C21 corrugated board is an ideal ratio of price and quality. Professional sheet C21: technical characteristics and use cases

The characteristics of the C21 profiled sheet made it an almost universal material. Nowadays it is used almost everywhere. The trapezium of this sheet is 21 mm, which gives it a very high bearing capacity.

Material manufacturing

One of the biggest advantages of this material is that not the most expensive equipment is used in its production, which is why the price of the final product is lower. In addition, the sheet manufacturing process itself is most often carried out by some metalworking plant, which is located on the territory Russian Federation or CIS countries. However, these factors did not affect the high performance characteristics of the C21 profiled sheet.

The rules for the production and release of this material are regulated by several normative documents, which makes it possible to support high level the quality of this product. Product marking means the following:

• The letter C means that the corrugated board belongs to the wall category.
• 21 is the height of the profile trapezoid, measured in millimeters.
• There are some more characteristics of the profiled sheet C21 - 1000; 0.7. The first digit indicates standard size sheet in width. The second digit indicates the thickness of the metal that was used as raw material to produce the sheet.

Sheet usage

By itself, corrugated board (both brand C21 and any other) is used almost everywhere. This material can be used for purposes such as:

• roofing for various kinds of buildings, which may include industrial, public, and individual;
• with the help of these sheets, temporary or even permanent buildings can be erected at a fairly high speed;
• the characteristics of the C21 profiled sheet allow it to be used for shelter storage facilities, pavilions, garages, it can be used to build fences for any kind of sites and buildings.

Most often, of course, it is private developers who resort to the use of this material. The characteristics of the sheet allow it to serve for quite a long time and reliably, and at the same time have an acceptable appearance.

General characteristics of sheets

One of the greatest advantages that have been obtained due to the characteristics of the sheet concerns the ease of installation. This quality was largely obtained because the weight of the C21 profiled sheet is rather small. For example, when using a standard C21 1000-0.7 sheet, the weight of one square meter of material will be only 7.4 kg. Due to the fact that the material has a rather high rigidity and bearing capacity, the length of one sheet can vary from 1 to 12 meters. This is very useful property, as this will help to achieve a minimum number of sheets, for example, on the roof, which will ensure a small number of joints. There is one small nuance in the characteristics of the C21 profiled sheet, which concerns the width. The working indicator of this parameter and its nominal value are different things. The reason for this was that the installation of sheets overlapped.

Sheet weight and size

The characteristic of the dimensions of the profiled sheet C21 is as follows:

• The full width of the sheet is 1 meter and 5 centimeters.
• The actual working width, taking into account the overlapping of the material, is exactly 1 meter.

It is also important to note that initially, during production on the stamping equipment at the plant, all sheets are produced in a length of 12 meters. Only after receiving finished material start cutting it. The minimum length that can be ordered for cutting is 50 centimeters. The same length serves as the cutting step of the sheet. That is, you can buy a sheet only 50 cm long, then 1 m, then 1 m and 50 cm, etc. up to 12 meters in length.

If we talk about weight, then it is logical that this parameter depends on the thickness of the workpiece.

For example, the minimum thickness of the product is 0.4 mm. The weight running meter such a sheet will be only 4 kg and 450 g. The maximum thickness is 0.8 mm. The weight of such a metal product is 8 kg and 400 g.

Production process

All specifications profiled sheet C21 are laid even in the process of production of this material. It is important to note here that this process is fully automatic. The workshop for the production of this raw material works without the participation of people, only the settings specified by the person are used.

The first equipment that works with a sheet is called roll forming. It is clear that it is this that creates the future stiffness profile of the material. After passing through this process, the workpiece, already with the profile, enters the rolling table. On this table, the necessary parts of the sheet are completely aligned, and at this moment the process of checking the length of the product is carried out. After that comes the finish line, which ends with guillotine shears that cut the metal into sheets pre-installed along the length.

Coating

A very important indicator of the technical characteristics of the C21 profiled sheet and any other will be its coating. There are 3 types of it - galvanization, polymer one-sided and polymer two-sided.

Galvanization is the cheapest and standard coating for profiled sheet, and therefore the worst in terms of its characteristics. The service life of such a workpiece is several years. Such a short period is due to the fact that there is no protective covering that can resist corrosion. Because of this, the metal quickly rusts and becomes unusable. The polymer coating increases the cost of the sheet, but it also significantly raises its performance. In addition to improving the technical side of the product, the polymer coating also affects the aesthetic component. Galvanization cannot have any color, and if you want to paint it by hand, you will have to prime it and only then paint it.

The polymer coating initially has some color. When buying or ordering, you can immediately choose the shade that the building, fence, roof, etc. will have.

Mounting principle

Due to the high technical characteristics, large sizes, light weight this material is quite easy to install. Installation is carried out by means of installations support pillars and simple sheathing of the supporting structure with these sheets. Since the weight is small, you can carry out the installation yourself. This is when it comes to fencing. If you use this material as a roof, then its large length will allow you to avoid an extra number of joints, which, of course, will improve the quality of the roof itself.

Cost and reviews

The cost of a professional sheet is in the region from 170 to 350 rubles. This price is for one linear meter of material. It is worth noting that the price increase for a polymer-coated sheet can vary from 10 to 30%. When buying this material, it is very important to choose a product at a good price. In this case, we mean not the most minimal, but the acceptable cost. This is important as a product that is too cheap is likely to be either too thin or have poor coverage, etc.

Dimensions GOST 24045-94
Width of galvanized sheet 1051 mm
Useful sheet width 1000 mm
Wave height (corrugation) 21 mm
Metal sheet thickness 0.4-0.7 mm

Scope of application

Application: walls, ceilings, partitions, fences, pitched roofs. Profiled galvanized sheet C21 is one of the most economical roofing sheet profiles. This type sheet is considered a universal coating, as it is equally suitable for roofing and is considered ideal facing material for walls, partitions and fences. The best solution for price and quality (recommended).

Technical requirements for C21 corrugated board

Profiled sheets without polymer coatings are made from galvanized sheet (galvanized roll) with zinc coating according to GOST 14918-80. Decking with polymer coatings should be made of rolled products with a protective and decorative paintwork on GOST 30246-94.

Proper requirements for geometric accuracy on outer surface galvanized profiled sheets C21, on the side of polymer coatings, slight abrasions and minor damages are allowed that do not violate the integrity of the coating. Permissible deviations from this norm of the dimensions of the obtained profiled sheets should not exceed:

in height, mm ± 1.0;
in width, mm ± 8.0;
along the length, mm ± 10.0.

Always in stock basic colors of corrugated board C21

Profiled sheet C21, the characteristics of which you should know before purchasing, is a sheet with a thickness ranging from 0.4 to 0.7 mm. Before buying, you can also choose the length of the sheet, which varies from 1 to 12 m. It is worth noting that if the material is manufactured according to specifications, then it is possible to choose the dimensions and coordinate them with the supplier of the goods. This allows you to solve the issue of cutting, which can damage the coating of the web.

general description

Profiled sheet C21, the characteristics of which will be presented in the article, as a rule, is made of galvanized sheet. The corrugated board has a total width within 1151 millimeters. Quite often, builders are interested in such a parameter as useful width, it is 1000 millimeters. The height of the corrugation is twenty-one millimeters. The canvas can have or be produced in the form. The surface is painted in different colors which greatly expands the choice.

Main positive features

Professional sheet C21, the characteristics of which will allow you to make a choice, is a material that has many advantages. This allows it to be used in many areas of construction and repair. Mounting the coating is quite simple due to its low weight, which speeds up the process of work. Most often, laying is recommended to be overlapped, and traditional self-tapping screws are used for fastening. Profiled sheet C21, whose characteristics are quite impressive, can be used repeatedly, because mechanical fasteners are used when laying. Especially consumers note the high resistance to external influences, this includes possible damage during installation and operation. The manufacturer took care of the presence of a polymer coating that protects the surface from corrosion. Among the additional advantages, one can single out an insignificant cost, as well as an impressive thickness of the metal. Profiled sheet C21 1000 0.7, the characteristics of which are described by the numbers just mentioned, does not affect the structure of the roof and wall, as well as the foundation due to its low weight.

Scope of use

Specifications, the description of which will help you decide - purchase given material or use alternative solution, is manufactured in accordance with GOST 24045-94. The material is used to form partitions, pitched roofs, fences, as well as for the arrangement of ceilings and walls. This canvas can be called one of the most economical sheet profiles. This type of sheet is a universal coating for the reason that it is equally suitable for wall cladding, roofing and for other above-mentioned manipulations.

Price

If you decide to purchase a professional sheet C21, the characteristics, the price of this product should interest you. The final cost will depend on the steel in the base, as well as the thickness of the material. For example, for 1 square meter profiled sheet with a thickness of 0.5 millimeters will have to pay 202 rubles. This value is correct if Zn 0.5 steel was used in the production process. If there is a need for a more impressive thickness, which is 0.55 millimeters, then you will have to pay 231 rubles per square meter. In this case, the basis of the material will be Zn 0.55 steel. The most impressive profiled flooring in thickness of 0.7 millimeters will cost 288 rubles per square meter. In this case, you will receive a material in the manufacture of which Zn 0.7 steel was used.

Additional Specifications

The C21 professional flooring is made of zinc-coated. In this case, there is no polymer coating. If it takes place, then the material is made using rolled products that have a paint and varnish protective and decorative coating. The requirements for the geometric dimensions and quality of the outer coating suggest the possibility of minor damage that does not contribute to the violation of the integrity of the coating. Before purchasing, it is important to familiarize yourself with the tolerances for the main parameters. State standards allow deviations in height in both directions by 1 millimeter. In width, this indicator should not differ from what is prescribed state standards, and be more or less than the established one by 8 millimeters. By lenght tolerance is 10 millimeters.

What is important to know before making a purchase?

The height of the trapezoid, which is 21 mm, guarantees a high load-bearing capacity. Therefore, galvanized C21 is successfully used in structures that are subjected to wind loads. When conducting roofing works you can use this material at any slope. The low cost is also due to the fact that expensive equipment is not used in the production process. If you have a sheet in front of you that is marked C21-1000, then this indicates that the material is wall, the height of the profile trapezoid is 21 millimeters, and the useful, that is, working, profile width is 1000 millimeters.

Conclusion

It is also worth considering the fact that the final cost will depend on the type of coverage, which is why the price may differ from the indicated one by 10 or by 300%.

Profiled sheeting is a trapezoidal or wavy material in the section, produced using cold-rolled technology. In other words, it is corrugated thin steel sheet, which, due to its structural features, has high rigidity and mechanical strength.

It's true versatile material, which is used both for roofing and for installing profiled sheet fences, it is worth noting the similarity of corrugated board and metal tiles. But, unlike tiles, even a flat roof can be covered with a profile sheet.

The use of corrugated board C21

First of all, the scope of the profiled sheet will be of interest to those who cover the roof, plans to quickly build an inexpensive and beautiful fence.

Due to the galvanized or polymer coating, the sheets are not subject to corrosion, which means that they can be successfully used both as partitions and as cladding for building facades. But despite the high strength and resistance to external influences, you still need to work with corrugated board carefully, and it is better to entrust voluminous or complex work to professional builders, because the price of C21 profiled sheet per m2 is not so small as to be neglected.

The main types of profiled sheet:

1. Roofing;
2. Protective;

Roofing corrugated, as a rule, is slightly thinner than protective and is used to quickly cover roofs and canopies. The thickness of steel is usually 0.4..0.7 mm.

Its manufacturing technology and dimensions comply with GOST 24045-94, and meet the highest requirements for roofing and protective materials. This coverage is considered to be universal. It is perfect for wall cladding and fence construction. It is easier than ever to buy a C21 profiled sheet in Moscow and Moscow Region at low prices, and this will become extremely clear after studying our site!

Technical characteristics of corrugated board

Steel profiled sheets have the following overall dimensions:

• Length - up to 12m;
• Width - 1051mm;
• Thickness from 0.4 to 0.7mm;
• The wave height is 21mm.

All sheets are galvanized, this parameter is regulated by the relevant standard - GOST 14918-80. There are also sheets special coating based on polymers technological process which are described in GOST 30246-94. Exist allowable norms dimensional deviations during production - in height this figure is 1 mm in both directions, in width 8 mm and in length 10 mm.

Steel profiled sheet C21 with a wave height of 21 mm is a high-tech material that is produced in strict accordance with current norms and standards. The corrugated board meets the requirements, has a high strength on transverse bend and corrosion resistance.

C21 corrugated board is the most rigid wall corrugated board, which will become the basis for a reliable wind-resistant fence, and can also be used to cover the roof of inclined canopies, peaks, stops and other small structures. This is a universal profile that is in the greatest demand in construction.

Technical characteristics of corrugated board C21

C 21 corrugated board in the standard version is produced in accordance with the requirements specified in GOST 24045-94, galvanized is made in accordance with GOST 52246-2004 (from rolled steel, which is processed for greater stability), and in the manufacture of painted C 21 profiled sheet, they are guided by the norms of standard 52146-2003 , using already galvanized steel with a polymer coating of one color or another.

For example: the marking of corrugated board C21-1000-0.7 has the following interpretation: wall corrugated board with a trapezoid height of 21 mm, a useful profile width of 1000 mm and a raw material thickness of 0.7 mm. In this case, we are talking about steel coils with a galvanized coating.

As for the technical characteristics of C21 corrugated board, it owes its high bearing capacity to the height of the trapezoid, which here reaches a rather large level - 21 mm. That's what makes him so good option and for fences that are subjected to strong wind loads, and for roofing at any slope.

Also great importance have the following indicators:

• light weight - square meter roofing usually weighs around 7 kg, which makes it easy to install;
• rigidity and the ability to cut in large ranges: from 0.1 to 12.0 meters, thus minimizing the number of joints;
• thickness can be from 0.4 to 0.7 mm, providing wide selection possibilities for different requirements.

Depending on the thickness of the sheet, the weight also changes, and it is calculated using the data in the table below:

Professional sheet brand	Thickness, mm	Weight per linear meter, kg	Weight sq. meters, kg

Loads are calculated using the following scheme, which takes into account the thickness of the sheet, the number of spans and their length. For each roof, these parameters are different, so everything varies depending on the project.

Profiled sheet brand	Span, m
		1 span	2 spans	3 spans	4 spans

The step of the crate at an angle of inclination of up to 15 degrees is 300 mm, and with an inclination of more than 15 it should reach 650 mm.

This is how the C21 corrugated board is manufactured at our enterprise:

The use of corrugated board C21

The technical characteristics of the profiled sheet C 21 make it the best option for many solutions in the construction industry. This is a “border” brand, since it immediately corresponds to the parameters of both wall and roofing corrugated board, and can also be used for various other purposes. Of course, just for decorative finishes there are too many facades of this height, and it is better to finish the finish with corrugated board of lower grades, but it is worth buying C 21 corrugated board for the following work:

• roofing with a different slope;
• creation of fences;
• creation of coatings for small structures, etc.

If you are going to lay a reliable roof, then galvanized corrugated board C 21 will be the best option. When you need a durable fence with high wind resistance, this brand is one of the best offers in the market for profiled sheets. In addition, when purchasing material with a polymer coating, it is easy to take care of the aesthetic side of the issue. Such a fence will be hardy, and beautiful, and quite affordable.

Roof decking C 21 is used both in the construction of large objects, and in the creation of inclined canopies, canopies and other small structures. Among them are stops, because despite their small scale they are expected to last a long time. The professional flooring galvanized C21 just can provide it.

Such material is used for a wide range of tasks, which include the following:

1) the creation of roofing both in individual housing construction and in the construction of industrial-scale buildings (the angle of inclination of the roof does not play a role here);

2) construction of spike-type structures for safe fences;

3) construction of wall structures (both with and without insulation);

4) arrangement of fences industrial enterprises, as well as private houses, cottages, etc.; creation of small architectural forms, starting with garages and warehouses and ending with trade pavilions and other prefabricated structures;

5) obtaining frame structures required for block technology;

6) wall cladding during the reconstruction of various structures;

7) insulation, including the production of sandwich panels, with which you can forget about the problem of warming for a long time.

In private construction, polymeric corrugated board is the most popular. Firstly, it lasts longer due to additional protection, and secondly, it is more beautiful, which immediately catches the eye.

Without a profiled sheet of such a brand, they no longer do in any area. For example, if you need to get a strong and high fence, then it is C 21 that will make it possible to carry out the plan. With its help, even fences with a height of more than 2.5 meters are obtained. Particularly relevant is reliable brand in the event that we are not talking about a temporary fence, but about a permanent structure that will serve for many years, withstanding strong winds.

For insulation, galvanized profiled sheet C 21 is used in different ways. Modern technology is the use of sandwich panels, which ensure the preservation of heat in the house at an optimal level.

how roofing material, such a professional sheet also received wide use. As such, it is very popular in the construction of pavilions, verandas, gazebos and awnings, as well as other small architectural forms. But do not forget that in this case it is necessary to do a slightly more frequent crate. Fortunately, the rigidity of the material makes it an attractive, versatile and reliable solution.