A modular staircase can be purchased in two ways: order from the manufacturer custom production or buy a ready-made version in construction hypermarkets. Of course, the best option is to buy from the manufacturer, however, the second option also has its advantages.

Ready-made or made to order

In many construction hypermarkets you can find ready-made modular stairs. Such designs are sold on an “as is” basis. They are stored in a disassembled state and assembled directly at the buyer's premises. When you buy a ladder in a store, you get a standard design, which in most cases is in no way inferior to its analogues in terms of strength, reliability and ease of assembly. However, “ready-made” options have their drawbacks:

• Fixed sizes
• You cannot select the material of steps and railings
• You cannot choose the color of the frame and steps

If you order a modular staircase from the manufacturer, they will help you choose the optimal configuration, calculate the correct descent geometry, select railings and color scheme based on your wishes.

• Any sizes
• Large selection of materials and fencing
• Color selection based on customer samples

Low prices for ready-made kits are due to the use of cheap materials: steps made of pine or Christmas tree, steel fencing in basic gray color. But even with this configuration, a staircase from a hardware store is not always cheaper than a custom-made one.

Why you shouldn't buy a staircase with fixed dimensions

• When buying a set of modular stairs, pay attention to its dimensions. As a rule, they are indicated on the packaging. If you cannot find the sizes, contact a store consultant for help.
• If you contact a company where you can order turnkey staircase manufacturing, you do not need to worry. Experts will calculate the dimensions of the future staircase themselves.

Remember that kits from stores are designed for a fixed height. The display case may contain ladders of 2600, 2800, 3000mm. To fit right size, you will have to trim the modules using a grinder. The length and width of the stairs are also fixed.

Examples of configurations that have a fixed height, width and length:

On the highest step that is not part of the opening, you should not touch the ceiling with your head. The manufacturer who delivered the stairs to the store could not take into account the size of the openings of all customers. Be prepared for the fact that under such a staircase you will need to increase the opening in the ceiling.

How to remove a freeze

If you still decide to go for a finished staircase, it won’t hurt to take preliminary dimensions of your room. , your dimensions can be applied on top of the image.

1. Opening width
2. Opening length
3. Height from floor to ceiling
4. Height from floor to floor of the second floor
5. Dimensions limiting the stairs on the first floor*

*(For example, if the staircase runs along the wall in which the door or windows are located.)

There are no universal stairs. Each seller has their own fixed sizes.

The best option, there will be an order for a modular staircase from a specialized company. This is guaranteed to save you from the problems that you will probably encounter in hypermarkets.

Modular staircase- one of the most important structures of a house or apartment, designed to connect two floors to each other. She happens to be mandatory element architecture and part of the design, must be in combination with the interior of the room, creating a single architectural ensemble with it.

A modular staircase can be assembled with your own hands if you have some knowledge in the field of construction. But at all stages it is necessary to adhere established rules. Incorrect installation or connection of parts can, over time, lead to creaking of the structure, its failure, or injury to people. Play an important role quality building materials, which will serve for a long time and will not begin to break and collapse over time under the influence of loads.

U modular staircase there are several significant advantages over other types of stairs:

• assembly is possible without welding;
• may have different shapes. Based on the shape of the room, your preference and imagination, you can choose the desired configuration;
• staircase modules can be assembled to whatever height is needed. In this case, the slope of the modules is adjustable.

There are a number of disadvantages that are worth paying attention to:

• the modular design is somewhat weaker in strength compared to solid models. Butt joints may become loose over time, which requires periodic inspection of the structure;
• high price.

Kinds

Before starting installation indoors, select the right type designs. The following types of modular stairs are used:

Stairs are assembled using separate prefabricated elements. This will allow you to make a structure of any shape you need: straight, screw, under the right angle. For rigidity, the stringers are attached at the top and bottom to the support modules. For additional rigidity, every linear 1-1.5 meters a supporting pipe is mounted to the stringer, which is attached to the floor or a support bracket with mounting to the wall.

Important! When installing a modular staircase, remember that the main thing is convenience and safety. Therefore, try not to make more than 2 march turns.

Assembly options

There are three main options for installing modular structures. In order to assemble a modular staircase made of metal, you need to carefully study all the options, since they have positive and negative aspects.

Module to module

The chain stringer is assembled from elements according to the “module to module” principle, after which each element is secured with two overhead plates with locking screws. These stairs are the first of a line of modular ones, but they have some negative qualities:

• have a fixed step pitch;
• the assembled staircase has a noticeable slight curvature that cannot be removed;
• During operation, such a structure begins to sag due to spontaneous loosening of fasteners.

Positive quality This installation option is simple and quick to assemble the entire staircase.

Threaded rods

In this embodiment, the connection of the staircase elements is carried out using threaded rods. Unlike a chain stringer, the ladder does not sag, but has minor disadvantages:

• complexity of installation;
• fixed steps (as in the “module to module” option);
• annual adjustment and tightening of fasteners.

Idea! Fasteners can be strengthened by welding. This is only relevant if you do not plan to disassemble and rearrange the stairs in the future.

Based on the clamp principle

A modern method that took into account all the shortcomings of previous generations. A positive quality is the ability to adjust the height and length of the step. In this version, the flange for mounting the step can be unfolded. The load on the fastenings is distributed evenly, so the fastening points will not become loose. Instead of split pipes, the staircase elements are secured with long studs that take the load. The disadvantage may be the difficulty of assembling this version of the stairs.

Installation of the above options is carried out using bolts. These fasteners are mounted to distribute the load along the edges of the steps, which increases their rigidity and reliability of the entire structure.

Important Notes

In order for the ladder to be used for a long time and not cause any complaints, the following notes must be taken into account:

• before installing vertical supports, it is necessary to prepare concrete platforms for them. They will serve as a load-bearing foundation;
• side support brackets may only be mounted in a concrete main wall with a thickness of 20 centimeters or more;
• if the ladder is mounted to wooden floor, then the logs must first be strengthened.

Making a modular staircase with your own hands

The easiest way is to buy a ready-made modular structure and assemble it like a structure. However, if you are used to doing everything yourself, you will need some assembly guidelines of this type stairs. So, let's figure it out.

Preparatory stage

1. Make a plan of the room where the stairs will be installed. It is recommended to make the plan to scale using a special program or graph paper.
2. On the same paper, draw a side section of the room indicating the height of the ceiling. To calculate, you need to take the starting and ending points flight of stairs according to the floor level of the lower and upper floors. Having the height and width, using the formula for calculating the hypotenuse of a right triangle, we calculate the length of the flight of stairs. In this case, it is necessary to take into account the safe angle of inclination of the stairs from 30 to 45 degrees. After this, we calculate the number of steps. Length flight of stairs divide by the permissible step height.
3. Draw the planned model. Approximate fixation of the steps is carried out at a height of 15-16 cm from each other. If the last step has some average height, then this distance is equally distributed among the other steps.
4. Place a horizontal projection of the steps on the floor plan.

Regardless of the purpose of the ladder and the materials from which it is made, it must comply regulatory requirements, which are used during design and calculation:

• the width of the stairs must be more than 90 cm;
• the angle of inclination of the flight of stairs should be within 30-45 degrees, which meets safety and ergonomic requirements;
• steps must have a depth of at least 27 cm;
• the distance between the fence supports should not exceed 15 cm (if there are children - no more than 12 cm);
• the side guard must withstand a load of at least 100 kg.

1. Execute general drawing staircase modules, identical in appearance and size.

Main stage

The following actions must be performed in the given sequence:

1. It is necessary to decide what material the steps will be made of. The best option is steps made of hard wood. The average thickness of the step is 4-5 cm.
2. To install the steps, make modules. In domestic conditions, making round modules is quite problematic. It is more convenient to order them from specialists based on your drawings. To make square modules at home, you will need a profile pipe more than 5 mm thick. The parts are fastened using welding and bolts.
3. Install the load-bearing supports on concrete platforms. After installation, the supports must be concreted.
4. Based on your drawings, cut from a suitable pipe required quantity parts.
5. Make connecting holes in the cut and ready-to-install parts.
6. Mount the entire structure, attaching the structural modules to the supporting supports.
7. If necessary, you can strengthen the structure by welding neat metal corners to the staircase modules.
8. Paint the stairs to remove any rust and dirt.
9. Install pre-prepared steps.
10. Equip the staircase with a railing that you can choose based on your liking and design.

Assembling a finished modular staircase

Assembly of a finished modular staircase (spiral design)

Having completed the installation, it is necessary to conduct a safety test of the structure and you can begin to operate it.

When building houses and cottages with two or more floors, the question often arises: what kind of staircase design to choose?

At the same time, it should be comfortable, beautiful, and occupy a minimum of usable space in the room. One option is to use modules when assembling a flight of stairs. What types of modular stairs there are and their assembly, which can be done at home, will be discussed in this article.

A modular staircase is a structure consisting of identical, securely fastened modules with steps that are attached with studs, bolts or screws to a central stringer.

Prefabricated modular stairs are designed for installation between two floors when the height of the structure does not exceed 3.5 meters.

The main loads on the product are the ladder’s own weight and the weight of people moving along it. They are transmitted to the upper and lower modules, and to the support stand, which is installed if necessary. Per module maximum permissible load may not exceed 250 kg.

When choosing a design, you need to pay attention to the type of staircase support. There are two design types:

1. Supported by a bracket or cantilever mount;
2. Using support posts, which are recommended to be installed through 4 - 7 modules, with a span of 2.5 m or more or due to the impossibility of firmly attaching the finishing element to the interfloor ceiling.

The optimal tilt angle for models is 39° - 43°, but sometimes up to 65° can be allowed. The presence of special inserts allows you to adjust the modules in height. Minimum height The tread of the structure is 180 - 200 mm, and the maximum is 240 mm.

The advantages and disadvantages of the models are presented in the table:

Advantages

Flaws

A wide variety of model design styles; Simple installation and dismantling of the stairs; Possibility to adjust the angle of rotation of the structure up to 360°. An exception is stairs with elements connected with studs; Steps can be made of a variety of materials; They occupy a minimum of usable space indoors; Relatively low cost of the ladder; A fairly simple repair, which is explained by the replacement of standard parts from which the structure or its individual modules are assembled.

Possibility of staircase loosening and subsidence. To prevent this, it is necessary to install additional support posts, but this may ruin aesthetic appearance products; When the flight width is more than one meter, when a person moves along the stairs, a large bending moment occurs, which leads to rocking, vibration and possibly tilting of the entire structure. In terms of strength characteristics, such models are inferior to all-welded products.

Types of products

Prefabricated modular stairs, depending on the configuration, are:

Type of design	Peculiarities
	These are ordinary straight models of stairs with wide steps. Very convenient and reliable to use, but quite large in size and not entirely compact.
	They take up a minimum of space, but are not very convenient to use, compared to marching structures (read more).
	This is with intermediate platforms. Occupy less space than marching ones, and quite comfortable. Made from two or more marches.

There are also subtypes of structures that depend on the geometry of the descent, which can be seen in the photo:

The most common version of modular models is a single-flight staircase, and the most popular configuration is a rotating one.

The popularity of the modular system is explained by its simplicity and relatively low cost.

The design includes:

1. Stair frame. It contains:

• Top or finishing module;
• Middle module;
• Bottom or starting module.

1. Steps;
2. Supporting vertical posts;
3. Balusters;

The construction frame is usually made from:

• Of stainless steel;
• Structural steel, which is then coated with polymer or special paints and varnishes;
• Wood, upon individual order.

Tip: When making a product with your own hands, for the frame you should choose rolled sheet metal with a thickness of at least 3 mm. The best option is a sheet thickness of 4 - 5 mm.

The following materials are used to make steps:

• Solid wood;
• Pressed laminated wood;
• PVC, plastic;
• Pressed plywood.

Features of the modular staircase design and options for its assembly

The video shows how to assemble a modular staircase with all the details.

But before installing the structure, the following nuances should be taken into account:

• To make movement along the stairs comfortable, it is necessary to make an opening in the floor of the second floor with dimensions of at least 0.9 x 2.5 m;
• To fasten structural parts together, it is recommended to use screws or bolts with a length of at least 15 mm;
• When manufacturing a 180° rotating staircase, it is necessary to provide for at least 6 modules and the same number of winder steps;
• When manufacturing a 90° turning staircase, it is necessary to provide for the presence of at least 4 modules and the same number of winder steps;
• The support stand must have a support base measuring at least 60 x 120 mm;
• At least 4 fasteners are used to secure the rack. They can be bolts, anchors, studs.

To draw up a plan for assembling a modular staircase and perform its calculations, it is necessary to take into account the following factors:

1. Angle of inclination of the structure. The most convenient angle is 45°, but it can be different, depending on the width of the tread and the height of the riser, or the height and width of the step. The table below shows these dimensions depending on the angle of inclination;
2. The height of the stairs themselves. To do this, measure the height from the floor of the lower floor to the floor mark of the upper floor. This is necessary to calculate the total number of steps and their sizes, and select the most optimal angle of inclination.

For the manufacture of modular stairs ideal sizes are considered:

• Step height from 170 mm to 200 mm;
• Step width from 200 mm to 260 mm;
• The length of the steps depends on the type of structure. For screw, it is selected from 1 m to 1.2 m. For marching and turning, from 1.2 m to 1.5 m;
• The tilt angle of the product is 30° - 45°.

After selecting the model parameters, you can use any computer design program, for example, ArchiCAD.

After entering all the data into the program, it creates a model of the staircase. If necessary, changes can be made to it.

Tip: To take into account all the details, the staircase design should be done simultaneously with the development of the house project. If you have no experience in carrying out such work, you should contact specialists.

The assembly of a modular staircase, depending on its type, can be done in the following ways:

• "Module to module";
• “On a threaded rod”;
• "On a clamp."

Assembling a “module to module” staircase

The process of assembling a “module into module” structure is as follows: a pipe of a smaller diameter in the upper module is installed in a pipe of a larger diameter in the lower module.

In this case, the modules can be made solid, cast from metal, or welded. There are connecting pipes on both sides of the elements different diameters and heights. The pipe plates are bolted together.

The pros and cons of the module-to-module technology are presented in the table:

Assembling a staircase “on a threaded rod”

This option includes many individual module parts connected to each other by threaded rods.

The table shows the advantages and disadvantages of the process:

Assembling a ladder “on a clamp”

Assembly “on a clamp” is the rigid fastening of module parts with screws or bolts. Typically the module consists of two parts:

1. horizontal, consisting of two pipes connected to each other by a plate by welding;
2. vertical is a pipe with a flange that serves to attach the step. In this case, the two parts are fastened to each other and to the adjacent module with coupling bolts. The position and direction can be any; you can choose an arbitrary angle of rotation of the structure.

Advantages and disadvantages of assembling the model “on a clamp”:

Video assembly of a modular staircase will help make the structure more reliable, which will be used without complaints for a long time.

In addition, when installing the model, it is worth remembering the following tips:

• Vertical posts must be installed on pre-filled concrete bases, performing the functions of the foundation;
• It is allowed to mate the staircase only with a main wall with a thickness of at least 200 mm;
• When installing the product on a wooden floor, you must first reinforce the joists with transverse bars.

Assembly "on a clamp"

Making stairs

Before assembling the model, you should complete the preparatory stage. This includes:

• Creating a drawing of the room where the modular staircase will be located. It is more convenient to do this on graph paper on a certain scale or in a special program;
• Measuring the height of a room. Image of a section of the room in height with markings of the floor and ceiling on it;
• Schematic illustration of a modular staircase. The steps on it are fixed at a distance of 150 - 160 mm from each other. The drawing will help you accurately determine the required number of steps.

Tip: If the height of the top step is too low, the “excess” must be evenly distributed over all steps of the staircase.

• Drawing a horizontal projection of stair steps on the floor plan. Optimal width structures – 1 meter. It is better to choose steps with a width of approximately 300 mm;
• Preparation of a drawing of modules for fixing steps. All modules must have equal dimensions and shape. When using ready-made modules, such a drawing is not required.

Instructions for assembling a modular staircase:

• Materials for making steps are being prepared. It is best to use hard wood, with board thicknesses of 40 - 50 mm. Screws and glue are used to connect them. Steps can be purchased ready-made. In this case, you should focus on your preferences and design features;
• Modules for fixing the steps are being prepared. It is very difficult to make round parts yourself without the necessary skills. It is better to order them immediately from a specialized company, providing them with your calculations and drawings;

Tip: You can make square modules yourself using profile pipes with wall thickness from 5 mm. To connect all elements, bolts and welding should be used.

• Concrete platforms are constructed for the installation of load-bearing supports on them, which are immediately concreted;
• A suitable pipe is cut into the required number of elements in accordance with previously prepared drawings;
• Holes are drilled in the elements for their fastening;
• The entire structure is assembled, parallel ladder modules are attached to the supports;
• The system is strengthened by the creation of several neat welds. Welded metal corner to modules, when creating such edging of steps;
• All metal elements of the model are cleaned of rust, primed and painted;
• Steps are installed;
• Forged or wooden fencing is installed;
• The quality and reliability of all connections is controlled.

Prefabricated modular staircase is open and sufficiently robust design, which can be used for giving and country house. Like any staircase, it serves to connect two floors and is part of the design and an essential element of architecture. At the same time, the model should fit well with the interior of the room, creating a single architectural ensemble in it.

Moving between floors in country houses provide the stairs familiar to everyone. Their design has remained virtually unchanged since ancient times. But thanks modern trends has changed in design and architecture general form structures, and thanks to new materials, the stairs have become stronger, lighter and more reliable. The most striking example of stairs, combining tradition and modern materials, is a modular staircase. Creating a modular staircase with your own hands will not present any great difficulties, the main thing is to understand the order of work, be able to handle the tool, and also make a drawing with the necessary calculations.

From the outside, modular stairs for the home look airy and unreliable, but this is a deceptive impression. The materials used and the method of fastening ensure that modular stairs high level strength. In addition, another undeniable advantage of such a staircase is the small amount of materials used and the versatility of the design, which allows you to equip a modular staircase in a small area. All this and also modern design And affordable price make modular stairs very attractive for use in the interior.

Choosing a modular staircase

There is nothing complicated about how to choose a modular staircase. First of all, you need to focus on general style interior, own financial opportunities and the feasibility of its installation. It will be important to pay attention to the manufacturer of a particular staircase, as well as its type, the option of assembling the modules and their fastening.

Initially, modular stairs were produced in Italy, and then in Poland. Today, these countries still produce modular staircases for the home. Their products are distinguished by their elegance of form, quality and high price. Products from Poland are inferior to Italian ones, but overall the quality is high.

Over time, Russia picked up the baton. Various companies have launched the production of these ladders, one of which is Stamet. Stamet modular stairs have been produced since 2004, and the company is constantly working to improve their design. Thus, one of the developments of the Stamet company is the Prestige modular staircase, which is perfect for interiors where it is necessary to emphasize the status, refined taste and wealth of the owners. In general, modular stairs Russian production stand out for their reliability and affordable price.

Modular staircase "Premium" from Stamet:

China also produces modular stairs. But, unfortunately, in our market the lion's share of Chinese products is of poor quality and the only thing that attracts buyers is their low price. Find a quality factory modular staircase made in China It is possible, but you should be prepared for a fairly high price.

Modular staircase made in China:

When you start choosing a modular staircase, the first thing you need to pay attention to is the quality of the parts. After all, the reliability of the staircase itself and its external attractiveness will depend on this. It should be noted that the cost of a modular staircase directly depends on the materials used and the quality of workmanship. There is no clear answer to the question of how much a modular staircase costs. For modular stairs the price ranges from 200 USD. up to 2000 USD per linear meter. In this case, it is necessary to take into account the type of connection, material, and also the fact that first-generation stairs are cheaper.

The stringer modules of cheap stairs can be made from low-quality metal, which will lead to the staircase sagging during operation. A wooden elements Such stairs will not be properly processed. Ideally metal parts must be of sufficient thickness so as not to deform from slight effort, and the wooden elements must be free of any cracks or chips. In addition to the external component and high quality workmanship Another important factor influencing the choice of a modular staircase is its type. Below we will look existing species modular stairs, their pros and cons.

Having planned to create a modular staircase in your house, you need to decide what it should be like. Like regular stairs, modular ones can be of several types:

• marching, simple straight stairs with wide steps. They are very convenient for ascent and descent, but due to their design they take up quite a lot of space;
• screw stairs take up the least amount of space, but going up and down them is difficult;
• rotary with intermediate platforms. This type of stairs takes up relatively little space and is quite convenient to go up and down. They consist of two or more marches with turning areas.

But modular stairs have one characteristic What sets them apart from the rest is the chain stringer. It is the central element of the modular staircase design. The stringer itself consists of stacked parts that can be positioned either straight or at an angle, which allows you to make a staircase of almost any shape. The stringer itself is attached to the lower and upper support modules, which provide the necessary horizontal and vertical stiffness the entire structure. An additional element that adds rigidity to the entire structure is a support pipe installed every 1 - 1.5 linear meters. But if there is a solid wall made of brick or concrete nearby, then you can remove this element by securing the steps of the stairs to the wall.

In addition to those described above distinctive features For a modular staircase, there are three more options for assembling modules. Each of them has its own advantages and disadvantages that must be taken into account when choosing a ladder.

The first option for a modular ladder is to create a chain stringer by installing its parts “module to module” and securing them with two plates and locking screws. Such ladders belong to the first generation ladders and have a number of significant disadvantages. Firstly, the step pitch is rigidly fixed and cannot be adjusted. Secondly, after assembly there is a slight curvature that cannot be removed even by tightening the locking screws. Thirdly, metal has such an indicator as “fatigue”, and over time the fastening plates themselves unbend, and the ladder sag. Among the advantages, the simplicity and speed of assembling a modular staircase should be noted. A striking representative of the first generation of modular stairs is the Dream modular staircase. The photo demonstrating modular stairs shows how the string of stairs of the first generation is assembled:

The second option for assembling and connecting staircase modules is carried out using threaded rods. Such stairs do not have such a disadvantage of first-generation stairs as the curvature of the stringer, but this is more than offset by the complexity of assembling the stairs and the impossibility of adjusting the height of the steps. In addition, after a year and a half of intensive use threaded connections they become loose, and you have to tighten them, and this is a very troublesome task. A representative of stairs with a threaded connection is the modular staircase Unika. The photo demonstrating modular stairs shows how a string of stairs with a threaded connection is assembled:

The third version of modular stairs is the result of numerous modifications and improvements to previous models and represents the second generation with fastening of modules according to the clamp principle. The undeniable advantage of these stairs is the ability to adjust the height and length of the steps. In addition to the possibility of rotating the module, you can also rotate the flange itself to which the step is attached. Despite the fact that a threaded connection is used, in second-generation modular stairs the load on the fasteners is distributed differently, and the connections do not become loose over time. A representative of the second generation of stairs is the modular staircase TM “Our Ladder”. The photo demonstrating modular stairs shows how the string of stairs of the second generation is assembled:

Bolts can be used in all three options, but they are most often found in second-generation modular staircases. These simple fasteners, placed between the steps, increase the reliability of the entire staircase.

Calculation of a modular staircase

The creation of a modular staircase begins with the design and calculation stage. For these purposes, you can use a special computer program, such as ArchiCAD. Of course, to use it you will need a certain skill and experience, but with a little desire, even a beginner can do the calculation of a modular staircase. Another option to help with calculations is online calculators. They can be found on the Internet; the interface of such a calculator is intuitively simple and clear. It is enough to enter all the necessary data - the height between floors, the angle of inclination, etc.

When performing calculations yourself, it is necessary to take into account a number of factors that influence the choice of the type of staircase. The main parameter influencing the choice is the space allocated for the stairs. Based on this, it is worth choosing a modular staircase. For ease of calculation, there are a number optimal parameters that are suitable for a certain type of stairs. Spiral modular staircases it is preferable to install on an area of ​​less than 3 m2, and the width of the steps should be at least 100 cm. Of course, the width of the steps spiral staircase can be increased, and the area it occupies will immediately increase. If you want to install staircase with wide steps from 120 cm to 150 cm, you will have to prepare a space more than 4 m long and 175 cm wide, which is about 7 m2. If it is less, then the stairs can turn out to be very steep. The way out of the situation when the space is less than 7 m2, but more than 3 m2, is to arrange mid-flight rotary modular staircase with one or more sites.

Another key factor in the calculations is staircase angle. Thus, an angle of 45° is considered the most convenient, but there are times when it cannot be maintained. Two more initial parameters depend on the angle of inclination of the stairs. This is the height of the riser and the length of the tread, in other words, the height and width of the step. The table below shows these dimensions depending on the angle of inclination.

The next parameter required for calculations is height of the staircase itself. Everything here is extremely simple. To do this, it is necessary to measure the height from the floor of the first floor to the floor level of the second floor. This is needed to calculate total steps and their sizes, as well as select the most optimal angle of inclination.

Modular staircase: dimensions, which are considered ideal:

• step height from 17 cm to 20 cm;
• step width from 20 cm to 26 cm;
• The length of the step depends on the type of staircase. For screw from 100 cm to 120 cm. For marching and marching-turning from 120 cm to 150 cm;
• tilt angle from 30° to 45°.

As a result, after entering all the necessary data, the program will create a model of the staircase, which you can review and make changes if necessary. It is most convenient to design a staircase at the same time as designing a house. This makes it easier to take into account all the details. If you don’t want to do such a project yourself, you can turn to specialists. Moreover, companies that produce and sell modular stairs make a drawing for free when ordering a staircase.

Modular staircase: drawing

How to make a modular staircase

Having in hand finished project, you can go several ways. The first is to place an order for the stairs from the manufacturer according to the project. The second is to look in stores for all the components of a modular staircase and purchase them. The third is to make the modules yourself. Which one to choose is up to you to decide. The simplest and reliable way- this is to place an order from the manufacturer. As a result, you will be delivered a ready-made staircase, manufactured in compliance with all norms and rules; all that remains is to assemble it on site, and this does not require any special skills.

The first thing you have to do is install and secure to the floor the first module of the staircase, which is its base. To do this, measure the required distance from the walls and make notes.

Important! All dimensions and calculations must be in project documentation, prepared earlier.

Now, having placed the module in the right place, we make notes for the holes. Then we take a hammer drill and drill holes for fasteners. We install the base of the stairs in place and secure it. Further assembly work will consist of installing subsequent modules into each other.

Having installed the penultimate module, we check that all modules are installed correctly. This is necessary to maintain the geometry of the stringer and so that you do not have to redo the fastenings for the finishing module. If everything is in order, put the finishing module in place. After which, pressing him to interfloor covering or wall, we mark places for holes for fastening. We remove the finishing module, drill the holes, return the module to its place and secure it. Next, using locking screws, we fix all parts of the stringer.

Further work consists of installing flange plates on each module. There is nothing super complicated here. The plates have 8 holes, 4 of which are intended for fastening to the stringer modules. Simply attach the plate to the module and fasten it with 4 screws.

All that remains is to install the steps in place. For this first, if this wooden steps, put them in place. We center and mark the locations at the bottom for the holes for fasteners. Then we drill it with a drill 1 mm smaller in diameter, put it in place and screw it on.

Important! If the staircase design does not provide rigidity posts, then the steps must be secured additionally to the wall. Regular corners are suitable for this. They are installed under the step to the wall. First, we put them in place, mark and drill points for fasteners, and then secure them.

Finally, we install handrails and bolts. Their installation is carried out after the steps have been fixed. You will have to make through holes in the steps themselves, but after installing the railings and railings, the entire staircase structure will receive additional strength.

The installation steps described above are suitable for first generation stairs. The video demonstrating modular stairs shows how to install a second generation modular staircase. After watching this video, there will be no questions left about how to make a modular staircase with your own hands.

A modular staircase is a structure consisting of identical parts fastened together (modules with steps) attached to a central stringer. If desired, you can make such a staircase yourself.

Features, pros and cons

Peculiarities

A modular staircase usually has a semicircular shape. To accommodate such a structure you need quite a lot free space. However, this does not mean that the finished staircase will look too bulky. The design is neat and “airy”; the assembly features allow you to give the staircase almost any shape.

Before you get started, check out the benefits and weaknesses modular stairs.

Advantages

Flaws

Modular stairs are not without their drawbacks. First of all, the modular design is inferior to all-welded models in terms of its strength characteristics. All prefabricated connections will gradually become loose, so the owner will have to regularly monitor the quality of the structure and tighten the connections.

The second big disadvantage of modular stairs is the high cost of ready-made kits. However, here are instructions for your attention: self-assembly designs, therefore this disadvantage is not relevant. The main thing that starting materials were of the highest possible quality.

Before you start arranging the stairs, select suitable option modular type designs. There are these types of modular stairs:

• marching. Conventional straight designs with the simplest wide steps. Very easy to use and reliable, but rather bulky and non-compact;
• screw. Occupy minimal space, however, they are not as convenient in terms of use as flight stairs;
• rotating with platforms. They take up relatively little space and are quite comfortable. They have 2 or more flights with intermediate turning areas.

What you need to know about the stringer?

Regardless of the type of modular staircase you choose, you will have to become familiar with the main element of the design in question - the chain stringer.

The stringer is the main central component of the type of stairs under consideration. It is assembled from a number of assembled elements, the installation of which can be carried out directly or at some angle, which gives the owner the opportunity to create stairs of a wide variety of shapes.

The stringer is fastened to supporting modular elements at the top and bottom, thereby achieving the required rigidity and strength of the structure.

For additional rigidity, a support pipe is included in the structure every 100-150 linear centimeters.

If there is a strong concrete or staircase near the staircase location, brick wall, from use additional elements modular design you can refuse by fixing the stair steps directly to the wall.

Stair assembly options

There are several methods for assembling stair modules. Each of existing options is characterized by its strengths and weaknesses, which you need to know about before starting to independently assemble a modular staircase.

"Module to module"

The stringer can be assembled using the “module to module” method with additional fastening using plates and mounting screws. This is the first generation of such stairs with many disadvantages, including:

• strictly limited step pitch. This step cannot be adjusted;
• some curvature of the assembled structure. It is impossible to get rid of this defect even by tightening the screws;
• relatively low durability. Over time, the fastening plates begin to unbend on their own, which leads to sagging of the entire structure and causes additional inconvenience.

The only advantages of this option are high speed and extreme ease of assembly.

Threaded rods

This method involves the use of threaded rods during the assembly process. Such ladders do not have the disadvantages characteristic of the previous design, however, assembly with threaded rods is quite complex. The height of the steps still cannot be adjusted. Every 1-2 years you will need to tighten loose threaded connections, and this also causes a lot of trouble.

Based on the clamp principle

These are stairs of a new generation. Among the main advantages of this option, it is necessary to note the possibility of changing the length of the step and the distance between the elements. Modules and flanges can be deployed.

The load distribution on the fastening elements is organized using advanced technology - the connections do not become loose over time.

Each of the stairs discussed above can be assembled using bolts - these are elementary fasteners installed between individual steps and helping to increase the rigidity and reliability of the structure. Most often, bolts are used in the latest generation of stairs.

Important Notes

To ensure that your modular staircase lasts as long as possible without complaints, remember the following tips:

• vertical supports must be installed on pre-poured concrete platforms. They will serve as a foundation;
• the staircase can only be paired with a main wall with a thickness of 20-25 cm;
• When installing a modular staircase on a wooden floor, the logs must first be reinforced with cross bars.

Preparatory stage

On preparatory stage you have to perform a number of calculations and prepare the necessary drawings.

First step. Create a drawing of the room in which you plan to place the modular staircase. It is most convenient to make such drawings to scale on graph paper or in a special program.

Second step. Measure the height of the room. Draw a section of the room along the height near the previously drawn up room plan on a piece of paper. Mark the lines of the floor and ceiling of the room in the drawing.

Third step. Schematically draw a modular staircase. The steps will be fixed at a distance of about 15-16 cm. The drawing will help you determine the required number of steps. If the top step has an unacceptably small height, the “excess” must be evenly distributed over all steps of the staircase.

For example, the floor has a height of 280 cm. You make 15-centimeter steps. Simple calculations show that there will be not a whole number of steps, but, specifically in this case, 18.6 pieces. In this example, you need to make 18 steps, increasing the distance between individual steps to 15.5 cm.

Fourth step. Apply a horizontal projection stair steps to the room plan. The optimal width of a modular staircase is 100 cm. It is better to make steps about 30 cm wide.

Fifth step. Prepare a drawing of the modules for attaching the steps of the stairs. Each module must have the same dimensions and shape. If you plan to use ready-made modules, this drawing will not be needed.

Main stage

First step. Prepare the material for making the steps of a modular staircase. It is advisable to use solid wood. Optimal thickness boards - from 4-5 cm. Use screws and glue to connect boards. If you wish, you can purchase steps from finished form. At this point, focus on your personal preferences and the characteristics of your specific situation.

Second step. Prepare modules for attaching the steps. It is almost impossible to make round modules at home without the appropriate skills. Therefore, it is better to immediately order their production from a specialized company according to your calculations and drawings.

You can make square modules yourself. Use profile pipes for this. Pipes with walls with a thickness of 0.5 cm or more are suitable. Use bolts and welding to connect elements.

Third step. Prepare concrete platforms for installation of load-bearing supports. These supports should be immediately concreted into the platforms.

Fourth step. Slice suitable pipe for the required number of parts in accordance with previously prepared drawings.

Fifth step. Make holes in the prepared elements for bolted connection modules.

Sixth step. Assemble the entire structure, attaching the staircase modules to the supports in parallel.

Seventh step. Strengthen the system by creating some neat welds. At the same stage, weld the metal corner to the staircase modules if you want to create such a edging for the steps.

Eighth step. Paint the metal elements of the structure, having previously cleaned them of rust.

Ninth step. Install the steps.

Tenth step. Install fencing. It can be forged or wooden. Choose according to your taste.

At the end, all you have to do is once again verify the quality and reliability of all connections and test the assembled structure. At this point, the do-it-yourself modular staircase is ready. As you can see, there is nothing complicated in its assembly. Follow the instructions and everything will definitely work out.

Good luck!

Video - DIY modular staircase