by blue markings. Standard GKL are used in rooms with normal humidity.

With the help of drywall, you can not only level the walls and ceiling, but also create complex structures like arches or niches

Moisture-resistant plasterboard sheets are used in rooms whose humidity level exceeds the permissible values. But its use is advisable only if the room has an exhaust ventilation system. In turn, the front surface of the sheet must be provided with a waterproofing material (paint, primer, PVC coating).

The dimensions of the moisture-resistant gypsum plasterboard are the same as those of standard gypsum boards. Such sheets are used for the construction of slopes. GKLV in combination with waterproofing materials are used for sheathing work surfaces in rooms with a high level of humidity. These include the bathroom.

Useful information! Moisture-resistant drywall is characterized by increased strength; it can be used for decoration of public premises.

Drywall sheets are easy to work with, following the advice and recommendations of experts

The material includes various hydrophobic additives, due to which the sheet is able to absorb a minimum amount of moisture (no more than 10%). In this case, the sheet has a green color and is indicated by a blue marking. The price and size of a moisture-resistant drywall sheet may vary. However, products of standard sizes (2500x1200x12 mm) range from 295 to 395 r per sheet.

Fire-resistant, water-resistant and acoustic drywall

Refractory building products are used when it is necessary to finish a surface that is located in close proximity to a fire source (for example, the inside of a fireplace). This is exactly the option, which is mixed with fiberglass, which makes it resistant to fire.

Refractory sheets are used in rooms where the humidity level may be low or normal. Cardboard in this case can be either pink or red. Gypsum plasterboard refractory sheets are marked red.

Moisture-resistant drywall is used for sheathing structures, walls and ceilings in an environment with high humidity levels.

Waterproof and refractory gypsum board (GKLVO) has a high fire resistance coefficient, and also has a reduced water absorption. The combination of properties allows the use of such plasterboard sheets in baths and steam rooms. However, it can also be used for ordinary interior finishing work. GKLVO sheet cardboard is distinguished by green color and red marking.

Acoustic GKL differ from other varieties in that it has a high sound insulation coefficient. This property allows this material to be used for wall and ceiling decoration in concert halls, dance studios, as well as rooms where sound recording is made. The main difference between acoustic drywall and standard plasterboard is that its surface has holes, with a cross section of about 1 cm. The reverse side of the acoustic plasterboard is equipped with a coating that does an excellent job of absorbing sound waves.

Dimensions of drywall sheets: length, height and thickness

The standard length of the GKL is 2.5 m, and the width is 1.2 m. The following dimensions can also be attributed to the standard length: 3 and 3.5 m. In addition to standard sizes, you can find plasterboard sheets in markets and hardware stores, the length of which maybe 4 m. Sometimes there are sheets with a length of 1.2 m (small). The dimensions and prices of drywall are interconnected. For example, sheets with a thickness of 9.5 mm are cheaper than twelve-millimeter products.

For cladding walls, ceilings and other types of structures, drywall of different thicknesses is used.

The standard width of a drywall sheet is 1200 mm (1.2 m), however, there are products on sale in which this figure can be 2 times lower (625 mm). Such sheets will cost less.

As for the thickness of the GCR, the standard indicators include the following:

12.5mm;
9.5 mm.

Deviation from the thickness standard is also a common practice. If necessary, you can purchase GKL with a thickness of 6.6 mm. In this case, their mass will be much lower, as well as the cost of drywall per sheet. There are also sheets with a different thickness - from 8 to 24 mm, which can significantly expand their operational area.

The standard thickness of the drywall sheet is 12.5 and 9.5 mm

Differences between wall and ceiling plasterboard

The dimensions of wall drywall in the form of sheets may be different, however, they are all considered standard. The length of the wall plasterboard varies from 2000 to 4000 mm. The minimum width is 625mm and the maximum width is 1200mm. The standard thickness of drywall, which is used for wall cladding, is 12.5 mm.

Note! For wall decoration, sheets are most often used, the dimensions of which are 2500x1200x12.5 mm.

If it is necessary to sheathe walls in an apartment or house with high ceilings, then it is recommended to use sheets with the greatest length (4 m). Thus, we can conclude that the dimensions of the GKL are selected depending on the specific situation.

For walls, thicker drywall can be used, but for ceilings, 9.5 mm sheets are usually used in order to reduce the weight of the ceiling structure.

Drywall used for ceiling mounting should be lighter in itself to make the installation process as easy as possible. For sheathing ceilings, GKL with a thickness of 8 or 9.5 mm is used. The minimum thickness allows for a reduction in the weight of the suspended ceiling, which in turn allows you to reduce financial costs when purchasing profiles for fixing drywall.

The price of a plasterboard ceiling is much lower than in the case of installing wall material. If necessary, you can use the services of professionals who, on average, take about 250 rubles. for the installation of 1 square meter of plasterboard ceiling. The price per m2 of drywall installation on the wall and ceiling also depends on the complexity of the work.

Overview of the cost of installing GKL:

The price per m2 of installation of plasterboard partitions is calculated depending on the number of layers of drywall (1 or 2), as in other cases. Thus, we can conclude that the prices per sq. m. of drywall installation differ depending on the installation site, the complexity of the work (including the creation of curly elements), the number of layers of gypsum material, etc.

Installation of ceiling drywall is carried out using self-tapping screws and a screwdriver

In order to answer a common question: how much drywall sheets weigh, you need to familiarize yourself with the data presented below. The table below shows the dependence of the weight of the GKL on their dimensions.

GKL weight dependence on dimensions:

Note! The weight of the drywall sheet 12.5 mm is indicated for a reason. Such sheets are in the greatest demand among buyers.

Features and benefits of Knauf drywall

Knauf plasterboard is the most common material used for interior walls and ceilings. In many respects, its popularity is due to high quality characteristics.

Related article:

Step-by-step instructions for constructing a partition with a doorway. What materials and tools are needed.

Knauf products are manufactured by a German company that has a good reputation in the construction market. Consider the main advantages of this brand:

drywall sheets of this brand are lightweight, which significantly reduces labor costs during their installation. A standard sheet of Knauf drywall 12.5 mm weighs approximately 29 kg (with an area of 3 sq. M). Low weight allows you to save on the number of profiles;

Drywall from Knauf meets high quality standards, so it does not break or crumble during operation.

the use of such GKL allows you to choose the installation option on the work surface;
ease of installation. Installation of Knauf plasterboard can be performed by any owner who does not have special construction skills and knowledge. All that is needed for the correct installation of the GKL of this brand is to follow the instructions.

Note! Even ordinary KNAUF GCRs have a good sound insulation index.

Thus, Knauf gypsum plasterboards are the undisputed leaders in sales and are recommended as the main material for wall and ceiling cladding.

Drywall is sold at a price per sheet or per pack, depending on the size.

How much does drywall cost: an overview of the types and prices of various modifications

For each person who is going to use GKL for the interior decoration of his house or apartment, first of all, you need to study how much a drywall sheet costs. Prices that can be found on the Internet vary depending on the brands and sizes of the GKL. The price can be indicated both per square meter of material, and for a full sheet.

To date, there are quite different, in terms of cost, drywall sheets. If you wish, you can purchase very cheap products, the price of which will be no more than 150 rubles. per sheet. Inexpensive drywall will save on repairs, but you need to understand that when buying cheap material, you should not rely on high quality products. After all, the quality of any building material directly depends on its price. You can buy drywall in sheets with high quality standards from 230 to 250 rubles. per piece

The additional properties or type of drywall sheet are indicated by the color of the surface of the material and its marking

As mentioned above, the price of this finishing material also depends on the manufacturer's company. For example, the price of Knauf drywall is somewhat higher than in the case of other brands. For example, the cheapest sheets from this German manufacturer range from 220 to 240 rubles. per piece More expensive GKL from the KNAUF brand can be purchased for 300-340 rubles.

Comparison of prices for GKL of different brands:

Drywall: price per sheet with fireproof and moisture resistant properties

The above prices are for ordinary plasterboard sheets. It must be remembered that standard GCRs are not suitable for use in conditions of high humidity. The price for a sheet of moisture-resistant KNAUF drywall is 400 rubles with dimensions of 3x1.2x12.5 mm. Thinner sheets of moisture-resistant GKL can be purchased for 320–340 rubles.

Comparison of GKLV prices of different brands:

The price for a sheet of moisture-resistant drywall from domestic manufacturers is more affordable, due to the absence of the need for expensive transportation. But in order to purchase quality material, you need to pay attention to the price per sheet. You can buy moisture-resistant drywall from a domestic manufacturer for at least 300 rubles. (1 sheet).

Fireproof drywall has a red surface color and is used to increase the fire safety of premises or structures.

For sheathing surfaces located in the immediate vicinity of the fire source, heat-resistant drywall is used.

Comparison of GKLO prices of different brands:

Profiles for drywall: sizes and prices

Today you can find different profiles for drywall. The size and cost of these products also vary. The thickness of the metal profiles from the German manufacturer Knauf ranges from 0.5 to 0.8 mm. The ability to choose different thicknesses allows you to assemble frames that can withstand the required weight.

Metal profiles are designed to create a frame for plasterboard structures

Useful information! Profiles for drywall are equipped with anti-corrosion protection by means of galvanizing at the production stage. This procedure allows you to enhance their strength properties and extend the service life as a whole.

Profiles can have a different design, which allows you to perform building models of any configuration. Depending on the design features, all profiles are divided into several varieties.

Length of profiles of different types:

Rack profiles: description, use and prices

In the international nomenclature of building materials, such products are designated by the Latin letters CW. Such profiles are most often used for the installation of metal battens. Metal battens are needed to fix the plasterboard on false walls or ceilings.

The algorithm for using rack profiles is as follows:

First of all, the rack-mount strips are inserted into the guides, which are fixed along the perimeter of the false wall (or ceiling).
Next, the profiles are aligned in the desired plane.

The price of a drywall profile depends on the thickness, length and purpose of the product.

The structure made of profiles is the basis for further installation of the GKL. Planks, which are of the rack type, are produced in a width of 60 mm, and their height is 27 mm. The length of the rack bar can be different (from 2 to 6 meters).

If the length of the bar does not correspond to the specified goal, then it is possible to combine two or more bars into one profile. Docking of individual slats is carried out with the help of special fixing elements. If desired, the strips can be connected in such a way that they are perpendicular to each other.

Such profiles may have different markings, depending on the manufacturer. Marking of rack slats can be as follows:

CD (Knauf);
PP (Giprok).

With the help of drywall profiles, you can easily change the geometry of the room by mounting walls, arches or other structures.

The price of a profile for rack-mount drywall varies from 150 to 400 rubles per package. The range of prices is due to different brands of products, as well as dimensions. Packages most often contain a standard number of parts (12 pieces).

The average cost of rack profiles:

Guide profiles

This type of profile has the international designation UW. These products are produced in the shape of the letter "P". From the name we can conclude that such products are used as guide elements. When assembling the frame structure, racks or guides are fixed to them, after which drywall is installed. Prices for guide profiles vary depending on the length of the product.

The guide profile is used for mounting a vertical rack for fastening drywall sheets

The guide bar is 28 mm wide and 27 mm high. The guide rails are fixed to the work surface using dowels. The length of the guide part can be different (from 2.5 to 6 m).

Average cost of guide profiles:

Ceiling and arched profiles

The international designation of the ceiling profile is CD. Ceiling strips are used for quick assembly of frame structures that are fixed to the ceiling and then sheathed with plasterboard.

The most commonly used dimensions of the ceiling profile are 60x273x3000 mm

The thickness of the ceiling strips varies from 0.45 to 0.55 mm. The standard length of the ceiling profile is 3 m. The most common ceiling strips with dimensions of 60x27 mm.

The average cost of a ceiling profile:

A variety of arched planks differs from the rest in that they have a curvilinear shape. Arched planks are used to organize arched openings and other structures that have a complex shape.

Such products are marked with Latin letters CD and UD. When mounting such parts, it is possible to bend them along the required radius. This possibility is realized due to the fact that the body of this type of profile is supplied with holes and cuts at the manufacturing stage.

In the building materials market and in specialized stores, you can often find ready-made (curved) profiles. The bending radius of such a profile can vary from 0.5 to several meters, and the length from 2 to 6 m. Profiles of this type have a fairly wide range of prices. You can buy a profile for arched drywall for both 30 and 200 rubles. Here, the design feature of the part plays a very important role.

Arched profiles have a curved shape, due to which an even bend of the arch is formed

Useful information! It often happens that a profile with the required radius is not found on sale, and even straight arched notched models are not available. In this case, experienced craftsmen advise you to make notches on a regular profile and make a bend of the desired radius yourself.

Corner profiles

Products of this type are divided into two types:

protective;
plastering.

Plaster corner profiles are used to fix the corners of drywall constructions.

The first type of corner strips is used in order to ensure the protection of the outer corners of plasterboard structures (for example, in doorways). Fixation of the corner strip is made by plaster, which penetrates into the holes of the profile and securely fixes it in the required position. The second type is also called beacons and is used when plastering walls.

The cost of popular models of corner profiles:

As a rule, when assembling drywall structures, experienced craftsmen try to use materials from one company. For example, for fastening gypsum plasterboards, Knauf brands acquire Knauf profiles for drywall, of which there are many types and sizes. It makes no sense to use expensive drywall, but save on the profile, because the durability of the entire structure depends on the quality and reliability of the parts for the frame. And in order not to exceed the budget limit allocated for repairs, you need to carefully calculate the amount of materials, choose the optimal sheet size to minimize the amount of leftovers.

A few decades ago, builders had very little knowledge about drywall, and today no repair is complete without this versatile material. This modern coating is widely used in repair and finishing works. That is why it is worth getting acquainted with its main properties, dimensions and scope.

Material Features

GKL is a composite material made in the form of plates. The main component is plaster covered with cardboard. The raw material for the production of GKL is a gypsum core enriched with active additives that increase its density and strength. Due to this, the consumer properties of the material increase significantly, it becomes hard, but at the same time plastic.

The advantages of drywall sheet are obvious:

made of natural environmentally friendly materials;
differs in the property to maintain certain parameters of the microclimate;
bends well;
has a wide scope of use;
the acidity level of GCR corresponds to that of human skin;
has high soundproofing properties;

does not emit radiation, completely non-toxic;
has a low weight;
easy to mount on any surface;
allows you to insert lighting elements inside the structure;
has a fairly low cost;
when processed with a special composition, it exhibits great flexibility and plasticity.

GKL plates are widely used for:

formation of a smooth surface;
filling the cavities and openings formed during the work;
installation of partitions;
arrangement of niches;
formation of multi-level ceilings;
creating interior compositions - arches, columns, shelves.

According to its technical features, drywall is divided into several varieties:

standard;
fire resistant;
moisture resistant;
moisture-fire resistant.

The hygroscopic model is most often used to repair shower rooms, and combustible products are widely used in the construction of communication shafts, where water pipes, electrical wiring, telephone and Internet cables, as well as dust removal systems are subsequently installed.

GKL standard parameters

GKL sheets are of different types. GKL - ordinary drywall is widely used for sheathing ceiling frames on walls and ceilings in rooms with a standard humidity indicator. A standard sheet of a typical GKL has dimensions of 2500x1200x12.5, it weighs 29 kg. This type of sheet is covered with gray cardboard and is distinguished by blue markings.

GKLV - waterproof subtype of drywall, the active component in its composition is a special hydrophobic element, and the cardboard is impregnated with a special water-repellent solution. Its dimensions correspond to the parameters of a conventional sheet, the weight is approximately equal to 29 kg. The cardboard is painted green and has a blue marking.

GKLO - a model resistant to burning. This property is due to a special production technology - gypsum is fired under the influence of elevated temperatures and processed with a special mixture of reinforcing components. The mass of a standard sheet is 30.5 kg. The outer side of the cardboard is pink and the markings are red.

GKLVO - combines hygroscopicity and fire resistance. In the production of such drywall, raw materials undergo significant processing, which increases these two parameters. Standard sheets weigh 30.6 kg, the cardboard is green and the markings are red.

There is also a fireboard - a special type of GKL, which exhibits increased refractory properties. These plates resist burning for more than one hour and at the same time do not worsen their physical and technical characteristics. A sheet with dimensions of 2500x1200x12.5 cm and a weight of 31.5 kg has a thickness of approximately 20 mm. Cardboard and markings are made in the same color - red.

GKL parameters vary in accordance with the purpose of the material:

Wall is used for wall cladding, its thickness is 12.5 mm.
Ceiling serves to form multi-level structures, has a thickness of 9.5 mm.
Arched is used for the manufacture of arches, columns and niches, the thickness of such a sheet is 6.5 mm.

There is no single value for the width / thickness / weight of the GCR, only the most common parameters can be distinguished:

width - 600 mm or 1200 mm;
height - 2000 and 4000 mm;
thickness - 6.5mm, 8mm, 10mm, 12.5mm, 14mm, 15mm, 18mm, 18.5mm, 24mm 29mm.

It is these options that are widely represented in hardware stores. However, this does not mean at all that only a standard sheet will be required for work. If interior ideas require any special parameters, then the sheets should be ordered directly from the manufacturer, but you will have to order a whole pallet (pack). GCR parameters are determined according to SP 163.1325800.2014.

Width

As a rule, the width of the GKL is standardly equal to 1200 mm. Based on this, all risers of the frame installed for plasterboard cladding have a pitch of 400 and 600 mm. However, technology does not stand still, and in recent years, modifications with a width of 600 mm, as well as 2500 mm 2000 mm, have been on sale. Small-sized sheets are lightweight, which, of course, facilitates transportation, and even a non-professional can handle their installation.

Thickness

The thickness of the GKL sheet directly affects its scope. For example, for wall cladding and creating shelves, GKL 12.5mm is used. The thickness of the ceiling plates is less - 9 mm, but this type is quite rare on sale, so the ceiling, like the walls, is mainly sheathed with sheets 12.5 mm thick, only fewer profiles are used, and the step is 60 cm. For the manufacture of interior compositions, gypsum board 6 mm thick is used, such sheets are very plastic, they are optimal for creating arches, forming undulating decorative elements. However, such sheets do not withstand loads, so it is recommended to lay the material in 2-3 layers.

Length

Standard GKL has a length of 2; 2.5 and 3m. For ease of installation, individual manufacturers produce a sheet of 1.5; 2.7 and 3.6m. For small structures, the manufacturer can cut drywall to his customers directly at the factory.

Length often becomes a real problem during the transportation phase., therefore, drywall with a length of more than 2.5 meters is in rather low demand, respectively, it is presented on the market in a small assortment. Too long plasterboards can increase the unproductive consumption of material, for example, for a room 2.7 m long, you should not buy a three-meter sheet. This will result in a lot of clippings that are hard to use in any way.

Long options are heavier and more difficult to install, working with them requires the involvement of help, since it is rather problematic to cope on your own. At the same time, long sheets avoid unnecessary butt joints and create a perfectly smooth surface. Before you purchase a large drywall, make sure that it will go into the entrance, apartment, fit in the elevator.

The weight

When planning finishing work, you need to know exactly how much each drywall sheet weighs. This will help to correctly distribute the forces that will be required to complete all the work, as well as the ability of the structure to withstand a certain load. This is very important, as it will avoid defects and collapse of the structure in the future. The standard parameters of the GKL are 2500x1200x125 mm, while the sheet area is 3 square meters. m., such a plate weighs about 29 kg.

The usual GKL, as well as GKLV, in accordance with the standards, has a mass not exceeding 1 kg per millimeter of sheet thickness, and the GKLO and GKLVO index for each millimeter ranges from 0.8 to 1.06 kg.

1 sq. m. drywall sheet weighs:

5 kg - with a thickness of 6.5 mm;
7.5 kg - at 9.5 mm;
9.5 kg - with GKL 12.5 mm.

It is very important before starting work to correctly calculate the load per 1 square meter of coverage. If you plan to fix something heavy on it, for example, a wall is installed under water heaters, then give preference to completely blank plates, they can handle weights up to 150 kg / m2.

What influences the size?

The choice of drywall sheet size is extremely important as it reduces the amount of material used and overall repair costs. Among the most important parameters, thickness occupies a special place, because the strength of the GKL and, accordingly, the strength and capabilities of the structure itself largely depend on it. The thickness of the sheet should be selected, focusing on the type of planned work. The standard plasterboard for partitions has a thickness of 12.5 mm, it can withstand 50 kg of weight per square meter of sheet without stress, however, the prerequisite is the use of drywall fasteners, and the load must not be of an impact type. Such sheets are used to form walls and decorative partitions.

If it is necessary to mount a single large load on the wall, for example, hang an air conditioner, then in this case standard sheets of 12.5 mm can also be used. But at the place of installation of the load, additional reinforcement of the crate is required.

If you plan to fix several shelves or wall cabinets, for example, kitchen or corner decor products, then it is advisable to give preference to models with a greater thickness based on the following data:

A 14 mm drywall sheet can withstand a load of 65 kg / sq. m.
A 16 mm plate will cope with a weight of 75 kg per 1 square meter.
Thickness 18-20 mm is used for loads up to 90 kg/sq. m.
Sheet in 24mm accepts 110kg/sq. m.

If there were no thick sheets on sale, you can lay the standard GKL in several overlapping rows. This may be easier and more economical, given the low availability of thick sheets in the open market.

It is important to take into account the features of the room in which the repair work is carried out. If this is an apartment or a private house, then it is quite possible to get by with thin sheets, since the owners of the premises treat it with care and are unlikely to purposefully strike and mechanically damage it. If we are talking about industrial facilities or warehouses, then the strength of the structure comes to the fore in terms of safety, therefore, sheathing with sheets with a thickness of 14 mm or more is required here.

For the formation of interior structures, special GKL sheets with a thickness of 6 mm are used. They are plastic, bend well, so they are often used for mounting undulating decorative elements. But for arch installations, this thickness is not suitable, since it will not cope with the load. Preference should be given to denser sheets or to lay thin GKL in several layers.

If the owner of the premises plans to hang paintings on the walls, then it is worth purchasing a sheet with a thickness of 10mm. To mount a plasma TV, it is better to stop at the thickest sheet. Otherwise, the structure may collapse and the TV may break. If the wall is not subjected to load, then in this situation it is enough to limit the GKL to 8 mm.

Similarly, drywall is selected to level the ceiling and create multi-level coatings. It is necessary to know exactly what will be fixed in it, and what load will be per square meter of area. Experts recommend taking thin sheets with a thickness of 9.5 as a base point, they are lightweight, so they do not overload the floors. Such material easily withstands built-in lamps located at a standard distance of 60 cm from each other.

For conceptual multi-level ceilings, one should stop at a thinner GKL 6 mm thick, since the frame of this form is not so strong, and the pressure on it is higher, so you need to reduce the pressure on the floors to the maximum. In addition, thin plasterboards are easier to install and do not require a lot of time.

Before purchasing a sheet of drywall in a hardware store, you should make sure that it is of proper quality. Pay particular attention to storage conditions, as many vendors store material outside without any kind of weather protection or in warehouses with high levels of humidity. Constant exposure to moisture and temperature changes causes a deterioration in the technical and physical parameters of the material, which worsens its performance and in the future leads to the appearance of defects and collapse of structures.

Keep in mind that the technical conditions strictly prohibit the installation of pallets with gypsum boards on top of each other. The increased load causes the appearance of cracks, chips and deformation of the gypsum core.

It is not allowed to drag sheets of drywall over the ground or uneven surface. This can damage the top layer of cardboard, reduce the strength and durability of the material. It is the violation of these conditions that causes a large number of defective products in warehouses, and the buyer, especially when faced with the acquisition of FCL for the first time, may not even notice damage at the time of purchase.

Purchase products only in large hardware stores and have a good reputation and high traffic and fast turnover. There should not be stale goods.
Try to visit the warehouse and get acquainted with the storage conditions of the GKL. If you feel that the humidity in the room is increased, you should refuse to buy in this place.
When loading and delivering plates, inspect each sheet for chips, cracks, dents.
Be sure to control the actions of the loaders, this will serve as a guarantee of protection against damage to the goods.
If you plan to buy a large batch of plasterboards, then first take one sheet "for testing" - cut it with a knife and evaluate its degree of uniformity