A staircase in a private low-rise building carries not only a functional load - it must be beautiful and easy to use. Even for a one-story house, you need to equip some kind of lifting device, and for a two- or three-story house, calculating a spiral staircase or a staircase of another design is vital. Screw (spiral) staircase structures have the main advantage - they take up little space. The space for climbing using such a device will be the same as when using conventional marching or other spatial structures, and if the house is wooden, then a wooden staircase will perfectly complement the design elements of the premises, without ceasing to meet safety requirements.
The classic version of the product with a spiral design involves the steps resting on the wall on one side, and their fastening to the load-bearing column on the other. The characteristic and main distinguishing feature of screw products is a separate stone, concrete or brick column. The building material for this option is concrete or natural stone, sometimes wood or metal, and even more rarely, a combination of all these materials including glass and plastic. A classic staircase is built immediately during the construction of a house, since the steps must be walled up in the wall, and the supporting column must be embedded in the base of the floor. 
The correct choice of model is based on knowledge of the structures, types, functionality and design of stair products. The main classification is based on the following criteria:
Functional purpose:
The most common solutions for staircase structures:
Making spiral staircases with your own hands, drawings of which can be found in the public domain, is possible with skillful use of tools, diagrams and knowledge of the basics of working with wood and metal - any staircase should be not only beautiful and comfortable, but also safe, especially if in the house old people and children live there.
A marching lift is the simplest design that you can make yourself. For such a staircase, they most often develop their own drawing, which indicates in detail all the dimensions of two or more flights, which are separated by steps or turning surfaces.
Important! Any variants of stairs are complex engineering structures, the implementation of which requires accuracy in calculations and reliability of building materials. Staircase calculations can be done online or independently, but it is better to use the services of specialists.
The first step to making a staircase is choosing your design option. A wooden spiral staircase, the drawing of which was developed and compiled by outside specialists, requires verification and clarification of the calculation results. Moreover, each specific solution will have its own individual construction conditions. So, when using a staircase with a side support, you will need to equip a “well”, in the side planes of which the steps will be rigidly built. The “well” is a technically complex mechanism, and you can make it yourself, but it is preferable to go with the option with a load-bearing beam on the main rod. 
As an example, we can provide an independent calculation of a screw model, in which the support beam is a metal pipe with a wall thickness of 5 mm, the Ø of the main pipe is 48 cm. The metal corners will serve as fastening of the consoles by welding, the steps will be made of solid wood. An ideal screw design is a regular circle with a diameter equal to the dimensions of the entrance opening to the room. A simple but accurate formula to calculate the circumference of a staircase:
L = 2πR x n; or L=2πR x (γ / 360);
The practical implementation of the model calculated using this formula showed that comfortable movement along such stairs will be complicated by tight openings, therefore the radius of movement should be 2R / 3. The final and working formula:
From the comparative diagram above it is clear that a staircase with a spiral design differs from a straight model by a different, more specific shape of steps. The console of a spiral product is a petal with a rounded end and with specific characteristics and meanings:
To find out the total number of steps, you need to divide the height of the opening by the rise, the standard and comfortable value of which is taken to be 15-30 cm. The angle is calculated by
Having the calculated width and angle values, you can calculate the maximum tread width:
The average tread width will be:
The screw model is not a necessary solution. It is equipped if there is not enough space in the room for a marching structure. The design of such products can be absolutely anything - from classic to modern or high-tech. For example, a wrought iron staircase is suitable for any interior if individual parts and elements are finished with wood or stone. Spiral models also work as auxiliary structures - attics, basements, etc. 
Disadvantages of screw spiral designs of internal stairs:
But the appearance of such a model most often outweighs all its shortcomings - the design looks light and airy, although it is very durable and reliable. Rotary staircase systems are also considered screw, since they have winder steps in the device. Turning stairs are as follows:
When assembling and installing the rotating model, it is strengthened along the load-bearing wall, with a handrail on the outside. The disadvantage of such structures is considered to be an uncomfortable climb up the steps.
The assembly of spiral staircases is carried out in a certain sequence, violation of which can weaken the structure:
To calculate where to install the supporting metal rod, two construction cords are pulled diagonally on the second floor at the location where the stairs are installed. At the intersection of the cords, a plumb line is attached, and on the first floor the center of the axis is marked, which will be the main axis of the staircase. The tube for the rod should be ≈ 50 mm in diameter if it is metal. The wooden post should be at least twice as thick.
For safe operation of a screw, attic or attic, it is recommended to fill the support with concrete - for this purpose a separate concrete cushion is installed. The support can be secured to concrete using anchor bolts or turboprops through a metal flange with mounting holes.
The steps on the main support are mounted at a smaller size. The height of the riser should be equal to the height of the sleeve minus the thickness of the washer, which is inserted between the bushings and the tread. The washers must be metal to minimize their wear during operation. 
If desired, parts made from other decorative durable materials - glass, stone, plastic, marble, etc. - can be inserted into the elements of wooden spiral staircases. The lifespan of the staircase and the degree of its strength depend on the material from which the main supporting rod is made. Therefore, preference is given to building materials such as asbestos cement, concrete or metal. The steps are attached in different ways: to asbestos cement or concrete - with bolts or anchors, to metal - by welding or threaded connections. Sometimes a brick, wood or stone column is used as the main support.
Unlike the traditional version, the spiral staircase looks much more original. There are different ways to design stairs, for example: steps and railings can be decorated with different decorations. The design can also be made according to the customer's design. Both wooden and metal spiral staircases must be combined with the overall interior of the room and ensure the safety of movement for the elderly and children.
There are different types of stairs, and they all have individual purposes:
Popular types that are often installed in dachas:
With a strong desire, the availability of tools and drawings, it is quite possible to cope with the construction of the stairs on your own.
The main factor in the construction of such a structure is the absence of toxins in the material used and safety.
This type of structure is considered the most popular and easiest to manufacture. To create such a structure, it is recommended to draw up a drawing on your own or place an order with a construction company.
A more complex design is a rotating staircase model. It has several marches, which are separated by platforms. Mainly used for multi-storey buildings.
You must understand that the construction of such a structure requires accurate calculations. If done incorrectly, there is a risk of collapse, which can lead to various consequences. And if there are doubts about the construction of such a system, then it is better to seek help from engineers who will make an accurate calculation.
If a metal spiral staircase is being built, then you should purchase a steel pipe with a wall thickness of 5 mm and a cross-section of approximately 10 cm. To secure the consoles by welding, you will need metal corners. Wooden elements cut to fit the steps will be used to arrange the steps.
The spiral design must match the diameter of the opening, which opens onto the second floor. Designations for calculations:
The correct formula for structural calculations is:
Spiral staircases in Leroy Merlin have a unique shape of steps, which significantly distinguishes this design from the usual spiral ones. The shape of the console is similar to a petal with rounded edges. But according to technology, the calculation of steps occurs according to this principle:
The formula for calculating the angle of the steps:
For wooden spiral stairs, the most acceptable tread width is 20-30 cm.
Drawings are created using two developments and in a vertical and horizontal position (along the outer edge and along the path line). It is preferable to build a spiral wooden staircase on stringers, since this technique improves aesthetics, but still the choice of construction remains with the customer.
According to technology, screw structures are installed for the following reasons:
The advantages of spiral staircases include:
There are a number of main disadvantages of spiral staircases:
Such designs are considered a type of spiral staircase. They can consist entirely of winder steps or partially. There are such modifications of rotary models:
The wooden rotary structure involves fixing the entire system to the load-bearing wall, and the railings are mounted from the outside. Sometimes in mansions you can see stairs that are not attached to the wall at all. From the point of view of designers, the design looks quite unusual and attractive, but ease of movement is complicated since there are no railings.
Installation of this design is as follows:
In order to make a spiral staircase, the following should be taken into account during work:
The prefabricated spiral staircase can be combined with different materials, such as metal, wood, stone and other decorations. But a structure made of wood is considered the most aesthetic and has not lost its popularity over time.
The staircase is an integral part of a country house; it allows you to safely move between floors and rooms, and also serves an aesthetic function. That is why the staircase design should be stylish, comfortable and multifunctional, regardless of the model you choose.
A DIY wooden spiral staircase will be an excellent addition to the interior of a living room or hallway. When independently assembling such a product, it is especially important to take into account all safety requirements, standard calculations and room features.
A distinctive feature of a spiral staircase is its lightness and compactness. Compared to marching, it has a wide variety of shapes and sizes, as well as the ability to combine materials. In this article we will look at the main stages of building a spiral staircase, namely how to take measurements correctly, install steps and install supports. Compliance with these points will allow you to avoid mistakes and save money on calling a professional team.
The spiral staircase is characterized by its small dimensions and intricate shape, and therefore its production has a number of features. First of all, you should determine what the interior element in question is. From above, the base of the staircase resembles a kind of petal with slightly rounded corners.
Thanks to its unique parameters, the design takes up minimal space in the house (it can take up only one square meter).
If you plan to build a screw transition from wood or metal with your own hands, then you need to draw up a detailed drawing in advance. This will allow installation work to be carried out much faster and will protect against catastrophic errors, because incorrect measurements can cause the collapse of the finished product.
This type of installation work also involves studying the technology and features of the process, preparing the necessary materials and devices. Today, staircase structures are made from different types of wood (the most popular are maple, oak and beech) or using sheet metal.
Such designs save space in the house due to their small size. So, with the width of the steps being one meter, the diameter of the stairs does not exceed two and a half meters. In turn, the product has a tilt angle of forty-five degrees, which is the optimal solution for this shape.
Note! Spiral staircase structures have rather narrow steps, so residents of the house must be extremely careful when moving (this is especially true for families with small children and the elderly).
You need to be careful when descending such stairs Most designers agree that spiral staircases should not be installed in high traffic areas. They are much better suited for two-story apartments or small country houses.
When manufacturing such a large interior element as a staircase, it is worth taking into account the technical and operational features of the model you choose.
Like any design, a spiral staircase has pros and cons of use.
The spiral staircase also has certain operating disadvantages, the main one of which is the low level of safety when ascending or descending. Another negative point can be considered the impossibility of transporting large items (furniture, equipment) to the second floor.
It is better to use a spiral staircase as an additional passage to the attic or attic, but the main structure should be a marching model.
To protect yourself and your loved ones, experts recommend deciding on the type of product in the first stages of building a house. So, if you decide on a spiral staircase, it is better to place a bedroom or other rooms that are not frequently used on the second floor.
There are several types of spiral staircase structures; the choice depends on your personal preferences, installation location and room characteristics. To choose the best option, look at the photo below, which shows diagrams of the main four structures, each of which differs in the way the steps are attached.
Main types of spiral staircases However, it is worth noting that in all varieties, the risers (if present) and steps are attached in such a way that the result is something like the threads of a standard screw. When viewing the finished product from above, the shape of the span becomes clear. Depending on the thread direction of a conventional screw, a flight of stairs will either be in the shape of a circle or a polygon.
Round and polygonal (square) staircase shape The polygonal version of the staircase is becoming increasingly popular; this design is installed against the wall and gives the room a finished appearance.
The strength and durability of the staircase structure is primarily affected by the base material. Thus, more and more often, asbestos-cement or metal pipes are used in the manufacture of spiral staircases. A load-bearing element made of such material allows you to increase the service life of the product and prevent the negative consequences of mechanical impact.
Steps are attached to a metal pipe by welding, which in turn can be made of completely different materials (wood, stone or concrete). Hardwoods are excellent for railings; combined options look especially impressive (when noble wood is set off by decorative glass elements).
When choosing a material for the production of a spiral staircase, do not forget about the interior features of the room. For a country house in a classic style, wooden models are suitable, and for a living room in an Art Nouveau style - metal products, but with stone steps.
When drawing up a drawing, you need to decide in advance how you will use the free space. If you are going to do all the measurements and calculations of the spiral staircase yourself, then before drawing up a plan you need to take into account the main design features of this interior element. Below is a typical version of a spiral staircase.
For a private home with small children and elderly people you should also:
On video: mistakes in designing stairs in a wooden house.
This dimensional element of the interior requires drawing up a detailed diagram. You can make the drawing yourself or use the services of specialists (this will allow you to avoid many mistakes that a novice master cannot cope with).
Experts recommend starting the first stage of work with the design of the first floor. This document should indicate where the structure will be installed, as well as the exact dimensions (length, width, slope) of the staircase opening in accordance with the established scale.
It is necessary to correctly calculate and describe how the shape of the steps will change when using rotary blades. All parameters must be strictly observed; in cross-section, all structural elements must be combined with each other. You should also draw up a separate diagram showing the circular angles of the staircase.
When measuring a future product, it is especially important to follow the step-by-step instructions and a pre-created diagram. To avoid common mistakes, pay attention to these rules:
When drawing up a project for a future product, it is necessary to take into account the parameters of the finished elements and their quantity. So, the thickness of the steps should be at least five centimeters with standard staircase dimensions. To determine the required number of steps, you need to know the height of the future staircase structure (H = distance from floor to ceiling + thickness of the interfloor ceiling).
Let's say the height of the future staircase (H) is 3 m. The recommended height of each step (S) is 18-22 cm. Let's take the average value - 20 cm (i.e. S = 0.2 m). To determine the number of steps, you need to divide the height of the stairs by the height of the steps, H:S=3:0.2=15. As a result, it turns out that we need 15 steps.
The dimensions of each tread for a spiral staircase are calculated using a special formula (see photo below).
A circular staircase made of wood is in great demand due to its minimal costs and compact design. Wood products give the room solidity and are characterized by increased safety (compared to metal models). Even a novice craftsman can make a wooden staircase, the main thing is to draw up the drawing correctly or use ready-made examples. We hope that the proposed options will help you in your work.
A spiral (or round) metal staircase has a number of advantages. First of all, this is the fire resistance of the structure, as well as ease of installation and long service life. The distinctive features of such circular products are their modern design and the ability to combine different materials.
Externally, the drawing of a metal spiral staircase is not much different from the previous example, however, there are some nuances here too. So, such a design can be made correctly only if you follow step-by-step instructions and special technology. Assembling the system involves installing the central pillar, attaching the bushing, washers and steps.
Now in stores you can find ready-made screw structures, the assembly of which is not particularly difficult.
Installation of support
The support of a spiral staircase structure can be concrete, steel, wood or brick pillars. Each of the elements is fastened together using bolts and occasionally couplings. The result should be a support post that can support the weight of the finished product and a person. The support pillar, whatever material it is made of, is connected to the bottom and top of the stairs at the same time. The dimensions of this element may vary depending on the variety.
The diameter of the concrete and wooden posts is 15-20 cm, the diameter of the metal support is no more than 10 cm. When talking about making and installing a bowstring with your own hands, you need to take into account the labor-intensive process of giving wooden parts a bent shape.
For this purpose, a special technology is used, which involves soaking the wood, forming the required proportions and drying.
Installation of steps For comfortable movement between floors, it is important to correctly position the axes. When choosing a metal staircase, a frame of the required shape is mounted using metal corners.
The latter are welded to the support column in the form of straight plates. You can also weld three metal profiles together, which should then create a kind of stand for the step. As for a completely wooden staircase, it is easier to make wedge-shaped steps with a hole in the narrow part and string them onto a support rod.
The penultimate stage of constructing a spiral staircase involves installing a fence. In the case of screw models, it serves as additional protection and also performs a decorative function. Most often, the fence is made of metal pipes or forged elements, which looks very impressive and makes the interior of the house more stylish.
If you are planning to build a wooden spiral staircase, then pay attention to balusters and railings made of expensive wood. However, it is very difficult to install rounded railings - for this it is necessary to soak and dry the parts in advance. This is why professionals advise using wood imitation (PVC-based products).
In the case of a wooden spiral staircase, the final stage is painting. If you are using beech as the base material, this process requires special care (to preserve the natural texture). First of all, the parts need to be sanded, vacuumed and covered with stain. Next, you should apply two layers of parquet varnish, this will avoid abrasion of the surface.
Making a spiral staircase is a rather lengthy and responsible process. However, even a novice master can do it. Compliance with technical standards, safety rules and precise instructions for assembling and installing the structure will allow you to achieve excellent results. If you doubt yourself or do not have sufficient experience in the construction industry, then it is better to seek help from specialists.
If a private house has more than one floor, you cannot do without a staircase. But besides the fact that it must connect the floors, the staircase must also fit into the interior. Therefore, when choosing a design, you need to pay attention not only to the dimensions and how much space it takes up in the room, but also to take into account the style. Then a hand-made staircase to the second floor will not only be a functional item, but also an interior decoration. The work is difficult and responsible, but you can do it.
All these structures can be made of metal, wood, concrete, glass, marble and other decorative stones, and often use combinations of these materials. But most often, the staircase to the second floor is made from wood, a little less often - from metal or combinations of metal and wood.
In addition, there are two types of degrees - open and closed. In open staircases there is only a horizontal part - the step itself, in closed ones there is also a vertical part - the riser.
When designing a staircase, it is important to make it comfortable and safe. There are very specific numbers and recommendations that relate to the parameters of the steps and the general angle of elevation:
The number of steps is determined by simply dividing the height of the planned staircase by the selected riser height. For example, the height of the room is 285 cm. It was decided to make the elevation angle 40°. From the table we see that the height of the riser is 19 cm. Divide 285 cm / 19 cm = 15 steps. If the number turns out to be even, we slightly adjust the size accordingly to get an odd number.
If one of the steps turns out to be several centimeters smaller, this height is “taken away” from the first step. All others, including the last one, should be the same.
When choosing the size of the steps, comfort can be checked. If the double height of the riser is added to the selected step width, the result should be from 60 ms to 64 cm. The second test option is that the sum of the lengths of the tread and riser is optimally equal to 45 cm, but deviations of 2 cm in both directions are acceptable.
All these parameters must be taken into account when designing a house. If the house has already been built, you have to proceed from what is there and adjust the dimensions to the existing dimensions.
As already mentioned, a spiral staircase in a private house takes up the least amount of space. But it has a serious drawback: it is uncomfortable to walk on, and it is almost impossible to lift anything bulky to the second floor. So they are not very popular, although they look good and fit well into any interior.
When designing a spiral staircase, it must be taken into account that in some positions there are other steps above your head. Therefore, it will not be possible to make small risers.
The next feature is that the steps are all unequal in width - narrower on one side, wider on the other. The narrow part is attached to the central support (post), the wide part is attached to the walls or balusters. The standard for the width of the tread is measured in the middle part, and the wide part should not be more than 40 cm.
The span width is from 50 cm to 100 cm. The entire structure is doubled - a square with a side of 100 cm to 200 cm is required.
This type of spiral staircase is the easiest to make: a pipe is placed on which wooden elements are placed - steps, intermediate cylinders, etc.
If you look in more detail, in addition to a metal pipe (in this case with a diameter of 40 mm), steps and balusters (available in any design), there are turned wooden cylinders (segments) that set the distance from one step to another.
On the other hand, the distance between the steps is maintained using cuts on the balusters. The steps are attached to these grooves (with glue + fasteners).
Do-it-yourself installation of a staircase to the second floor begins with the installation of a pillar. A hole equal to the diameter of the pillar is made in the floor of the first floor and the ceiling of the second. We insert the pipe into the hole, put on the enlarged washer, and tighten the nut. Further assembly is simple: the corresponding elements are mounted on the rod, and in parallel with the installation of the step, a baluster is placed and secured. The dimensions of the steps for this spiral staircase with the given parameters are in the drawing.
The steps are cut from laminated boards or furniture boards. You can use solid wood, but of furniture quality, that is, without any defects and dried, with a humidity of no more than 8-12%. Although laminated wood is considered more reliable: it will definitely not be damaged and will not crack when dried.
For an example of assembling such a design, see the video. It has a prefabricated pole, but you can also use a solid one, although assembling the steps will be inconvenient - you will have to climb the stairs every time.
The design of a metal spiral staircase is presented in the following video fragment. For those who are familiar with welding, this option will be easier.
With or without railings - the choice is yours. In the photo on the right, a wooden spiral staircase on a bent stringer is a difficult element to execute. Forged twisted staircases are a classic of the genre.
Marching stairs are the most popular. Firstly, they are convenient to use, and secondly, the technology for their construction has long been proven. There are few specific features of the calculation. It is important to decide on the number of marches. One section should have from 3 to 15 steps. The most convenient ones have 11-13 pieces. If according to calculations it turns out that there should be more steps, they are divided into several sections, between which platforms are made. The dimensions of the platforms are multiples of the step length (600-630 mm). Then the ascent and descent will not cause inconvenience.
Stairs with landings take up quite a lot of space. If there is not enough space, turns are added. The most common option is to place the staircase at the corners of two adjacent walls. Also, to save space, you can make winder (turning) steps instead of a platform. Just one thing: the section with winder steps is the most dangerous. If the family has small children or elderly people, it is better to make a playground.
As we have said before, flight stairs are made on stringers (beams with a sawtooth edge) and on terives (just an inclined beam). Attaching steps to string beams requires more time and skill. Usually, a “seat” is cut out for each step - a groove is selected in the board. For additional reliability, bars are also nailed from below or corners are installed. The option with corners is reliable, but quite controversial from an aesthetic point of view. If the entire staircase is made of wood, metal parts are very “cutting” to the eye. Carefully processed bars look much more organic. However, if the boards for the steps are thick enough and the string is wide enough, you can do without additional fasteners. In this case, it is important that the steps do not bend, otherwise they may jump out of the grooves.
Assembling steps on stringers is simpler: you have two or three supports to which parts cut to size are attached. The main task is to correctly mark and cut the stringers.
This is a staircase on stringers - one of the fragments of the assembly
Stringers are made from wide boards 75-80 mm thick and 350-400 mm wide. If there is no solid dry board, you can use glued ones. How to calculate the stringer is described in the form, but you can assemble the staircase to the second floor not only as a free-standing one.
An example of assembling a staircase on stringers against a wall is below. First, we attach the support pillars on which the winder steps will rest. We attach the upper stringers to these pillars.
Then we install the lower ones. We attach the stringer near the wall on top of a decorative board - it is easier to clean and the dirt is less visible than on the wall.
We attach the lower stringers - one to the post, the second to the finishing board
Intermediate stringers are installed last. This makes it easier to connect all the elements.
The installation of steps begins. After they are cut, sanded and painted, everything is simple: put them in place, drill a hole for the screw, then tighten it.
The next step is attaching the balusters. In this case, they are made of stainless steel pipes with wooden inserts. A hole is drilled under each baluster into which a tube is inserted and fixed with a pin or any other available method.
Metal and glass - an interesting combination. An interesting idea, and at the end - a pantry
Faced with the need to build, overhaul or modernize a home with their own hands, owners have to collect a large amount of information about the design and installation of staircase structures. The main purpose of internal stairs is to provide access to rooms in residential, office or industrial premises located on the upper floors. In addition, both internal and external stairs are installed in the presence of attics, terraces, attics, balconies and exploitable roofs. There are several options for staircase designs, each of which has its own advantages and features. Taking into account many factors characteristic of the construction of private houses and multi-storey apartments, designers are increasingly offering the installation of screw or other materials.
As the name suggests, it looks like a spiral, starting on the ground floor and going up. A central pillar made of metal or strong bowstrings serve as support for the steps. In some designs, the support column is completely replaced by bowstrings, and the function of auxiliary fastenings is performed by walls and balusters. The development and calculation of a staircase design requires compliance with the requirements, standards, norms and restrictions set out in regulatory documents: GOST and SNiP.
Advantages and disadvantages of spiral staircase structures
For the sake of objectivity, it is also worth noting the disadvantages that are inherent in spiral structures. Due to the fact that their width and structure do not allow the transportation of large objects (furniture, equipment, building materials), they rather act as an additional staircase structure. Many experts recommend equipping the house with a classic staircase running outside. In addition, the daily circling of the spiral staircase is problematic for people with disabilities. 
A big advantage of spiral staircases, which greatly pleases those who like to make everything for the home with their own hands, is the possibility of making them themselves. The preliminary stage of such work is the creation of a project and drawing. Before starting the calculation, it is worth taking into account the following aspects:
As the central support for the spiral staircase, it is necessary to choose the most durable material, because it will take on almost the entire load. The use of a thick-walled round metal pipe with a diameter of 5 cm or more should be considered optimal.
For the most durable fastening of the support to the floor, anchor bolts are suitable. This choice is justified by their reliability and lack of installation difficulties.
Important! The attachment of the support to the floor should be as reliable as possible. For massive structures, it would not be superfluous to create an additional foundation.
Many manufacturers offer screw designs that are easy to transport and assemble on site. In this case, the home craftsman only has to worry about the reliability of the fastenings of the support post, steps and railings, so that the installation with his own hands is carried out in accordance with the instructions and safety requirements. Installation of a finished screw structure
You can also use ready-made steps made of rectangular wood, which are quite easy to adjust to the dimensions obtained in the calculations. After processing, the edges should be sanded thoroughly. Based on the master's plan, the steps can be covered with stain and varnish or paint. When moving on to making and installing a bowstring with your own hands, you should take into account that it is extremely difficult to give wooden parts a bent shape. For this purpose, a special technology is used, in which the wood is soaked, shaped and dried in a fixed state. An alternative would be to connect the individual segments into a single string.
By observing the necessary standards and following the instructions of qualified specialists, every craftsman familiar with the principles of woodworking can manufacture and install a spiral staircase structure. For a more complete picture, we recommend that you also familiarize yourself with.
