So, how do professionals advise to perform the calculation in XXI century?
Stair design can be done different ways. Each is based on optimal dimensions flight of stairs necessary for comfortable and safe movement.
Naturally, the most comfortable there will be a gentle and not narrow staircase, but, as a rule, practical circumstances dictate restrictions on the choice key parameters which include: view stairs, lifting height, plan area, tilt angle, number of steps, width and height of each.
These indicators interconnected and cannot be determined individually. For example, for a simple single-flight staircase, the height of the rise and the angle of inclination rigidly set the area in the plan, and vice versa, knowledge of the area in the plan and the height will leave no doubt about the magnitude of the angle of inclination of the stairs.
In this article we we will not consider exotic options, like stairs with elements of three-dimensional curvature, but let's focus on the usual and feasible home master structures on stringers and kerchiefs.
Step size
This is perhaps one of the main characteristics of the stairs. It depends on them how comfortable and safe households will be able to go up to the second floor and go down.
Master Novitsky Oleg Vadimovich in the book “Modern stairs. Design, manufacture, installation.» (best wishes to the author and this marvelous work) mentions recommended and repeatedly tested values for lifting ( h) and tread ( a) steps:
h×a = 150×300, 160×300, 170×290 mm.
These sizes are good, but, unfortunately, cannot be used if the house is already built and overall height stairs ( H) is not a multiple of a single step ( h). In this case, we can turn to the calculation formulas.
Widely known convenience formula:
a - h = 12 cm.
According to this ratio, the stairs will be the most convenient.
The ladder is considered safe if the sum of the dimensions ( with) the width of the tread and the height of the riser is equal to 45 cm:
30+15; 27+18; 25+20 .
Accordingly, this equation is called safety formulas :
c = a + h = 45 cm.
The difficulty is that the formulas are applicable in small range sizes and it is not always possible to realize the necessary proportion in practice. In this case, you should “get” into the indicated proportions with a minimum deviation or use the universal Blondel's formula, which takes into account the average step of a person. More on that below.
| Floor height, m | Number of steps n | Step height h, mm | Step width b, mm | Grade h:b |
| 2.25 for basements | 12 | 118 | 260 | 1:1,38 |
| 13 | 173 | 260 | 1:1,50 | |
| 2,50 | 14 | 179 | 260 | 1:1,45 |
| 14 | 179 | 290 | 1:1,62 | |
| 2,75 | 15 | 183 | 260 | 1:1,42 |
| 16 | 172 | 260 | 1:1,51 | |
| 16 | 172 | 290 | 1:1,69 | |
| 3,00 | 17 | 176 | 290 | 1:1,65 |
| 18 | 167 | 290 | 1:1,74 |
note: in single-flight stairs, as well as in one flight of two- and three-flight stairs within the first floor, no more than 18 lifts (steps). Limit height steps - 220 mm ( SNiP 21-01-97).
For designing a simple wooden staircase on stringers measure the height between floors(vertical distance from the bottom floor to the top floor).
By the way height between floors- this is the "sickest" size. In houses made of stone, very often there are deviations from the project on 4-5 cm, and wooden ones are subject to shrinkage and shrinkage (up to 15 see per floor). Ideally, you should wait for the complete shrinkage of the log house in a few years.
Also dimensions for calculating the stairs it is better to remove when finishing floors are laid or should be clearly defined horizontal levels heights.
So let height in our case:
Choose riser height:
Dividing the height between floors by the height of the risers, we get required amount steps:
270: 18 = 15 pieces.
For determining optimal width steps use convenience formula:
a - h \u003d 12, h \u003d 18 cm.
Comfortable tread width:
a = 12 + h = 30 cm.
So it is necessary 15 steps wide 30 cm and a length depending on the width of the opening in the interfloor ceiling. Checking the stairs safety formula:
a + h = 46 + 3 cm
In this case:
18 + 30 = 48 cm.
Stairs safe and convenient to operate.
This example of calculations is given by Stolyarov A.N. in the book " We build stairs».
French architect and engineer still in the distant 1672 suggested the following relation:
Where S is the average step of a person who is within 600-640 mm.
Can be converted to inequality:
lower practical result would be minimum lift steps:
h = 120 mm, a = 400 mm, slope 17 degrees.
With a smaller angle, it is no longer a staircase, but a ramp (ramp) - a gentle inclined platform.
Upper step rise:
h = 220 mm, a = 200 mm, slope 48 degrees.
On the upper limit formula turns out not the most comfortable ladder, usable only when moving facing the steps.
Going down the ladder is more dangerous than going up, hence ease of use evaluate on the move down. An example of the master's thoughts according to Blondel's formula:
We measure the height between floors:
H = 3050 mm.
Determine the rise of the steps h by dividing H for the possible number of lifts ( n). Value options:
With 17 lifts: h = H / n = 3050 / 17 = 179.4 mm.
At 18: h \u003d H / n \u003d 3050/18 \u003d 169.4 mm.
At 19: h = H / n = 3050/19 = 160.5 mm.
A = 5000 mm.
The length of the travel line should not be less than the height between floors ( H), otherwise the stairs will be impractically steep. In our example:
A (5000) > H (3050).
At n = 18 tread a = 5000 / (n - 1) = 294 mm.
The actual number of steps on 1 less than the calculated value. This fact is easy to accept if the first step is considered at the floor level.
Step parameter according to Blondel:
169 × 2 + 294 = 632 mm.
Hence, size is acceptable, is organic and lies within the average human step. We determined the width of the tread and the height of the riser for easy movement, but this is not enough to build a comfortable and safe staircase.
Line of march and middle line of march
travel line (A) is a horizontal projection of the imaginary movement of a person along the steps. Passes in the distance 300-500 mm from the inner edge of the stairs. This average size determines handrail comfort. The children will go closer to the railing, adults - farther.
Sometimes for direct march, this size is neglected, since the edges of the steps are parallel.
If the width of the stairs is up to 1000 mm, then the line of motion will coincide with the middle line of the march. If more 1000 mm, then the travel line is shifted to the handrail. The calculation algorithm is as follows:
With chalk or a plumb line draw the intended line on the floor(or lines) of the course. Fix the size with a tape measure and correlate it with the height of the stairs. It's great if the line of motion more than the height in 1,7 times - then the slope will be 30 °.
All received indicators of the size of the tread calculate using Blondel's formula to determine the optimal one.
The relative value of the rise of the march (angle of rise)
In construction practice, the angle of elevation, as a rule, is in the range from 20 before 50 degrees, but stairs with an angle from 30 before 45 degrees.
Dependency table step sizes from the angle of inclination:
Choice tilt angle causes a margin of distance (critical height) of at least 2000 mm from any step to the ceiling or any protruding element of the building (beams, parapet):
critical altitude convenient to check, drawing the calculated steps on any sheet material or right on the wall. As design practice shows, very often a line drawn from a ceiling or a dangerous ledge will be less than the desired value.
It is for this reason that it is not possible to design a staircase that is gentle enough. With an increase in the angle of inclination, comfort decreases, therefore, with a low average height of all households, sometimes this size is still underestimated.
In the already mentioned work of Novitsky O.V. "Modern stairs. Design, manufacture, installation.» a real practical case is considered, in which even 6 options for the location of the stairs in the room.
In any case, the final result is usually golden mean between many conflicting arguments.
March width
March width determined throughput stairs (number of people per minute in the bottleneck) and assumes comfortable movement of an adult.
For indoor stairs building codes determine this value (the dimension from the wall to the railing or between two railings on the left and right sides) at least 900 mm, in luxury homes 1250-1600 mm.
Provided width exceptions flight of stairs ( 0,8 m) some types of stairs (for example, in garden houses), but when designing a staircase, this size should be guided only in conditions of a severe lack of free space in the room.
Width less than 0.8m can afford auxiliary structures , for example, stairs to the basement or to the attic.
Standard elements
Every good owner knows how to count money. Building stairs is no exception. Can good to save if the details of the stairs at the design stage turn out fit to standard blanks accepted on the territory RF.
Economic Considerations can become the key argument that will allow the owner to choose the only option for the location of the stairs from several possible ones.
1. Standards on the steps.
Available with fillet R12.5. invitations steps:
| № | Size, mm |
| 1 | H 220×400×1200, R200 |
| 2 | H220×400×1400, R200 |
Winder triangular stage custom size custom-made is calculated as a rectangular one (the necessary one is simply cut out of it). That's why it is advisable to order rectangular. The cost is identical, and trimmings will come in handy in the work.
Large steps can be made from furniture board sizes:
| № | Size (H×W×D), mm |
| 1 | 38×400×2000 |
| 2 | 38×500×1500 |
| 3 | 38×500×2000 |
| 4 | 38×700×1500 |
| 5 | 38×1000×1000 |
| 6 | 38×1100×1100 |
| 7 | 38×1200×1200 |
2. Riser.
| № | Size (H×W×D), mm |
| 1 | 18×180×900 |
| 2 | 18×180×1000 |
| 3 | 18×180×1100 |
| 4 | 18×180×1200 |
| 5 | 18×180×1300 |
| 6 | 18×180×1400 |
| 7 | 18×120×900 |
| 8 | 18×120×1000 |
| 9 | 18×120×1100 |
| 10 | 18×120×1200 |
| 11 | 18×120×1300 |
| 12 | 18×120×1400 |
3. Facing board.
| № | Size (H×W×D), mm |
| 1 | 18×200×2000 |
| 2 | 18×300×2000 |
| 3 | 18×350×1000 |
| 4 | 18×350×1500 |
| 5 | 18×350×2000 |
| 6 | 18×350×2500 |
| 7 | 18×350×3000 |
| 8 | 18×350×3500 |
4. Beam.
| № | Size (H×W×D), mm |
| 1 | 80×80×1200 |
| 2 | 80×80×2000 |
| 3 | 80×80×2500 |
| 4 | 80×80×3000 |
| 5 | 100×100×1200 |
| 6 | 100×100×2000 |
| 7 | 100×100×2500 |
| 8 | 100×100×3000 |
5. Bowstrings.
| № | Size (H×W×D), mm |
| 1 | 40×350×2500 |
| 2 | 40×350×3000 |
| 3 | 40×350×3500 |
| 4 | 40×400×4000 |
| 5 | 50×300×3500 |
| 6 | 50×350×3500 |
| 7 | 50×400×4500 |
6. Handrails.
The length of the handrails can vary from 3500 before 6000 mm. And here are the dimensions sections constant:
| № | Section (W×H), mm |
| 1 | 40×70 |
| 2 | 45×70 |
| 3 | 45×80 |
| 4 | 45×90 |
| 5 | 60×60 |
| 6 | 70×70 |
| 7 | 70×90 |
| 8 | 80×100 |
7. Balusters.
Diameter round balusters - 30 or 47 mm. Length all varieties up to 900 mm. Sections square items:
| № | Section (W×H), mm |
| 1 | 40×40 |
| 2 | 45×45 |
| 3 | 50×50 |
| 4 | 60×60 |
| 6 | 70×70 |
| 7 | 80×80 |
| № | Diameter, mm |
| 1 | 75 |
| 2 | 95 |
| 3 | 115 |
| 4 | 140 |
| 5 | 145 |
More at the stage of calculations you should familiarize yourself with the price list of the nearest supplier within walking distance.
So, it is not the gods who burn the pots. We hope we succeeded dispel the myth that the design and construction of stairs is available only to the elite. Read articles, literature, which we referred to in this text, take measurements, sketches and drawings.
Task in dry matter looks simple: based on the layout of the house, the location of the stairs, the aesthetic preferences of the owners, you need perform parameter calculations given in the article. It remains only to organically fit the indicators into the norms of comfortable and safe movement on country house or multi-level apartment.
We wish you comfort and goodness in your home.
In the process of building a residential building, the stairs must be given Special attention still at the design stage. Unfortunately, not everyone understands this. The absence of the house project itself, a low-skilled team of builders and other circumstances often lead to the fact that outwardly beautiful stairs are not very convenient to use, and if there are children and the elderly in the house, they are completely dangerous. I state this with authority as the mother of a three-year-old hyperactive baby who regularly flew down the stairs of our attic apartment from one and a half to two years old. And all because the developer was too lazy to be puzzled by compliance specifications such important detail housing to established standards.Stair calculation program
So, the stairs in the house should be comfortable in the first place. Especially if you plan to actively use it. And if you build a house, not taking into account initially required area to place it, you will subsequently have to puzzle over how to fit it into a limited space in such a way that one day you don’t count all the bones for yourself during the descent from the second floor. Pro appearance design, its relevance and harmony with the interior in individual cases I won't say anything at all. Most often, if you do not initially think over the placement of the stairs and do not calculate the areas necessary for this, you have to sacrifice something: either beauty or convenience. And sometimes both. In order not to face such problems, use the calculator for calculating the stairs. He will help you do everything necessary calculations online, pick up optimal parameters construction, based on the available space, or, in the case of calculations at the design stage of the house, select the dimensions of the required area to accommodate the most comfortable stairs- and all this is absolutely free.Calculation of a straight staircase on bowstrings
On this page you will be able to calculate the straight staircase on bowstrings. A straight staircase takes up little space in width, while it requires quite a lot of space in length. It is optimally suited for placement in spacious rooms of low height and is usually installed along the wall, limited to the side by the railing. To avoid losing usable area, under the stairs you can place a dressing room or arrange a small workplace(as, indeed, a place to relax or something else - the flight of fancy is unlimited). A straight staircase consists of one row of steps - a march and is called a single-flight. Since the stairs of this type are not equipped with intermediate platforms where it would be possible to stop and rest during the ascent, it is extremely important to calculate optimal size steps and their height. At the same time, such parameters should be achieved in which walking up the stairs would be carried out in the rhythm of a step familiar to a person. The angle of inclination of the straight staircase is also important. The lack of platforms and turns that could hold a person in case of a fall leads to the need to try to make the stairs as gentle as possible (angle of inclination 30 ° -45 °, no more).Calculation parameters and results
The program for calculating stairs takes into account several basic parameters: Desired / current dimensions of the area that the stairs will occupy; The height of the room; Desired number of steps and their thickness; Step protrusion. After all the values are entered, the online calculator will calculate. For the convenience of printing, it is possible to display the result in a separate window. In the calculation results, you will see a general drawing of a staircase, a drawing of a step template and a drawing of a bowstring with detailed explanations. If the parameters of the stairs do not comply with the standards and recommendations of SNiPs, which can make the stairs inconvenient to use, the program will report this and recommend changes with their specific indication (for example, increase the number of steps). This way you can "play" with the options until you find the best fit. A straight staircase is considered the most convenient to use, does not interfere with the movement of furniture to the upper floors and the least dangerous of existing varieties stairs. If it is made in strict accordance with the calculations and recommendations of our construction calculator, it will become a comfortable and safe constructive part of your home.Rice. one General drawing stairs
- Y - opening height - usually determined by the height of the floors of your house
- X - the length of the opening - depends on how much space you can allocate in your house for the stairs
- W - the width of the stairs - depends on how much space you can allocate in your house for the stairs
- Z - step thickness - geometric parameter material (for example, boards) from which you plan to build a staircase
- F - protrusion of steps - the distance by which the upper step will hang over the lower one
- A - thickness of the bowstring - a geometric parameter of the material (for example, pipes) from which you plan to make the bowstring of the stairs
- B - support thickness - a geometric parameter of the material (for example, pipes) from which you plan to make stair supports
- H - the height of the step above the bowstring - the vertical distance between the step and the bowstring
- D - size - the distance at which the step will hang over the support in the direction of ascent
- U - the angle of inclination of the support to the vertical
- C - number of steps - how many steps will you take most comfortably to move from floor to floor
"Upper step below floor 2nd floor: SP" function
Rice. 2 Execution of stairs with the upper step below the floor 2 floors
Depending on the mutual placement of the structure and the floor of the upper floor:
- The top plane of the top step is flush with the plane of the floor of the top floor;
- The upper plane of the upper step is lower than the floor plane of the upper floor by the height of the step.
The choice of this or that mutual placement may depend on: the thickness of the interfloor ceilings, the desired relationship between the number of steps and their height, the length of the blanks for the stringers and the length of the opening, the desired angle of inclination of the stairs, or simply the tastes and preferences of the owner of the house. Please note, in the figure, in which the upper step is below the floor of 2 floors, the thickness interfloor overlap more than in the figure, in which, the upper step is at the floor level of the 2nd floor. If the thickness of the floor is less than the height of the step, the stringer simply does not rest against the floor (therefore, when demonstrating the second option, this thickness had to be increased).
"Black and white drawing:" function
Rice. 2 Black and white drawing of stairs
It is useful to use this function in two cases:
- If you are used to working with standard GOST drawings, and, accordingly, better perceive graphics without color filling
- If you are going to print the results of the calculator. Then you will spend less paint / toner and the visual perception of the drawings on paper will be better. And, of course, this function is used when printing on a black and white printer.
"Change lift direction: LR" function
Rice. 4 View of stairs with different directions of ascent
A specific staircase, which is placed in a certain way in the house, can be approached from the side from two sides or only from one side - when the staircase is in contact with the wall. In the latter case, there are two options for placing the structure relative to the observer:
- Rise from left to right;
- Climb right to left.
This function allows you to visualize both of these options.
Calculation of metal stairs
The main result of this calculator:
- Information required for the manufacture of bowstrings and supports
- Information required for the manufacture of steps
According to this information, the parts from which the structure is assembled are made, and the calculation of the frame of the iron staircase is also performed.
All other drawings show the final view of the structure: after joining the bowstrings, supports and steps with each other.
A feature of this calculator is the implementation of two functions:
- Evaluation of the convenience of the stairs;
- Adjustment of the design of the stairs.
The assessment of the convenience of the stairs is carried out according to three criteria:
- Compliance with the design of the average stride length. According to this criterion, the sum of step depth and two step heights should equal the average step length. The average human step length is 63 cm.
- Step depth. Comfortable step depth - from 28 cm. With a given opening length, you can adjust the step depth by changing the protrusion. Step calculation metal stairs done with a handy calculator.
- The angle of the stairs. Optimal Angle the slope of the stairs is from 30° to 40°. At angles of inclination from 20° to 30° and from 40° to 45°, the comfort level of moving between floors is significantly reduced. Slope angles outside the above limits can significantly affect the speed of movement between floors and the level of safety of the stairs, as well as the amount of metal used in the work.
According to the evaluation results specific design the indicator of the level of convenience for each of the criteria is given, and the ladder is assigned general level facilities. The online metal stair calculator evaluates whether a stair meets well-known criteria for convenience, but you should always remember that your stair in your home should serve your purpose as effectively as possible. And if, in accordance with these goals, you need to build the most non-standard staircase in the world, also with your own hands - go for it.
If there is a need to improve the design of the stairs, the calculator gives advice on how to do this:
- Decrease/increase the number of steps;
- Increase the protrusion of the steps (if the depth of the steps is insufficient for comfortable walking);
- Decrease / increase the length of the opening.
After the design is corrected, the normalized parameters will become closer to the ideal, but it is possible that such an adjustment will have to be carried out several more times.
Instructions for the metal staircase calculator
In order to calculate a straight metal staircase using this calculator, you need to know the height of the floor, the size of the space that you can allocate for the stairs, the materials from which you are going to build it, and, of course, the purpose of its use.
Before starting work, it is necessary to carefully consider all the nuances: whether the staircase adjoins the wall, or is in contact with the interior elements of the house, and how this should affect the structure itself and the process of its construction. Possibly to choose correct option in terms of size and design, you will have to use a calculator to calculate and compare several. Before starting to process the material, make sure that the detail drawings correspond to the ladder that is right for you and your purposes. When building, attach the parts to each other, and the staircase itself to the house so that you can guarantee the reliability and strength of the structure for decades.
Ladders on metal bowstrings presented on our website can be divided into categories according to four mutually dependent criteria:
1. Length dimension
a. Maximum length- all steps are placed on the same march;
b. Medium length - steps are placed on two marches;
2. Width dimension
a. Maximum width - the steps are placed on two marches, the width dimension is regulated by changing the number of steps on the corresponding pair of bowstrings;
b. Average width - the steps are placed on two parallel marches, the width dimension is equal to two widths of the stairs;
in. Minimum Width- all steps are placed on the same march, the width dimension is equal to the width of the stairs;
3. The complexity of manufacturing
a. Easy to make - made from bowstrings and rectangular steps;
b. The average complexity of manufacturing - is made from bowstrings, rectangular steps and platforms;
4. By the type of bowstrings and the fastening of the steps to them, the stairs are divided into two categories:
a. On supports - the bowstring is a solid beam, to which supports for steps are attached;
b. With a zigzag bowstring - the bowstring consists of many mutually perpendicular parts located horizontally and vertically.
In each specific situation the floor height is already set. Based on your own preferences, you can choose the level of convenience: either the convenience criteria are met, or the stairs are flatter, or steeper, etc. With this information, you can talk about the number of lifts (steps and platforms) in a particular situation .
How to calculate a metal staircase in an online calculator with drawings?
Imagine that we have, for example, 13 lifts - steps and platforms. The design of the stairs is the shape of these rises (steps, platforms) and how these 13 rises are placed relative to each other. The calculation of a metal staircase in our calculator is carried out in the following ways.
It is possible to place all these 13 rises in one row along the length of the opening - “Metal staircase”, ““. In this case, your stairs will have a maximum dimension in length, a minimum dimension in width and will not be difficult to manufacture. You can calculate the metal staircase to the second floor using a convenient and intuitive program.
You can place these 13 rises in 2 rows, rotated relative to each other by 90 ° (when viewed from above) - ““, “” (for example, 4 steps on the lower march, a platform and 8 steps on the upper march). In these cases, your staircase will have an average length dimension and an adjustable width dimension. The calculation of the steps of a metal staircase will help to correctly calculate the amount of material that will be needed to complete this work.
These 13 rises can be placed in 2 parallel (when viewed from above) rows placed side by side - "°", "" (for example, 4 steps on the lower march, a platform and 8 steps on the upper march). In these cases, your stairs will have an average dimension in length and an average dimension in width.
Do-it-yourself staircase construction own house should always be preceded by calculations and drawing up a project - an assembly drawing. Without this, it is simply impossible to build a truly comfortable, reliable and interior-decorating structure. When carrying out the necessary calculations, of course, they start from real conditions, that is, from the features of the location of the future staircase.
One of the basic parameters of any staircase is the size of its steps - their height and width. These values are not taken arbitrarily - they must obey certain rules, which are based on maximum convenience and safety of people moving around flight of stairs. There are several methods for determining the parameters mentioned - according to tables, according to Socalled "safety formula" stairs, according to the graphic construction of its profile. We offer the reader a calculator for calculating the dimensions of the stairs. It needs some explanation, which will be given below.
Stairs are special. engineering structures, which serve to move people between the levels of the room. And, since human safety directly depends on them, these systems require especially careful calculations in accordance with existing requirements and norms. We will talk about how to correctly calculate the number of steps in the structure and the distance between the stepped elements in an article containing detailed instructions calculations, many quality photos and educational video.
The comfort and safety of the system depends on how correctly the calculations were made to determine its main dimensions.
Correct calculation is an important step in the construction of stairs
Walking up stairs requires a person to spend twice as much energy as when moving on a flat surface. That is why it is very important to make the design not only safe, but also comfortable and convenient for long-term operation. This goal can be achieved if the number of steps is calculated accurately and without errors.
Before starting construction, make a sketch of the structure on paper and make basic calculations, guided by generally accepted GOSTs and requirements During the large-scale production of stairs at specialized enterprises, their compliance with the established state standards and safety requirements is most carefully checked. Therefore, the calculations of these systems are carried out exclusively by qualified specialists with an engineering education.
If the design is made specialized enterprise, its calculation is performed by professional engineers and architects
But what if you decide to make a staircase for your home or cottage yourself? Is it possible or not to make a correct calculation of the steps of the stairs, to calculate their number and basic distances on their own? If you strictly follow the instructions below and the existing GOSTs, then this is not impossible.
Even such a magnificent staircase you can make with your own hands, if you apply maximum patience and effort to this. Estimated characteristics of stairs
Before starting computational work to determine the number of steps and their sizes for ladder construction, first we will deal with the definitions that we will need to apply.
The photo clearly shows the main parameters that must be determined before proceeding with the manufacture of stairs So, we need to calculate the following parameters:
- step depth (tread);
- tread height (riser);
- step width;
- thickness (in the presence of additional overhead elements);
- the number of steps in the march.
Now let's take a closer look at how the calculation of the required values \u200b\u200bis carried out.
The total length of the stairs is dependent on such values as the height of the room, the width of the step and the height of the riser Step calculation
The calculation of the dimensions of the steps is carried out according to a special formula, according to which the safety and convenience of the design assumes the equality of the sum of the height of the riser multiplied by two and the depth of the tread with the average step of an adult.
The calculation of the staircase structure is a rather laborious task, so if difficulties arise, you can involve professionals to solve them.
For normal straight marches
It is known that the step length of a person moving horizontally is 60 - 65 centimeters.
We get the formula:
2A + B \u003d 60 cm (65 cm), where A is the segment between the steps, B is the depth of the tread.
For a comfortable location of the entire human foot on the steps of the stairs, it is necessary that its width (depth) be in the spectrum between 20 and 32 centimeters.
Calculating the main parameters for ordinary straight marches is not difficult - it is enough to adhere to generally accepted standard values However, when calculating the staircase structure for your home, you must also take into account the physiological characteristics of your family. For example, if there are children, elderly or disabled people in the house, then make the width of the tread wider and the height of the steps small for more comfortable movement.
When calculating the size of the steps, use the special universal formula Tip: do not narrow the steps, as this will make the stairs less safe for movement, and it will be difficult to descend them.
If, for some reason, you cannot make a sufficiently wide step, then tread overhanging the lower surface. However, keep in mind that according to the requirements of GOST, such an overhang should not exceed:
- 3 cm - if the step is made of wood;
- 5 cm - if the tread is made of reinforced concrete.
When building a staircase, you can always use ready-made drawings with all necessary calculations All of the above applies to simple ladder systems. When designing a system with winder-type steps, it should be taken into account that the depth of the closest stepped part should not be less than 10 cm, and its overhang above the surface should not exceed 5 cm.
Calculating the dimensions of treads for a conventional straight ladder system does not require special knowledge and even a beginner can do it. For winder steps
To calculate running products, you will have to work harder, but first you need to draw future system on the paper.
The winder stairs are pretty complex design requiring preliminary accurate calculations 
When building a system with winder steps special attention should be paid to the calculation of the dimensions of the treads Calculation of the number of steps
After the necessary calculations have been made, indicate the values \u200b\u200bfound on the finished drawing, and then, when manufacturing the stairs, clearly follow your calculations.
If all calculations for determining the main dimensions of the stairs are performed correctly, then the finished system will be comfortable, convenient and functional. Related videos
The video below will help you get more full information on our topic.
Where to buy a finished staircase
In the event that you do not have the proper building skills for the independent construction of a staircase system in your house, or simply do not have large quantity free time to carry out these works, take advantage of the offer of our Super Stairs online store and purchase a ready-made high-quality and stylish staircase for your home.
Stylish and modern staircase from model range"Elegant" will become a real decoration of your home, the price of the finished structure is only 50,390 rubles
