In my own home I want to do everything so that the eye rejoices. A sense of coziness and comfort should be present everywhere. Therefore, the creation of the interior should be approached with all thoroughness. Or maybe you have a mansion of several floors? Or is there a beautiful staircase at the entrance to the house that will need to be repaired soon? Then, in such a situation, the main attention should be paid to skewers. It is about them that will be discussed in this review.
What does the term hide?
Those who have a need to repair their own homes may ask one simple question: kosour - what is it? Under this term is the most popular type of support, which is used in the construction of stairs. It has the appearance of a beam and is located on each flight of stairs, fastening stairs to itself. In general, this entire structure serves as a support for the stairs. It is necessary to consider this element in more detail, answering the question: "Kosour - what is it?"
What can be used besides kosour?
Due to such a detail, it is possible to give beauty and originality to the whole staircase as a whole. Among other things, there is another type of similar structures. He bears the name of the bowstring. It is very similar to kosour, however, the installation of the tread occurs from the inside. The connection that secures the entire structure as a whole is due to puffs.
In addition, wooden stringers from stringers differ in both size and appearance. These parameters are completely dependent on the shape of the steps, as well as on the load on the stairs, which is permissible. All these factors play a rather important role. And it should be noted that the simultaneous load on the interfloor and entrance stairs should not be more than 250 kilograms.
An important stage related to the calculation part
You should thoroughly approach a procedure such as calculating the kosour. On average, it should not be less than 50 mm wide. This is the case if the width of one march does not exceed one meter. If this parameter is 1.25 meters, then the width of the kosour itself should reach 60 mm. With a march width equal to one and a half meters, the kosour should be 70 mm. In this paragraph, it is also required to note that when using a bowstring, the width of the flights of stairs is much larger than in the case of a kosour.
How is the production of wooden elements?
It is impossible not to note the methods of production, answering the question: "Kosour - what is it?" There are two production options.
- Taking into account the length of the march, it is necessary to form beams (blanks). Parameters such as thickness and width of kosour should not be too large. In addition, a triangular comb shape is created (this is the place where the steps are fixed). Its dimensions should be selected depending on the step of lifting. It is also necessary to consider the width of the tread along with the thickness of the beam. The fastening of steps and kosour in this situation occurs due to dowels. They are fixed in specially created grooves through the use of glue. As a result of all these actions, a beautiful staircase with elegant braids will be obtained. This technology allows you to save on the purchase of expensive material.
- In this case, the width of the workpiece should exceed the overall width of the kosour itself. Its length should correspond to the length of the entire march as a whole, and the thickness should be equal to the thickness of the future kosour. Therefore, it is important in this situation to figure out in advance what size the final product should be. To accurately comply with all sizes, it is worth using a procedure such as milling. This technology differs from the first one at a higher production speed.
What types of kosour can be distinguished?
It should be noted that, unlike a bowstring, wooden braids are lighter. In addition, they take up less space. In this regard, in many mansions, it is kosour, especially if the stairwell is small.
There are several varieties of wooden kosour. Direct elements apply when exactly the same marches are used. A comb is necessary if it is planned to place overhead steps on it. Rounded skewers are required if there is a desire to give roundness to the entire staircase.
When is a fence required?
Stairs that use a bowstring can be equipped with a fence in the following cases:
- When the baluster is mounted directly on the bowstring.
- When large sizes are characteristic for the baluster, and not for the bowstring. In this case, an underwrap board is attached to the staircase, which helps to expand the bowstring by about 25 mm. Subsequently, the baluster is also mounted on this board.
- On the sides of the bowstring, balusters are attached, the length of which in this case increases. However, this technique contributes to the release of the width of the march. For the stairwell, additional free space is freed.
Above were listed the advantages that characterize the fastening of the kosour in many homes. It is believed that these elements give greater reliability to the entire structure as a whole. A ladder with a bowstring can be made in a shorter time.
Which parameter is decisive?
The main characteristic that kosour possesses is strength. And it should be noted that this parameter is specific. It must be understood that this element should calmly support the weight of people and those loads that a person will lift up the stairs. However, there should be no unnecessary vibrations. Know that the kosour that trembles or sways is not good. Most likely, a mistake was made somewhere.
Recently, a staircase on a metal stringer has become popular. It has a very high strength and reliability. All necessary items can be purchased at the metal warehouse. Their manufacture occurs by welding from a channel or a rectangular pipe of a sufficiently large size.
If there is no experience, then it is better to trust professionals
To make a kosour metal, you must have experience in this field. In the event that you have not previously worked with him, there is no need to take risks. The probability of marriage in such a situation is quite high. Indeed, today there is an opportunity to purchase absolutely any kosour, of any type and from any material, in the construction market.
Can I use one beam in a flight of stairs?
In the event that you plan to use one kosour, which will be placed in the center of the march, it is better to use metal instead of wood. Kosour steel will make the stairs more stable than in the case of using wood. In addition, steps at the ends will not bend. What is bad about wood is that it will not be possible to install any additional fastening systems on it. In the case of using metal, this will be very simple. An element of steel can become the only one in the entire structure, and it is also quite easy to restrain the entire load. For additional stability, the steps must be strengthened by special plates. Want to see how a flight of stairs will look like in such a situation? The photo will clearly demonstrate this to you.
Elements from metal are produced through the use of welded parts. You should also use the I-beam, channel or rectangular pipe. In addition, metal braids can take many different forms. It is not necessary to use direct elements. Quite often, you can see the stairs, which spin around one support. In this case, the steps are performed according to a type such as a “goose step”.
Still, it’s better to use a few metal elements
In large-scale flights of stairs, you should still use two braids. They positively affect the appearance, as they are more easily perceived from the visual side. In such situations, the staircase looks lighter and more airy. To achieve this effect, manufacturers use metal of a certain texture and color when creating kosour. In addition, it looks more elegant in design than wood.
The desire of the owner is decisive in choosing a staircase element
The choice of such an element as kosour will largely depend on the tastes and preferences of the owner of the house. A beautiful design can be made of both wood and metal. In addition, when choosing such an essential element, it is necessary to be guided by those goals for which the staircase was created. No less important is its shape. So, choosing skewers and material for their manufacture, it is necessary to consult with specialists. They will advise you on the use of such a complex and important element in the design.
Conclusion
In this review, an attempt was made to understand the question: kosour - what is it? We hope that the article helped you understand what this element is and what role it plays in the flight of stairs.