Bowstring is an integral part of the structure

Today, most often in residential, industrial and office buildings practice the installation of stairs on the strings. These are high-strength structures that also have an aesthetic appearance. There are they are metal or wooden. With the help of them, you can transform any interior of the room. One of the main elements of this design is the string for the ladder. Read more about this in more detail.

Design features

Often, the string for the ladder is made with dimensions of 50 mm in thickness, 300 mm in width and in length from 2 to 5.5 m. These structures are fixed in a special way - each step is inserted into the groove of the bearing beam. It is called the string. On the reverse side of the stage is attached to the wall. There is a closed and open type of such structures. In the first case, the presence of risers is obligatory, which are absent in the second form. Most often in this design, the steps are made in-between.

To do this, the string for the ladder is taken, and holes are made in it, the size of which is 15-20 mm in depth. These cutouts include risers and treads. And that they fit snugly, the depth of the grooves should be the same. In this design, the lowest step, which is larger in size than the others, gives beauty and convenience. On it put an elegant carved railing. Also the expressiveness of the stairs is added by a skillfully executed fence. If there are any shortcomings on the steps, they can easily be hidden by a path. Forged structures made of metal are very beautiful.

If the size of the room allows, then you can install a two-march ladder. However, most often these structures are installed with a straight span, since they are the most simple. For small rooms, a staircase with a screw on the strings is perfect.

Calculation of the staple string

This product, if desired, can be built of wood or metal. It is very important to correctly calculate the parameters of the bowstring. For example, at a thickness of 50 mm, the size of its overall width will be 300 mm, and the depth of the cut for the step should be made up to 30 mm. To calculate the length of the bowstring, consider the length of the march. The values of the width of the slots and the distances between them are the main characteristics of the ladder, thanks to which it is possible to determine the height of the step, the width of the tread and the angle of inclination. Depending on what kind of staircase design is required , and also taking into account the technical capabilities of the room (interstore distance, width of the march, etc.), various bow strings are made. If a staircase is screwed, then the specified product is calculated and made for it directly at the facility or in the factory.

Product Material

Currently, a wide range of these products is available in the construction markets. The variety of materials required and the development of new technologies make it possible to produce various types of components to this design. Not an exception is also such a detail as the string for the ladder. Everyone can choose the product to their liking. Buy modern stairs on the strings is possible in many specialized stores. Although many craftsmen purchase component materials and produce them themselves. At present, for the production of such stairs, larch and pine are mainly used. These materials are widely distributed in this field.

• Larch is easy to process, rather strong and looks beautiful in the finished product. It is perfect for rooms where there is high humidity.
• Pine is distinguished by the hardness and strength of the material. It withstands considerable loads and is also resistant to moist air, as it has a resinous appearance. It is the string for the staircase made of pine is in great demand.

Tip

Analyzing the above, it can be said with certainty that each product can be installed by itself. There would be a desire. However, it is better to turn to professionals in this field who will perfectly prepare the necessary calculation of the string string and the product as a whole, and then effectively mount the specified structure.