Gkl sizes and types. Standard drywall sheet size

This article is an introductory article to a series of articles on drywall. In this series we will step by step consider the use of drywall in various structures. Articles in this series, and.

In this article we will look at what drywall is, what types of drywall there are, and what is their difference. Here are the main standard dimensions of plasterboard and the dimensions of profiles for plasterboard.

Drywall definition

Drywall is a slab (sheet) finishing material consisting of a layer of mineral base - gypsum, and several layers of paper on both sides, which perform two functions:

• protective function: the paper on the front surface is abrasion resistant (everything is relative, of course);
• the paper works in tension and restrains the internal stress of the gypsum, which can arise during work with it, and during the use of ready-made surfaces.

Paper does not compress; we will use both of these properties when working with drywall.

Types of drywall

Ordinary drywall (gypsum plasterboard). It is intended for finishing walls, partitions and ceilings in dry heated rooms.

Moisture-resistant drywall (VGKL). The cardboard is treated with a water-repellent and anti-fungal treatment, and the core is designed using additives that significantly reduce moisture absorption. Suitable for wet rooms: bathrooms, kitchens, garages.

Fire-resistant plasterboard (GKlO). Interior Such sheets contain mineral fibers and additives that give increased fire resistance to the sheathing of such gypsum board. It is used in places with high requirements fire safety.

Drywall sizes

The standard sizes of plasterboard sheets are as follows: the standard length is 2.5 and 3 m, width is 1.2 m, sheet thickness: 6 mm, 9 mm, 12.5 mm. Although most manufacturers usually offer a larger range. For example, compact sheets measuring 1200x600x12.5 mm are easier to work with, but they are a little more expensive, and more linear meters of joints will have to be sealed.

Important: The minimum thickness of wall cladding is 12.5 mm. Smaller thicknesses: 6 and 9 mm are available for arched, curved, radius surfaces. And, if you need to make, for example, a radius partition, then you need to use 9 mm sheets in 2 layers.
The common belief that 9 mm gypsum board is needed for ceilings is wrong; for ceilings it is also necessary to use 12.5 mm sheets. This is information provided by the manufacturer, and not by the seller in the store, who is unlikely to practice the use of gypsum boards.

Choosing drywall. What to look for when buying drywall and profiles

• They tried to sell me packing slips several times. This is an ordinary sheet of drywall, in principle exactly the same as all the sheets in the pack, but... The manufacturer releases ready-made sheets from the assembly line on large pallets in packs. These bundles are repeatedly slinged and lifted by trucks and other loading equipment. This causes the bottom sheet to break, and the manufacturer, knowing this, prints on this bottom sheet without the standard marking: “Packing list.” This sheet should not be sold, it should be thrown away as a defect, but more than once I had to explain to the sellers that I did not need a fight.
• The sheets must not have broken corners or torn paper; they must be stored horizontally in covered warehouses.
• When purchasing all components, pay attention to the thickness of the metal and the rigidity of the products.

Profiles for Civil Code: UD and CD

The CD profile should not be crushed by hand, and if you take the UD profile by the edge with one hand and lift it, the profile should not give the impression that it is about to break under its own weight. The strength of the entire structure depends on the thickness of the metal.

High-quality and low-quality profile

• Often, primed ends of profiles indicate poor galvanization or improper storage. Galvanization should shine evenly and there should be no white spots on it.
• CD and UD plasterboard profiles are standardly 3 and 4 m in length, although at the factory, upon pre-order, they can be made to any length. This may be justified if, for example, you need to sheathe walls higher than 4 meters, then you will not have to splice the CD lengthwise. But small volumes usually don’t leave much waste, because a lot of “short ones” are used.

In the next article we will cover the basics.

Depending on the additives contained in the core, there are four types of drywall. How to choose the right material for various works Today we’ll talk to experts about when you can save and when you can’t.

Drywall: types, technical characteristics and prices

Drywall - three-layer sheet material, consisting of two cardboard facing layers that reinforce a core of compressed gypsum.

GCR in the interior can be used both for technical purposes (leveling the curvature of walls, erecting false walls, partitions, flooring) and for decorative purposes (organizing suspended ceiling systems, multi-level wall structures, decorative volumetric elements).

Photo 1 - Volma moisture-resistant plasterboard sheet 1200x3000x12.5mm

GKL itself is a non-flammable material. The only element exposed to flame is the cardboard lining of the sheet. Due to the fact that the flammable cardboard and the heat-resistant core are connected end-to-end, i.e. There is no air cushion between them, cardboard will not burn either - only charring of this layer of material is possible.

IMPORTANT! Any type of gypsum board is not flammable, but do not confuse ordinary heat-resistant gypsum board and fire-resistant gypsum board - a material reinforced with special additives. Regular drywall sheet against long-term exposure high temperatures will begin to deteriorate as soon as the water contained in the gypsum (about 17%) finally evaporates.

Photo 2 - GKL plasterboard 12.5*1200*2500 Belgips

How to choose drywall?

The choice of gypsum board should be based on its intended use: any type of work indoors will have a specific look.

Selecting the brand and sheet size are secondary tasks.

Photo 3 - GKL KNAUF (KNAUF) 12.5 mm (1.2x2.5m)

Criterias of choice:

• type of work;
• sheet thickness and length;
• sheet weight;
• sheet edge type;
• brand/manufacturer;
• material price.

Photo 4 - KNAUF moisture resistant 9.5 mm

Types of drywall according to GOST 6266-97

IMPORTANT! Each type of gypsum board has its own color according to the standard.

• Standard gypsum board

Does not contain additives, intended for work in rooms where the humidity level does not exceed 70%: used for work on interior partitions, decorative and sound-absorbing structures, suspended ceilings (ceiling is distinguished). The color of the material is gray (less often blue).

You can hide any type of communications behind the ceiling frame for hanging gypsum boards. From the wall you can make a false wall or partition of any type up to 10 m high.

Photo 5 - GKL Knauf 2500*1200*12.5mm

Marking: GKL

Moisture-resistant gypsum board containing hydrophobic and fungicidal additives, suitable for work in wet areas. Waterproof can be used for cladding walls, ceilings in kitchens, bathrooms, toilets, used as a base for floors (a special type - floor) and for cladding window slopes. The color of the material is green.

IMPORTANT! Water repellent properties This type is reinforced by special impregnated cardboard; gypsum boards need to be insulated from moisture one way or another: painted or tiled gypsum boards will feel much better in a damp room.

Photo 6 - Magma regular GKL-A-UK

Marking: GKLV

IMPORTANT! GCR for floors is more often used in the “dry floor” technology: the floor is laid on a prepared base - a frame with filler, then it is secured with self-tapping screws. Quality products can be found at KNAUF. An example of a branded floor gypsum board is heavy-duty Knauf Bodenplatte boards.

Fire-resistant contains a special reinforcing additive - glass fiber, which increases the resistance of gypsum plasterboard to fire and prevents the possibility of fire and destruction of the material under the influence of high temperatures, therefore the heat-resistant type can be used as passive protection against fires.

Fireproof gypsum plasterboard is used in facilities with strict fire safety requirements, as well as in crowded places (stadiums, shopping and entertainment centers, train stations). Color: red.

Photo 7 - GKLV Danogips 2500x1200x12.5mm Moisture resistant

Marking: GKLO

Moisture-resistant type with increased resistance to open flame. Produced by KNAUF.

Photo 8 - Fire-resistant gypsum board (GKLO)

Marking: GKLVO

In addition to the main types, there are several more varieties:

• restoration - thinner plasterboard for cladding old structures and wood, it bends easily, due to which it can be used when making shaped elements;
• laminated (vinyl) - a regular sheet of plasterboard of any type, industrially coated with PVC film, due to which the sheets are immediately ready for finishing work upon installation (such a coating does not breathe well due to the film coating);

Photo 9 - Laminated Laspan

• reinforced - plasterboard with fiberglass additives;
• acoustic perforated - special soundproofing material for finishing lecture halls, cinema halls, recording studios and other similar premises that require additional sound insulation;

Photo 10 - GYPROC GKLA acoustic

• arched - a thin-layer gypsum sheet, often no more than 6.5 mm in thickness, due to this the material is quite flexible, it is easy to make curved elements from it such as the circumference of an arch, the lining of figured ceiling elements;

IMPORTANT! Drywall, perforated on one side with a special needle roller, also bends well.

• gypsum fiber or gypsum fiber board - the same gypsum board, but without cardboard sheathing, gypsum is reinforced through the use of fluffed cellulose waste paper and technological additives, which make gypsum board a more durable material than gypsum board (instead of plasterboard, prefabricated floor bases and partitions are better made from this material);
• tongue-and-groove slabs - gypsum is additionally fired, which gives the material additional strength (from these slabs you can build interior partitions and begin finishing without preparation).

Photo 11 - Tongue-and-groove slabs (GGP) Volma (hollow)

Drywall sheet size

The standard sheet should be rectangular:

• length - from 2,000 to 4,000 mm;
• width - from 600 to 1,200 mm;
• thickness - from 6.0 to 12.5 mm.

Each application area has its own sheet standards: thin arched gypsum boards are often produced in sizes 1,200/2,500/6 mm or 1,200/3,000/6 mm. A moisture-resistant sheet often has parameters of 1,200/2,500/12.5 mm (less often - with a thickness of 9 mm).

Photo 12 - Flexible, 6 mm (1200x2400 mm) arched

As for the length of the sheet, the step in changing dimensions is 500 mm: 2,000 mm, 2,500 mm, 3,000 mm, etc. A sheet 3 meters long is one of the most popular, because... According to technical recommendations, walls need to be sewn up to their full length (ceiling heights in typical apartment is 2.5-2.85 m).

The standard sheet width is 1,200 mm.

Photo 13 - Single-layer cladding on a frame made of CW and UW profiles - work flow diagram and material consumption

Drywall thickness

The thickness of gypsum plasterboard used in residential construction ranges from 6.5 mm to 12.5 mm. In this case, the thickness of the sheet varies depending on the purpose of the material.

IMPORTANT! The minimum gypsum board thickness of 6 mm is used only in sheets arched plasterboard to improve sheet bending.

Wall gypsum board with a thickness of 12.5 mm, ceiling - 9.5 mm (sometimes 12.5 mm with a mandatory increase in the frequency of installation of the profile), moisture-resistant and gypsum board - 12.5 mm each.

Photo 14 - KNAUF standard 9.5 mm

Drywall weight

When working with a material, it is important to take into account its weight: in accordance with it, fasten the frame elements in one way or another, and select fastening tools.

By generally accepted standards:

1. the weight of 1 m² with a thickness of 6.5 mm is 5 kg;
2. weight 1 m² thickness 9.5 mm − 7.5 kg;
3. weight 1 m² thickness 12.5 mm − 9.5 kg.

Sheet edge type

There are several types of longitudinal sheet edges (the diagram is shown below).

Photo 15 - Types of longitudinal edges

On sale you can find gypsum boards with edges such as PC (VR, KR), PRO, UK (AK), PLC (HRK), KS (VA), ZK (RK), PLUK (HRAK), VARIO, KPOS (gypsum fiber is produced with edges PC and FC).

Type	Characteristic
	Longitudinal edge rectangular shape. This type of drywall is used for “dry” installation, i.e. the joints of the sheets will not be laid after installation. This type is most often used in floor slabs and standard gypsum fiber sheets. The sheet is suitable for internal layers when making multi-layer sheathing or for forming packages from plasterboard sheets when filling the internal cavities of partitions (double plasterboard).
UK (lat. - AK)	Longitudinal beveled edge. They are subject to puttying using reinforcing surface sealing tape. Sealing seams at the joints of such sheets is carried out in at least three stages - the process is quite time-consuming.
	Modified beveled longitudinal edge with a slightly flattened shape (found only on Rigips plasterboard sheets). Joints are connected only with reinforcing tape
	Semicircular longitudinal edge. Reduces the labor intensity of the seam sealing process. For this type of sheet it is also not necessary to use reinforcing tape. Filling the seams with high-strength putty is performed in 2 layers.
	An analogue of the PRO edge from the Lafarge Gips companies, as well as the Polish branch of this company - Lafarge Nida Gips. The joints are connected only with reinforcing tape.
	Slightly rounded longitudinal edge. This type of joint can be puttied without additional gluing of reinforcing tape.
	One of the options for a semicircular beveled edge with a flattened shape, produced only on Rigips plasterboard sheets. The sheets can be joined using putty compound with or without reinforcing tape.
	Folded longitudinal edge. This type of edge is mainly found only on gypsum fiber sheets. Reinforcement of the edge of the FC under plaster is done with paper tape (serpyanka).
	Semi-circular, slightly beveled edge (alternative to HRK edge). To seal the seams, the joint is sealed with reinforcing tape and puttied. This version of the plasterboard edge allows the use of joint sealing technology for AK edges, as well as filling joints using HRK edge board technology.

Photo 16 - VOLMA moisture resistant 2500x1200x9.5
Photo 17 - GKLV sheet 1200*2500* 9.5mm MAGMA

In home repairs, sheets with beveled edges on the front side of the sheet are most often used - these are edges of the UK and SHTUK types.

IMPORTANT! When cutting slabs, a cut edge inevitably appears, and there is no protective layer of cardboard on the cut edge, so before processing the seams of such sheets, a chamfer is made on the edges with a plane or knife. Next, use the putty mass, covering the seam with reinforcing tape.

Photo 18 - Knauf restoration (GKLR) 2500x1200x6.5 mm

Brand and manufacturer

In terms of price/quality ratio, the German company KNAUF remains the permanent leader, holding up to 70% of the drywall and components market.

Among foreign manufacturers we can highlight the French company Compagnie de Saint-Gobain SA (it owns the trademarks Rigips, Giproc and Nida Gips) and the Scandinavian manufacturer

Drywall is divided into ordinary (GKL), moisture-resistant (GKLV), fire-resistant (GKLO), universal GKLVO (moisture- and fire-resistant), acoustic and gypsum fiber (GVL).

Any type of plasterboard sheet can be used for the following purposes:

1. For leveling the ceiling, arranging suspended ceilings, creating ceiling decor. Finishing ceilings with plasterboard is one of the most popular types of work. Electrical wires and utilities, exhaust ducts are quickly and cheaply hidden, and unevenness and imperfections in the ceiling surface are smoothed out.
2. For creating partitions, boxes and temporary walls. The weight and thickness of the material, its profile make it possible to build a partition that will not differ from the main walls.
3. For leveling walls and surfaces. There is nothing better than a sheet of this material for making... smooth walls ideal.
4. To create various relief elements, interior architectural compositions for any size.
5. To fill unwanted voids.

Designation	View	a brief description of	Application area	Cardboard color	Color markings
GKL	Regular		Used in buildings and rooms with dry and normal humidity conditions according to SNiP 23-02-2003	grey/grey	blue
GKLO	With increased resistance to impact open flame	Different from the usual special reinforcing additives to the core material		grey/pink	red
GKLV	Moisture resistant	Differ from normal use hydrophobic additives	They are used in the same way as conventional gypsum plasterboards, as well as in rooms with high humidity, providing exhaust ventilation and subject to protection of the front surface, for example: waterproofing, waterproof primers, paints, ceramic tiles	green/green	blue
GKLVO	Moisture-resistant with increased resistance to open flames	They differ from conventional ones in the combination of properties of GKLO and GKLV		green/green	red

Drywall for finishing works must be selected based on its properties and purpose. Plasterboard sheets can be divided into:

• Regular plasterboard;
• Moisture-resistant gypsum plasterboard;
• Fire-resistant gypsum plasterboard;
• Universal GKLVO;
• Acoustic.

There is also a type of building material made from gypsum and cellulose - gypsum fiber sheet GVL.

Regular drywall plasterboard

Regular or tongue-and-groove plasterboard sheet GKL is intended for carrying out interior finishing work: leveling and manufacturing walls, installing partitions, multi-level ceilings, window slopes and cladding indoors with dry and normal humidity conditions according to SNiP II-3-79. Standard gypsum board can be distinguished by the gray (less often blue) color of the cardboard and blue markings.

Moisture-resistant plasterboard GKLV

Moisture-resistant plasterboard GKLV is suitable for work in wet rooms with a high content of vapors in the air in accordance with SNiP II-3-79 with the provision exhaust ventilation and subject to the protection of the front surface with waterproofing, paints, moisture-resistant primers, ceramic tiles, or PVC coatings. Slopes are made from moisture-resistant plasterboard. Using coating-type waterproofing, it can also be used to cover walls in a shower room or swimming pool. However, it is not necessary to use GKVL only where humidity is high. Standard size moisture-resistant plasterboard and its increased strength allow it to be used like regular plasterboard for covering any structures indoors. Ideal for finishing kitchens, bathrooms, garages, finishing slopes and creating a base for flooring. Moisture-resistant gypsum board differs from regular drywall impregnated cardboard, as well as special additives in the core material (silicone granules, hydrophobic and antifungal components). The material absorbs no more than 10% moisture. Moisture-resistant drywall can be identified by the green color of the sheet and blue markings.

Fire-resistant plasterboard GKLO

Fire-resistant plasterboard sheet GKLO is used in finishing fireplace portals, as well as other places near sources open fire. Thanks to special reinforcing additives (fiberglass) in the core material, such drywall has increased resistance to open flames and should be used in rooms with increased fire safety requirements. GKLO is used in buildings with dry and normal humidity conditions according to SNiP II-3-79. As a rule, fire-resistant plasterboard is used for finishing attic and production premises, ventilation shafts, electrical panels, ideal for finishing the kitchen, creating air ducts and communication shafts. Fire-resistant plasterboard sheet can be distinguished by the gray (less often pink, red) color of the cardboard with red markings.

Waterproof and fireproof plasterboard GKLVO

Universal plasterboard GKLVO has reduced water absorption and increased resistance to open flame and moisture penetration. Mainly used to achieve the required class of fire resistance and moisture resistance of structures in damp and wet rooms: saunas, steam rooms, baths. It is suitable for work in buildings and rooms with damp and wet humidity conditions according to SNiP II-3-79 with provision of exhaust ventilation and with the condition of protecting the front surface with paint and varnish, waterproofing, ceramic tiles, moisture-resistant primers, or polyvinyl chloride coatings. GKLVO can also be used like regular gypsum board. As a rule, water- and fire-resistant plasterboard is most often used for finishing industrial premises that have high humidity and have increased requirements for compliance with fire safety standards. Moisture-fire-resistant plasterboard differs from ordinary plasterboard by special reinforcing, hydrophobic and antifungal additives in the core material. GKLVO drywall can be distinguished by the green color of the sheet and red markings.

Acoustic drywall

Acoustic plasterboard has increased sound insulation and is widely used for finishing shops, concert halls, dance and recording studios, sleeping quarters. Acoustic plasterboard differs from universal plasterboard in that holes with a diameter of about 1 cm are made in its surface, and with reverse side the sheet is covered with a special sound-absorbing coating that absorbs sound waves well. Acoustic drywall can be painted, but cannot be puttied, so as not to affect its soundproofing properties.

Gypsum fiber sheet GVL

Gypsum fiber sheet GVL is an environmentally friendly building material based on gypsum and cellulose fibers (fluffed cellulose waste paper). GVL has increased strength. Compared to plasterboard, gypsum fiber sheet has increased rigidity, moisture resistance and heat resistance. GVL is moisture resistant, hard and durable. It is not exposed to fire and has a smooth surface, so no primer is required before finishing. Gypsum fiber sheets are used when installing dry floors, for outdoor work, and for assembling structures frame houses. It is suitable for work in buildings and rooms with wet conditions according to SNiP II-3-79.

Standard sizes of plasterboard sheet

Drywall is manufactured in three main standard sizes:

• 2000mm x 1200mm;
• 2500 mm x 1200 mm;
• 3000 mm x 1200 mm.

However, on the shelves of construction stores you can also find plasterboard with lengths of 1200 mm, 3500 mm and 4000 mm. Standard width plasterboard sheets 1200 mm (120 cm). However, sheets with a width of 625 mm are also available for sale. The standard thickness is usually 9.5 mm or 12.5 mm. Sheets with thicknesses of 6.6 mm, 8.0 mm, 14.0 mm, 16.0 mm, 18.0 mm, 20.0 mm, 24.0 mm are also produced. Drywall is easily cut with a stationery tool or construction knife. This way you can get any required sizes.

Plasterboard sheets are a very popular material today. It is mainly used for cladding walls and ceilings. It is also often used for the manufacture of partitions and various types of decorative elements. The dimensions and thickness of gypsum board sheets may vary. They should be selected in accordance with what exactly they are intended to be used for.

What is the material

GKL are special sheets made of gypsum and covered on both sides with multilayer cardboard. Their main advantages include ease of processing, low weight, and environmental friendliness. Also, gypsum board is quite different high degree strength. Cardboard protects the gypsum sheet from mechanical damage and destruction as a result of internal stress.

Today you can find on sale following types drywall:

wall;

moisture resistant;

fire resistant;

• ceiling

Wall plasterboard

This is the most popular and frequently used variety. As you can already judge from the name, this material is used primarily for wall decoration. This is the heaviest of the gypsum boards. The dimensions of a sheet of wall plasterboard are 1.2x2.5 m. There are also varieties of the same width, but shorter or longer: 1.5, 2, 3 meters.

The length of the wall plasterboard is 12.5 cm. This allows it to be used as a base for the heaviest Decoration Materials: tiles, decorative plaster, porcelain tiles, etc. GKL sheet size 12.5 is standard. Therefore, it is not difficult to calculate the number of slabs required in a particular case. You just need to divide total length walls at 1.2.

Making partitions during the redevelopment of a room is also what wall gypsum board is used for. The dimensions of this type of sheet and the thickness of the material allow you to quickly assemble strong and durable structures.

Wall plasterboards are usually mounted on metal or wooden frame. In this case, the joints are sealed with special means. The result is perfectly smooth walls. Sometimes sheets of this type are also used for ceiling cladding. However, since they are too thick, they are mainly used only to create smooth surfaces.

Ceiling sheets

This is also a fairly popular type of gypsum board. The dimensions of the sheet (their thickness is 9.5 cm) of this type are usually 1.2x2.5 m. GCR of this type is used to create various kinds of curved and wavy structures on the ceiling. Due to their smaller thickness, such sheets bend much easier than wall sheets. In addition, they are lightweight, and therefore, when installing them, you can use a smaller number of fastening profiles.

Of course, this type is inferior in strength to wall gypsum plasterboard. The dimensions of the sheets of this type of plasterboard are the same, but the thickness is less. However, since mechanical stress on the ceiling they are exposed extremely rarely, special significance it doesn't have.

Arched drywall

This variety is used when carrying out finishing work much less frequently than the first two. The thickness of arched plasterboard is only 6.5 cm. Therefore, it can be bent without soaking in water, using needle rollers, etc. This type of plasterboard is used mainly for the manufacture of various kinds of decorative elements.

Also, sometimes strongly curved parts of ceilings and partitions are made from it. However, in this case it is usually mounted in 2-4 layers. Due to its very small thickness, this type of gypsum board is, of course, no different in strength.

Moisture-resistant and fire-resistant plasterboard

These two types have a standard thickness of 12.5 mm. Moisture-resistant gypsum plasterboard is used for finishing bathrooms, swimming pools, restrooms, that is, rooms with high humidity. This type of plasterboard differs from ordinary plasterboard in that it has green color and is not afraid of water. Otherwise, it is completely identical to wall gypsum plasterboard. The dimensions of this type of sheet are also 1.2x2.5 m.

Fire-resistant plasterboard is used mainly for finishing stoves and fireplaces. The dimensions of slabs of this type are also standard - 1.2x2.5 m.

Small sheets

IN Lately On sale you can find plasterboard in other sizes: 0.6x1.2, 2, 2.5, 3 m. Such sheets are convenient for finishing the slopes of doors and windows. Their thickness is standard - 12.5 mm. Despite their strength, they are not used for finishing large surfaces and making partitions. The fact is that if there are many joints in the casing, it will turn out to be unstable, and therefore not of very high quality.

Manufacturers

Of course, when purchasing gypsum plasterboard, you should pay attention not only to its type and size. You also need to look at who issued the sheets. The most popular in our time is plasterboard of the Knauf brand. This manufacturer produces sheets from the highest quality material, so they are strong and durable. The size of the Knauf gypsum board sheet is standard. Options are available in widths of both 1.2 and 0.6 m. The length can be 1.5-3 m.

Brands of drywall such as Rigips and Lafarge are also very popular in our country. GCR from these manufacturers is also distinguished by its quality, durability and ease of installation. The price for all three brands of drywall is approximately the same.

Thus, we have found out which one has standard sheet GKL size. 1.2x2.5m - in fact, very convenient dimensions, allowing you to build reliable partitions and install durable finish. If you need to cover slopes, ceilings or make some decorative elements, you can always select sheets of other, more suitable sizes or thickness.