When designing and erecting a staircase in a private house on the second floor, you have to calculate the entire structure with your own hands. In this case, such important factors as the width of the steps, diameter, number. All this is very important to consider in order to prepare the correct drawings and make the entire structure ergonomic and completely safe. This rather original design is very popular, as its construction does not require a large area, but to make the product durable and reliable, you need to think carefully and take into account all the nuances. In addition, a great advantage of the spiral staircase is that it fits into absolutely any interior and becomes its real decoration. To make it convenient to walk on the steps of the fan type, you need to properly designate their dimensions. The rotation of the spiral is entirely possible to do entirely by anyone, it all depends on the design concept and the availability of free space.

 How to perform a spiral staircase calculation on the second floor
 Functional spiral staircase: drawings and number of steps
 Calculating the spiral staircase: design features
 How to prepare a spiral staircase drawing
 How to calculate a spiral staircaseOnline
 Designing a spiral staircase
 Defining the dimensions of a spiral staircase( video)
 More: drawings of spiral staircases( photo examples)
How to perform spiral staircase calculations on the second floor
Designing spiral staircases involves determining all the required product parameters, as well as drawing up a schematic design model with designations. Scheme of a spiral staircase, regardless of its configuration, must be performed in a vertical and horizontal projection. This will allow to draw all the main details of the structure completely, as well as to determine the advantages and disadvantages of each method for arranging steps.
The ladder can have a wide variety of configurations, namely:
 With support on the central axis;
 With partial entry of the steps into the central support;
 With emphasis on the side strings;
 Console location.
Drawings of each type of ladder will differ among themselves, and this must be taken into account when making calculations and drawing up a design plan. At the same time, the sizes of the used parts for spiral staircases vary considerably, since the fixing methods to some extent take away a certain space intended for movement.
Functional spiral staircase: drawings and number of stages
Before the design of the spiral staircase, it is worthwhile to calculate everything correctly, and also to determine the number of steps. That is why, on the basis of the data obtained, the design will be designed and built.
For the construction of a ladder you need to define:
 Number of steps;
 Height of the riser;
 Dimensions and arrangement of steps.
Initially, it is necessary to determine the optimum number of steps. The ideal option will be 1113 steps. Must be an odd number for greater comfort of movement. The reading should go from the top down. The upper step should act as a platform, and its dimensions do not at all differ from the other existing elements.
To determine the optimum height of the riser, you need to divide the distance from the ceiling and the floor to the number of steps. The ideal option is the step height within 1520 centimeters.
For the spiral staircase the most suitable are the tread stairs, which is why, in order to determine the optimal parameters, you must prepare the drawing beforehand.
Calculation of spiral staircase: design features of
The spiral staircase consists of steps and is mainly made of wood or metal. There are standard models of spiral staircases that can be made in the house or perform their original design, but for this you need to correctly and accurately calculate and take into account the features of the finished product. Before proceeding with the construction of the structure, it is necessary to choose the optimal type of product.
In particular, the spiral staircases can be:
 Rectangular;
 Polygonal;
 Round.
Rectangular and polygonal constructions can be used if the staircase is to be mounted next to the wall. If it is located in the middle of the room, then it is best to give preference to a round structure. Spiral staircases can be performed with risers and without them. A ladder without risers is much more convenient to use, since the width of the stair step is much longer than the foot, so it can be slipping the foot if the step is taken, since it occupies a certain space.
Important!The absence of risers makes it possible to become completely all foot on the tread, so the movement along such a ladder will be more convenient and safe.
How to prepare a draft of a spiral staircase
To prepare a drawing of a spiral staircase, it is important to correctly calculate everything and take into account the dimensions of each element of the structure.
Before you draw a layout, you need to think:
 Features of stages;
 The width of the tread;
 Dimensions of the opening.
Having looked at the available finished samples, you can choose the best option for yourself, which is then slightly modified for the available parameters and interior features of the house. One of the main characteristics of the ladder is the width of the tread. To determine this parameter, you need not only to prepare a drawing, but also to use special formulas that will help determine the required width of the step.
The following must be displayed on the prepared plan:
 Outer diameter;
 Degree of rotation;
 The width of the tread.
In addition, when calculating the need to take into account the location for fixing the steps, as well as the area for the handrail. In addition, you need to take into account the required area for the design of the opening. When moving up or down a person of any height should easily and freely pass without touching the ceiling beams. The optimal size of the space should be approximately 2 meters. The minimum diameter is in the range of 1.21.5 meters.
How to calculate the spiral staircase online
You can independently carry out all the required calculations and measurements during the design of the spiral staircase. However, there are special programs that help you quickly and easily perform the required measurements, draw up a drawing and visualize the resulting drawings. Thus, it will be possible to get a complete idea of how the finished staircase will look in the interior.
In particular, these are programs such as:
 Online calculator;
 3D Designer;
 Autocad.
The most popular and popular is the online calculator, as well as the AutoCAD program. It is enough to make only the required data and the program itself will calculate and offer the most optimal solution. You can get a visualization of the finished structure from all sides, as well as its sections, which will determine how strong and safe it will be.
If you are calculating in AutoCAD, you should remember that the finished file will have the extension dwg, which is not compatible with all programs.
Design of the spiral staircase
The spiral staircase is installed mainly if you need to save space.
It perfectly suits as a ladder for:
 Second floor;
 Attic;
 Attic.
In order to accurately and correctly carry out the design of the structure, all requirements and norms of GOST are important, as this will make the staircase strong, stable and safe.
The design of the spiral staircase must necessarily be thought out very carefully to the smallest detail, so that it will turn out to be strong and reliable. Lifting and descent should not make you feel uncomfortable. Materials for the manufacture of parts must be robust and fully comply with the loads exerted on the structure.
Defining the dimensions of the spiral staircase( video)
The spiral staircase has an excellent design and original appearance, so it can easily become an ornament of any interior of the house, regardless of its stylistic features.