Modern renovation requires materials that would give maximum opportunities, this is what drywall is now. With its help, you can erect walls, partitions, level surfaces, do everything that will decorate, change and transform a living space.
For the correct work with such material, it is important to know its features, and to calculate the amount, you need to understand what the sizes of drywall sheets are.
Types of material
Drywall as a composite material has found application in the repair of a wide variety of premises, with its help new structures are created, existing ones are improved and the structure of the premises is changed thanks to extensions, walls and partitions. To use this material correctly, you must be able to select it for a specific type of work.
There are several types of drywall:
Usual, which is marked with the abbreviation GKL. Inside the product is gypsum dough, which is covered with thick cardboard on both sides. It is most convenient to use such sheets for interior decoration. It is important to use them where the humidity will not be elevated, otherwise the material will swell and lose its external qualities, which will affect the reliability of the entire structure. It is convenient and quick to work with sheets of this type, they are lightweight, flexible and economical
The most common area of use is working with the ceiling, less often with the floor, but most often it is taken precisely for walls, to align them or create new ones.
- Fire retardant, which is called GKLO, is most favorable for use in non-residential premises, creating partitions. With its help, you can protect the space from the threat of fire, which makes it possible to use it for fireplaces and stoves.
- Moisture resistant, has the designation GKLV, is used in rooms where the humidity level is significantly increased, this is a kitchen and a bathroom. To ensure such properties, substances are added to ordinary drywall that help not absorb moisture, thereby preserving all the characteristics of the sheet. This option is good at resisting the formation of mold and mildew on its surface. If the rooms have too high a level of humidity, it is recommended to use a different finishing option for them, because the drywall will nevertheless begin to deteriorate from an excessive amount of moisture.
- Fire and moisture resistant, with the GKLVO marking, is distinguished by the presence of resistance to both fire and water.
If you need to build special building structures, then you can select additional types of material that have different levels of thickness, these are:
- arched variety with a thickness of 6.5 mm;
- ceiling, which has a thickness of 9.5 mm;
- wall the thickest variation, where the thickness is 12.5 mm.
The thinnest version is needed to create interesting curved structures both under the ceiling and as a pier. The ceiling type is well suited for leveling the surface of the ceiling or creating an interesting design with backlighting from the top of the room. The wall type is appropriate both for leveling walls and for interior partitions, which, due to its thickness, helps to achieve good sound insulation.
The size of drywall can be different, which is convenient in the case of large repairs or the elimination of small surface irregularities. To be able to buy the required amount of material, there are standard dimensions of this material, where the sheet width is 1.2 m, and the length varies from two to three and a half meters … In addition to these characteristics, it is worth considering the thickness of the gypsum board, which affects the total weight. Its fluctuations can be within 65 mm and reach 125 mm.
Differences in thickness are extremely important for ceiling structures, the lighter they are, the easier they are to install and there is no risk of breakage. In addition, the lighter weight allows fewer supports to be installed, which reduces the cost of repairs. Each sheet has a different cost: the thinner, the cheaper, which makes it possible to save money, if the design allows.
Due to the fact that various companies have begun to produce these products, and each seeks to gain its own authority, there are cases when the dimensions of gypsum plasterboard sheets do not coincide with the standard ones.
Typical indicators of the length of a drywall sheet are:
- the minimum indicator is 2 meters;
- the maximum option is 3.6 meters.
If we consider Knauf products, then here we can note the maximum indicator of 4 meters. The difference between the size range of each option is 50 cm. The greater the height of the sheet, the stronger and thicker it should be, and, accordingly, heavier. Most often, the maximum dimensions are used in large spacious rooms for a large amount of work.… Thus, it turns out to increase the pace of repairs, reduce waste and reduce the cost of materials costs.
For experienced builders, it is not difficult to work with any size of the product, and for beginners it is better to start with small sizes, which are easier to measure, cut and make the necessary product. Long sheets are better for walls, ceilings and floors, and short ones for finishing windows and low partitions.
The width of the gypsum board is a standard unit and is 1.2 meters. Whatever the length of the sheet, this parameter remains unchanged, and only the thickness increases to increase strength and prevent brittleness. If there is an urgent need to find a small sheet of gypsum board, then Knauf will help here too, because in their assortment there are products from 60 cm wide, which for some cases will be the best option.
Non-standard width will fit when it comes to repairing slopes on windows, after replacing wooden products with plastic ones. In this case, it becomes necessary to close the hole that remained from the second frame, and to make the surface of the wall even. But also small pieces in width are suitable for creating a variety of drywall structures that will have small dimensions.
It is much more convenient to work with such plates than with full-size ones, which means that anyone, even a beginner, can cope.
Depending on the size of the drywall sheet in length and width, the thickness of the product also changes. This is due to the fact that the pressure on the material increases, and without proper reinforcement, the cardboard will not withstand, and the gypsum mass will destroy itself. For small dimensions of gypsum board, the thickness will be 6.5 mm, for larger ones - 9.5 mm, and the largest indicator is 12.5 mm. If a particularly complex object is being erected, which must be as strong as possible, then it is worth using a plate with a thickness of 24 mm.
The choice of thickness depends on what exactly will be made of the material. If this is an interior partition without any functions, you can use thin and medium options, if it has a shelf for books, then the requirements grow, and it is better to take a medium or thick sheet of drywall.
For those cases when a constant and considerable weight will act on the surface of the gypsum board, or there will be a valuable item like a TV on it, it is best to use the thickest type of plate.
Depending on the parameters of the length of the sheet, its width, and including the thickness, the weight of the sheet will also change.
If sheet is equal:
- 1200 by 2000 with a thickness of 6.5 mm, its weight will be 12 kg;
- 1200 x 2500 mm with the same thickness, the weight will increase to 15 kg;
- 1200 x 3000 with a thickness of 6.5 mm, the sheet weighs 18 kg.
The weight changes in proportion to the thickness of the gypsum board, as follows:
- 1200 x 2000 with a thickness of 9.5 mm will weigh 18 kg;
- 1200 x 2500 x 9.5 mm will weigh 22 kg;
- 1200 x 3000 mm with the same thickness will weigh 27 kg.
If the first two options can be used on the surface of the wall and ceiling, then the third is not suitable for suspended structures due to the significant weight of the sheet, since:
- 1200 x 2000 with a thickness of 12.5 mm, weight is 23 kg;
- 1200 x 2500 x 12.5 mm will weigh up to 27 kg;
- 1200 x 3000 mm with the same thickness will weigh 35 kg.
Knauf drywall has a greater number of product options both in length and in thickness, in addition to the standard 6.5, 9.5 and 12.5 mm, there is also 15 mm.
The weight of the gypsum board sheet of this company will have the following indicators:
- 1200 x 2500 x 15 mm weighs 15 kg;
- GKLV with the same indicators will weigh the same;
- The weight of the GKLO of the same dimensions will be from 13 to 16 kg;
- the same indicators will be for the GKLVO sheet.
Only after understanding all the numbers and values, you can choose the appropriate version of the product and start working with it, otherwise it will be difficult to hope for an easy repair process and a good result.
What do the dimensions depend on?
A standard drywall sheet has only one stable indicator, and all the others can vary depending on the scope of its use. For the correct choice of material, you need to understand which type is suitable for which work.
There are such types of GCR as:
- arched sheets;
- acoustic, perforated;
- vinyl coated sheets.
Acoustic drywall sheets are best used for large spaces such as auditoriums or halls that need to have an acoustic effect. If we consider vinyl sheets, then their undoubted advantage will be the readiness of the material for use, no treatment needs to be applied to the surface. The scope of its use is narrower due to the inability of the material to breathe.
As for the arched version, it is the most versatile, having a small thickness, so you can create any compositions with it.
If it comes to the wall type of the product, then it is necessary to exclude thin sheets, which in this case will be inappropriate. Only the use of 12 and 15 mm gypsum boards will allow you to build a reliable and strong wall.
If it is necessary to clad the wall, then the ideal option is a 9 mm sheet, with which it will be convenient to carry out all the necessary manipulations.
Choosing options for future walls or walls in the bathroom: you can also use drywall for this room, with the help of a moisture-resistant option it will be possible to avoid getting wet and delamination of the material.
Knowing the types of products and their sizes allows you to choose the right material for repair. If you need to finish the whole room, then standard sheets will be the best choice. In the case when the walls in the room have a non-uniform height, it is more convenient to buy non-standard sheets that are half the size. For places that will have to withstand heavy loads, the thickest type of product should be used.
When planning the manufacture of an interior partition, it is best to use the longest gypsum board, which can reach 4.8 m, which will significantly speed up the repair process and save you from buying unnecessary materials.
If such partitions are radius, then it is advisable to use two sheets together at once to strengthen the structure.
For aesthetes, and those who seek to make something unusual and beautiful in the house, you will need a designer type of gypsum board, which is also called arched due to the fact that its thickness is only 5, 6, sometimes 6.5 mm, it can be easily bent. In order for such a product not to burst from loads, it contains as many as two reinforcing layers.
If we talk about non-standard materials, then it is worth remembering the sound-proof type from the Knauf company, which has increased hardness and, in addition to the standard thickness of 12.5 mm, there are also 10 and 15 mm options.
The choice of product thickness is dictated by the location. Thin sheets are attached to the ceiling so as not to overload the structure, medium and thick sheets can be laid both on the walls and on the floor … To create original compositions, a thin material is needed, for damp rooms it is moisture resistant, and in the case of contact with a strong heat source, fire-resistant drywall is required.
Only by correctly choosing the varieties and sizes for the product, you can optimally calculate the amount of materials for work and make repairs with minimal loss of time and costs for it.
Overview of the offers of different brands
When planning significant repair work, for which you will need drywall, you need to know how to choose it correctly, and most importantly, what brand of product to pay attention to. Due to the fact that the popularity of this finishing material is growing, more and more new brands appear, in which you can easily get confused and make the wrong choice.
If we talk about the most popular company, then this is the German manufacturer Knauf, which oriented its products regarding the purpose, which was reflected in the characteristics:
- the ceiling version has a thickness of 9.5 mm;
- wall - 12.5 mm;
- for various designs of fancy shape - 6.5 mm.
The standard length is 2.5 meters, but there are other options, more and less of these indicators. The smallest leaf length is one and a half meters, and the largest is 4 meters. The width here also deviates from generally accepted standards, the minimum is 60 cm, and the maximum is one and a half meters. The thinnest sheet is 6.5 mm, and the thickest one reaches 2.4 cm. All these indicators also affect the weight of the product, which can vary from 13 to 35 kg.
Like any professional company, Knauf produces not only a standard version of the sheet, but also one that is suitable for wet rooms, for the manufacture of structures in contact with fire, and a mixed type.
The quality of products has been tested over the years, this brand makes durable products that are lightweight, good flexibility, easy to cut and easy to grind.
If we talk about the domestic representation, then the clear leader here will be the Volma brand, which is distinguished by a mass of positive qualities, these are:
- ease of the installation process;
- reliability of materials;
- excellent strength indicators;
- wear resistance;
- the presence of an edge that prevents crumbling of the sheet;
- reinforced construction for bending gypsum board;
- environmental friendliness;
- optimal price level.
If we compare with global brands, we can note small nuances that are negative for this brand. For example, there are no marking lines on the sheets, the weight of the drywall itself is large, and the surface is slightly wavy, which requires additional processing.
Another brand is LaFarge, which is widely represented in the world, and is rapidly increasing the number of points of sale for its goods. Thanks to the good turnover, the company's pricing policy allows not to overstate the cost, making the products available to almost everyone. A feature of this production is the production of sheets with a rounded bevel and edges, which are pasted over with a cardboard film. It was this innovation that made it possible to make a perfectly flat surface.
If we note the shortcomings, then we can only highlight a small size range, namely, only 2 types with a length of 2.5 and 3 meters. The weight of the sheets is small and usually does not exceed 9 kg. Despite the lightness, the material is very durable and allows you to well insulate sound and heat … A special series in production are sheets, with which you can create arches and various curved structures.
Another interesting firm is Gyprocrepresented by the Scandinavians. At the moment, it is a leading brand that has earned its popularity with environmental friendliness of materials. Thanks to the special approach and choice of materials, the sheets are even lighter, which has also become an advantage of the products of the Gyproc brand.
Drywall from this company can be used indoors, for which sheet options are presented from two and a half to three and a half meters in length, but with a standard width.
There are other brands that have their own differences. Products of the company "Magma" is presented on the market with a wide variety of products, among which there is drywall. Its quality is not bad, but it does not differ in any significant indicators. When choosing a brand, it is important to clearly understand what characteristics the product should have in order to find the optimal solution.
If it is important to cover the maximum area with the minimum number of sheets, then it is better to choose Knauf, which will also help in the case when small panels are needed.
There are times when the products of little-known companies turned out to be of high quality and inexpensive, but often famous counterparts significantly exceed the cheap ones in quality, materials, environmental friendliness and other important indicators, so it is important to make the right choice.
How to make correct calculations?
In order to correctly calculate the required amount of drywall for repair, the first step is to make all measurements of the repair area, be it walls, floor or ceiling. The choice of sheets is carried out according to the principle of selection of a greater length, so that you can cut off the unnecessary part, rather than buying obviously smaller sizes, in order to add the missing parts later. Choosing the right size minimizes the number of seams, which will then affect the duration of the finishing work, in addition, such a structure will be stronger, which means, reliable and durable.
Professionals can easily calculate how many sheets and what dimensions are needed for a particular job, but for a beginner this is not an easy task. In the absence of experience, it is important to draw a map of the surface on which work with the gypsum board will be carried out., and according to the cells, clearly determine the height and width of the sheet, and, accordingly, their number.
For those who do not like to deal with drawings, you can rely on the dimensions of the room, but buy material with a margin of 10 or even 20%.
The same principle works for ceiling work. After careful measurements, it is necessary to purchase sheets of a suitable size, it is better they will be larger than smaller, so that you can cut off the excess rather than add it. The fewer seams on the ceiling, the more beautiful the surface will be and the easier it is to work with it.… In order to achieve this effect, it is important to correctly place the sheets, having data on the width and length of the repair site. If it is difficult to do this in your head, you can also use a drawing in which to try several options for the location, choosing the most suitable one.
When choosing drywall for a specific room, it is important to understand its specifics in order to choose the appropriate type and size for the optimal number of sheets that will be required for repair.
Having correctly calculated all the indicators, you can get a good and high-quality result.
Useful tips for all occasions
In the event that repairs are to be made at home or in any other room, for which drywall is needed, then it is important to choose it correctly, for which it is worth paying attention to important factors:
- Choosing a place of purchase: market or hardware store. Products on the market may be stored under inappropriate conditions, which will adversely affect product performance. The store often has optimal storage conditions and certificates confirming the authenticity of the products. Construction supermarkets allow you to choose a product from a relatively large variety of firms that differ in characteristics and prices.
- Inspection of the place of purchase and warehouse … If it is important to get a high-quality repair, then it is worth asking how exactly the materials that will be delivered for work are stored;
- Loading and unloading works … If possible, you should be near the movers at the time of loading and unloading sheets to see any violations in the process. This will help avoid any damage to the drywall.
- Having received the goods, you need to inspect it well, the sheets must be flat, clean and uniform. The presence of chips, dents and scratches indicates poor quality, problems with storage or transportation.
It is best to return the damaged sheets back, otherwise their service life may be significantly reduced.
When drywall is bought for the first time, and many sheets are needed for work, you need to check the product of a specific company from a specific supplier. Only one sheet is bought and cut into strips. It is required to carefully inspect the contents of each strip, to assess whether the composition is homogeneous or not, whether there are external differences.
If everything is in order, and there are no questions, you can safely order the required amount of GCR from this batch. But in case of doubt, it is better not to risk it and look for another option.
When planning the finishing of a living space, it is worth especially carefully to check the composition of drywall, because small firms that offer an affordable product can add harmful substances to its composition, during operation they will emit poisonous vapors or odors that negatively affect human health. This is especially important for the renovation of a children's room, where everything should be as natural and high quality as possible.
Do not forget about the specifics of the premises.: for a shower, toilet and kitchen, the best option is a moisture-resistant gypsum board, and in ordinary rooms, a standard option is suitable for dry living areas. Thin and lightweight structures are used on the ceiling, and as thick and durable as possible interior partitions.
The correct choice of drywall sheets will be the foundation for a successful and beautiful renovation in any room.
Tips for using and installing drywall are waiting for you in the next video.