How to calculate the material for building a house. The cost of building a house: features of the calculation of building materials - what can be calculated on the online calculator
To start building a house without first calculating what it will cost you, to put it mildly, is not serious. Only if you have a well-composed estimate, you will be able to organize all the work correctly, providing them with finances and materials in advance.
The calculation of the construction of a house should begin with a list of items of upcoming expenses:- About 20% of the total costs are for the foundation. Its price depends on the chosen design, material, site topography, volume construction works. Will pour out into the smallest amount columnar foundation, but it is not suitable for all buildings.
- A large part of the funds will go to the construction of walls. So, if they are made of brick or cinder block, then they will cost more, and if they are made of aerated concrete, they will be somewhat cheaper. Get real savings if you choose modular or frame house, because a strong foundation is not needed for it.
- The roof follows the walls. You have to choose between flat and pitched. If there is not enough money, then it is better to make it from slate. It turns out more expensive, but natural tiles, metal tiles, corrugated board look better.
- You can not do without joinery, i.e. doors and windows. It is necessary to allocate money for finishing - both internal and external. The need for money is directly dependent on the cost of materials. You don’t need to save a lot on them, otherwise it will turn out, as in that proverb about the miser who pays twice.
- The house will have to be heated, so it includes an estimate and heating, indicating its type.
- In the case of water supply and sewerage, another item of expenditure will appear.
- the name of the material, indicating the manufacturer or trade mark;
- estimated needs, taking into account consumption rates;
- the cost of the material at the moment;
- types of work where the materials will be used;
- unforeseen and unaccounted for work, but they will definitely arise.
Initial data
Step 1: The calculator is designed to calculate any kind of building blocks. First, set the exact dimensions of the building block, excluding the masonry seam. Be careful here: set the length, width and height of the block relative to how the block will lie in the masonry. Next, enter such building parameters as the height of the wall and the total length of the wall along the outer perimeter of the building.
Step 2: Then specify how the blocks are stacked. The thickness of future walls directly depends on these data. This can be a half-block construction (the wall thickness will be equal to the block width) or a whole block (the wall thickness will be equal to the block length). Choose the laying method depending on the designed number of storeys of the building, the type of floors and other structural features.
Step 3: To make the calculation more accurate, it is necessary to take into account the thickness of the masonry joint, consisting of mortar, or glue and other materials. Sometimes the thickness of the horizontal and vertical seams is different.
Step 4: To calculate the masonry mesh, you need to decide how many rows you will lay it in. Data about it can be omitted, leaving the item "Ignore" in the column. Or count it, indicating that it lies through the Nth number of rows.
Step 5: Block weight is an optional parameter. But if you want to calculate the approximate weight of the finished walls and the load from the walls on the foundation, then it is still desirable to indicate it. Price is also an optional parameter. Specify it if you want to calculate the total cost of the blocks.
Step 6: To take into account the gables of the building, as well as windows, doors and additional openings in the calculations, check the appropriate boxes, and set the necessary parameters in the list that appears.
Step 7: After filling in all the fields, click the "Calculate" button. You can print your results or send them by email.
For convenience, various elements buildings are best counted separately. For example, external walls and interior partitions may differ both in height and in the way the blocks are laid. In this case, carry out two independent calculations.
Interpretation of calculation results
Building perimeter | The sum of the lengths of all walls taken into account in the calculations |
Total masonry area | The area of the outer side of the walls. Equals the area of the required insulation, if it is included in the project |
wall thickness | The thickness of the folded wall, taking into account the mortar joint (s). Minor deviations from the final result are allowed depending on the laying method. |
Number of blocks | Total amount all blocks required for the construction of walls according to the specified parameters |
Total weight and volume of blocks | Net weight and volume of blocks (excluding mortar and masonry mesh). This data may be useful for choosing a delivery method. |
The amount of mortar for the entire masonry | The volume of mortar that will be required to lay all the blocks. Deviations in the indicator are allowed. Depends on the ratio of components and input additives |
Number of rows of blocks including seams | It is determined by the height of the walls, the dimensions of the materials used and the thickness of the masonry mortar. Fronts are not taken into account |
Optimal wall height | The recommended height of the block wall, which should generally be a multiple of the height of the block itself, including the joint. You can agree with this recommendation - then recalculate by setting a new wall height value in the calculator |
Number of masonry mesh | Required amount of masonry mesh in meters. It is used to reinforce masonry, increasing the solidity and overall strength of the structure. |
Approximate weight of finished walls | The weight of the finished walls, including all building blocks and masonry mortar, but excluding the weight of insulation and cladding | Load without taking into account the weight of the roof and floors. This value is needed to select the strength characteristics of the foundation |
Building a house is a responsible and complex process, the nuances of which are known only to professionals. But the cost of building a house is primarily influenced by the amount of building materials used and the size of the building, so it is possible to roughly estimate the cost of construction for the selected project using online calculators.
With the help of a calculator and a project of a house, you can imagine its approximate cost.
Types of house construction calculation
There are several types of calculations and a specific construction calculator is usually created for one of them. To understand what results to expect from calculations, you need to understand what type of calculation is used:
According to the total area of the house. A very approximate calculation method - you indicate the linear dimensions of the building, the estimated number of floors and the material for the walls, and the calculator gives an estimated cost.
By project type. A more complex calculation method, which is carried out in several stages - based on architectural, structural and engineering projects. It separately shows the cost of building a "box", finishing work and the price of wiring engineering communications. The accuracy of calculations depends on the number of templates included in the calculator.
Foundation calculators. They allow you to roughly imagine the amount of building materials (concrete, reinforcement, formwork boards) that will be required for the work. The accuracy of the calculations also depends on the number of templates included in the calculator.
Foundation online calculator interface
Universal calculators that allow you to include in the calculations the types of floors and the material from which they are made (blocks, bricks, wooden beams, or even). In some cases, you can even count houses designed for fachwerk technology.
Depending on the templates and formulas included in the construction calculator for calculating the templates, as a result you get a calculation of the cost of building a house as a whole, or part of the work, so that you can choose the best option.
In what cases and how is a construction calculator used
To properly use the online construction calculator, you need to clearly understand its pros and cons for yourself. At the same time, first of all, it is necessary to focus on the shortcomings:
Lack of flexibility. Any calculator makes calculations solely on the basis of its templates and formulas. If you need to calculate data for which the calculator is not provided, then you will not be able to reconfigure it and you will have to do everything manually.
Low "transparency" of calculations. Even if the calculator contains exact formulas, the user has no way to check what exactly and how correctly he thinks, since everything is hidden behind user interfaces designed exclusively for entering primary data.
Behind the user interface, the formulas by which the calculations are performed are not visible - only the initial data and the result
Despite such significant disadvantages, various construction calculators are still very popular - this is due to such positive points:
According to the initial data required by the calculator, one can still imagine the course of calculations and what to look for when choosing a project or communicating with specialists who will perform the work.
Based on the results issued by the calculator, you can compare the cost of work with different materials or compare the price of houses built using different technologies.
As a result, the main task of the construction calculator is to clearly show the user how approximate calculations are made and what is the difference in the cost of houses built using different technologies.
At the same time, it is not recommended to use a building materials calculator for building a house for any accurate calculations, since it is often unknown by what formulas and with what tolerances calculations are made.
What do construction calculators consider
In order to carry out the most correct calculation of the main building materials for the construction of a building, it is necessary to determine in advance the design of the house to be built. When the configuration of the future cottage is known, then this data can be used for an online calculator to calculate the amount of materials needed.
Example finished project wooden house
Calculation of materials for the foundation
The foundation accounts for about a third of all construction costs. The arrangement of the foundation is one of the first stages of work and calculations usually begin with it. To calculate the number of building materials, it is proposed to select or manually set the following data:
type of foundation - tape or pile-grillage (completely pile foundation it is impossible to calculate online, as there are too many variables to take into account);
the shape of the foundation is usually rectangular or with additional load-bearing walls;
linear dimensions - depending on the accuracy of the calculator;
mortar proportions - brand of concrete;
thickness, and in some cases the desired length of formwork boards;
reinforcement type.
After calculations, the calculator gives the volume of future pouring, the amount of reinforcement and wire for knitting, the cubic capacity of formwork boards
Clearly emerging nuances of the calculation can be seen in the example of calculating the amount of mortar for pouring a strip foundation measuring 5x6 m under a small country house with two rooms.
Strip foundation- a concrete base laid along the perimeter of the frame of the house under all its load-bearing walls and transferring the load from the cottage to the ground.
Strip foundation
On our website you can find contacts construction companies, which offer the service of designing houses. You can directly communicate with representatives by visiting the exhibition of houses "Low-Rise Country".
When calculating the pour volume, the width of the base (for example, 40 cm) is multiplied by its depth (50 cm). The resulting cross-sectional area is multiplied by the length of the walls (3 by 5 m and 2 by 6 m).
The simplest calculation could look like this: 0.4x0.5x ((6x2) + 5x3)) \u003d 0.4x0.5x27 \u003d 5.4 cubic meters. m solution.
But here there is one nuance that must be taken into account - when the sides of 6 m are filled with concrete, then part of the wall volume of 5 m is “captured”. If you do not pay attention to this moment, you can order more concrete than necessary. In fact, the calculation will be as follows 0.4x0.5x ((6x2) + (4.2x3)) \u003d 0.4x0.5x24.6 \u003d 4.92 cubic meters. m solution.
Correct calculation of the volume of the strip foundation
As you can see, even on a small foundation, the difference is noticeable - an error per half a cube of solution, which is 1.5-2 thousand rubles ...
The nuances of calculating the consumption of bricks and blocks for walls
Since bricks and building blocks have a rectangular shape, the calculation of building a house is performed with approximately the same initial data, so most wall calculators can be used for each of these materials.
To count the number of blocks or bricks, the online construction calculator will request the following data:
the total length of all walls of the house (perimeter, m);
area of door and window openings;
the thickness of the walls of the building (the thickness can be half a block, as well as 1, 1.5 or 2-2.5 blocks);
Masonry width in 2 bricks
weight and price of one block (kg and rub.);
the thickness of the mortar in the masonry (cm) - usually this indicator is in the range from 3 to 10 mm;
the height of the walls in the corners (cm);
the type and size of future blocks: length, width and height (mm), and some calculators allow you to take into account the voids of the blocks, which is used in a number of calculations.
Building block parameters
Important! In some calculators, the thickness of the masonry joint is not indicated separately. This means that either it is not taken into account at all, or the “format” rule applies, in which the dimensions of a building material unit are increased by 1 cm (by the standard seam thickness).
Based on all these indicators, the total area, mass and cost of masonry is calculated. Approximately the cost of building block (brick) walls will be 1/3 of the cost of building the entire house.
Video description
The video shows an example of manually calculating the number of bricks:
What is pre-calculated during the construction of frame houses
The frame-type house construction calculator allows you to pre-calculate the approximate amount of materials even before contacting the specialists of the selected construction company.
To draw up an estimate, the following parameters are calculated:
foundation (for the construction of conventional frame houses a pile foundation is excellent, and in the case of unstable soil or for a heavier cottage, a strip or slab foundation);
quantity required material for insulation - is calculated depending on local climatic features;
roof dimensions - there is a significant difference between a conventional roof and an attic house;
parameters of engineering networks and other communications - not a single calculator can provide all the nuances;
the amount of wind and vapor barrier materials;
exterior and interior decoration of the future building - depending on the selected materials.
For a competent choice of foundation and type of roof, it is necessary to perform a detailed calculation of the specific gravity of walls, ceilings and roofs. Depending on the size of the sheathing material, the dimensions of the building and the roof structure, the builders select a transverse or rack beam for the load-bearing structure of the house.
the basis of any frame house makes up the upper and lower strapping, which also need to be calculated - both in terms of strength and in terms of the volume of building materials used. The cross-sectional area of \u200b\u200bthe beam is usually taken as the basis here.
Video description
An approximate calculation of materials will help to produce an online calculator, as presented in the following video:
Calculation of the amount of finishing materials
To calculate the construction of a house, it is important to determine the amount of finishing material for the walls. One of the most common materials is various types of lining, on the example of which you can consider the nuances of calculations.
The first parameter that affects the price is the type of lining (wooden or plastic), which determines its dimensions.
Wooden lining is a natural material that is durable and has a long service life. The only drawback of this building material is its high susceptibility to the moisture content in the air, because of which it is necessary to include various impregnations, varnishes or paints in the estimate. The dimensions of the lining vary in the following ranges: length - from 210 cm to 600 cm; width - 8, 10, 11, 12, 15 cm; thickness: 1.3cm, 1.6cm, 1.9cm, 2.5cm.
Plastic lining is characterized by an increased service life and absolute moisture resistance, which makes it excellent for finishing the exterior surfaces of the house. For this type of lining, the dimensions will be as follows: length - from 300 cm to 600 cm; width - 10, 12.5 or 15, 20, 25 cm; thickness: 5, 7, 8, 10 mm.
Calculation of the amount of lining on the online calculator
To calculate the required amount of lining, the following data are used:
number of windows, their height and width;
number of doors and their dimensions;
the perimeter of the building and the height of the walls.
Knowing the area of the facades of the building and the area of \u200b\u200ba unit of facing material, you can calculate the amount of lining or other type of siding by dividing the first by the second. The same thing happens when calculating the floor coverings inside the house.
A similar building materials calculator will also help you calculate the number of specific elements, for example, cornices, planks (starting or finishing), spotlights, platbands, and more.
Also when calculating finishing materials for interior work, the volumes and quantities of paint or wallpaper, flooring and plaster are taken into account.
Video description
Video example of calculating the amount of linoleum needed:
The consumption of many of them (for example, primers or paints) is indicated on the label by the manufacturers. Therefore, it is only necessary to know the coverage area (height times width minus the area of windows or doors).
Universal online calculators
To determine the approximate cost of the entire construction, a universal, easy-to-use construction calculator is used. Such a program is designed to perform a preliminary calculation of the price of a house, taking into account the main parameters.
Online calculator for calculating building materials
Choosing a certain technology of construction on construction calculator, you can quickly compare the cost of building a building in different configurations.
When calculating the cost of construction on the online calculator, the following indicators are taken into account:
foundation type;
house area;
number of storeys;
roof type;
type of floors (material used for their construction);
types of building and finishing materials.
IN universal calculators it is possible to enter the dimensions of the building (height, width and length), as well as window and door openings, certain dimensions of each of the rooms, the depth and width of the foundation, the angle of the roof and the type of heating.
An example of an online calculator for calculating the cost of a turnkey house
For example: building an economy option ( one-storey cottage up to 80 sq. m) can cost 1 million rubles or more. Basic two-storey houses area from 150 sq. m, will cost at least 2 million rubles. highest price will have the construction of large and spacious premium mansions with total area over 350 sq. m - from 5 million rubles.
Conclusion
The main purpose of using an online calculator is to save time. The program makes it possible to calculate the approximate cost of building a house quickly and easily. However, it should be noted that such software implies a significant error in the calculations. Accordingly, accurate results can only be obtained in a specialized company.
Using an online calculator, it is easier to decide on a suitable project for your future home. The process of calculating the cost of a house is not affected by the human factor, and the application itself is often free and available to everyone. And yet, in order to minimize errors in calculations, it is recommended to contact specialized companies with experienced craftsmen.
Before starting construction work, it is necessary to determine the amount of materials used. We are talking about a brick, of course, it will not be possible to calculate the exact quantitative value up to one piece, but you will get an approximate volume figure from which you can start.
Design data for construction
Why is it necessary to pre-calculate the number of brick products? It will help to determine the volume and not to buy too much. And for high-quality construction, it is desirable to use blocks from the same batch, because products from different purchases may differ in shades that are obtained with different clay consistency during production. Shades that are different from each other will significantly worsen the appearance.
Required parameters for calculation actions
- For the perimeter, you will need the size of the walls.
- Structure height.
- The type of building material used: single, one and a half or double brick monolith.
- Type of layout to be used for construction.
- Seam thickness. For horizontal, the standard is 12mm, and for vertical - 10mm.
brickwork scheme photo
Depending on the type of monolith and laying, it is possible to compile a table with average building material consumption rates per 1 square meter. These tabular indicators can be used for many ways of laying patterns.
view of the layout in the width of the clinker | used brick product | number of units, taking into account the width of the seams | number of units excluding seams |
two and a half | 250x120x65 | 1 5 5 | 3 1 7 |
250x120x88 | 1 9 5 | 2 3 5 | |
250x120x138 | 1 3 0 | 1 5 0 | |
two | 250x120x65 | 2 0 4 | 2 5 6 |
250x120x88 | 1 5 6 | 1 9 0 | |
250x120x138 | 10 4 | 1 2 0 | |
one and a half | 250x120x65 | 1 5 3 | 1 8 9 |
250x120x88 | 1 1 7 | 1 4 0 | |
250x120x138 | 7 8 | 9 0 | |
single | 250x120x65 | 1 0 2 | 1 2 8 |
250x120x88 | 7 8 | 9 5 | |
250x120x138 | 5 2 | 6 0 | |
half | 250x120x65 | 5 1 | 6 1 |
250x120x88 | 3 9 | 4 5 | |
250x120x138 | 2 6 | 3 0 |
Varieties of layout affect the width of the wall layer. It will depend on how the laying work will be done:
- with a half layout option, the width will be in millimeters - 120;
- for laying in 1 product, it will increase to 250;
- at 1.5, respectively, 380;
- for 2.0 the thickness will be 510;
- with a variant of 2.5, the interlayer is represented as 640;
Calculation sequence
- Calculate the perimeter of the building. To do this, we summarize the lengths of the outer wall surfaces.
- We determine the area. Multiply the sum of the walls by the height of the room.
- According to the list above, we determine the number per 1 m², knowing the dimensions of the clinker for construction and the width of the wall layer.
- We multiply the found value by the area of \u200b\u200bthe building, and we get the required amount for the entire structure. The resulting figure in the process of calculations is rounded up to a larger one.
Calculation example
Material calculation table
Our future building according to the project has walls of 12 m, 10 m, 12 m, 10 m. The height of the building is 3 m. Laying is done in 1.5 bricks, one and a half blocks are taken for these works.
- We determine the sum of the lengths, it is equal to 12+10+12+10=42 m.
- We calculate the area 42 * 3 = 126 m².
- According to the table, we select the value, taking into account seam joints for laying 1.5 bricks, it is equal to 117.
- We calculate the number of bricks 126*117=14742 pcs.
For the given parameters of the building, we need 14750 pieces of building material.
IMPORTANT! Do not forget that up to 7% of the purchased product will be defective, in connection with this, the quantity must be purchased taking into account this amendment.
Of course, you can calculate the necessary building materials using calculators that you will be offered on many construction sites. But as you can see, an independent option will not be difficult. And you can use the online assistant to check your own output result.
More on the topic:
Every time a construction project is started, one has to calculate the financial costs, regardless of whether a house is being built with one's own hands, with the help of neighbors or by professional builders. Significant differences will be in the timing, quality of work performed, but most importantly - in the price of the entire event.
You can reduce risks and get a high-quality result by attracting a certified professional contractor. The preliminary cost of building a house can be calculated using an online construction calculator.
Methods of calculation for the performance of construction work
Calculations can be made in three ways:
- Measurements on the design area.
- Building area calculations.
- Definition by construction volumes.
The first two methods at the output give an overestimated estimate figure. It includes additional costs for the alleged overrun of the material, the allowable rise in the cost of its cost. The possibility of additional unforeseen expenses is taken into account.
The third approach (calculation by real volumes) is more accurate and objective. It takes into account the work that will be directly carried out. The volume of completion for each segment of the construction is considered. Therefore, at the stage of drawing up an estimate, the customer has the opportunity, without violating the project, to make his wishes for individual structures (for example, for ceilings, roofing). Deviations from the total cost are possible within 15%.
According to the last principle, unlike many other resources, a unique mathematical calculator for calculating the construction of a house from the website works.
Algorithms for calculating the online calculator for building a house
The calculation is based on simple mathematics. First, to determine the volume, you need to set the value of the width, length and height (thickness) of a certain structure.
Secondly, building codes and regulations that apply to specific structures selected for the project are taken into account.
Thirdly, the actual price of the materials used, the tools used, the equipment involved, and the labor of specialists are taken into account. It is important that the price Construction Materials We have a stable, no sharp jumps. This is possible due to the presence of its own warehouse-shop with materials.
Fourthly, the calculations are based on existing and approved drawings. Therefore, when designing a house on our building calculator, you get a result that is associated with real projects. The constant practice of contract work allows us to take into account all, even small, current costs. That is why the construction cost calculations on this online calculator are more accurate than on similar services.
Fifthly, the reliability of the result is ensured by adding up individual calculations for each segment of the construction:
- laying the foundation;
- erection of walls and ceilings;
- roofing work with the arrangement of the chimney;
- installation of stairs, windows, doors;
- facade design.
In addition, you can use our calculator to calculate the cost of building or repairing individual structures of your home.
Features of the formation of the price of work for different elements of the structure
Foundation
Before starting the calculations, you need to decide on the type of its design. In the settings of our calculator, the following foundation options are provided:
- tape on piles;
- tiled monolith;
- monolith with plinth;
- with basement.
The design is selected taking into account the mass of the designed structure and the characteristics of the soil geology at the site.
Next, for calculations, you need to specify the dimensions of the desired building (width, length) and the thickness of the foundation. We get three figures: the price of the work, the cost of materials, the final cost. This result will appear at each stage.
The scheme is similar. We choose which walls we will build, and the height of the floor. We suggest paying attention to:
- cellular concrete blocks;
- ceramic brick walls;
- porous ceramic blocks.
It is worth knowing that the calculator will consider building a house from blocks a little more expensive than in the case of brickwork. But we advise you to initially choose the material according to the characteristics, and not the price.
Overlappings
The construction of floors is of particular interest for its ability to combine various options. The online construction calculator offers to separately select floors for the basement and floor. Also, the difference in design is presented to your attention:
- beams wooden or glued;
- concrete slabs or monolith.
In your choice, it is important to proceed from general requirements to the building under construction and financial opportunities. With proper selection of floors, you can even save. For example, it is better to use concrete between the basement and the first floor. The house will be better protected from moisture coming from below, and the floors will withstand a lot of weight. At the heart of the attic floor, you can use wood, which is less durable than concrete, but cheaper. It will also improve thermal insulation.
If you are as safe as possible in terms of fire safety, it is better to turn to concrete partitions. However, it is important to take into account the capabilities of load-bearing structures (foundation, walls) in terms of withstanding a significant load.
Roof and chimney
The difference in their assortment lies only in price and aesthetics. The elements fully perform their functions, regardless of the price. Pay attention to the following types of tiles:
- natural;
- composite;
- bituminous (soft);
- metal.
The latter option is characterized by the greatest prevalence in modern construction. The chimney can be chosen from brick, ceramic or stainless steel.
Ladder
The staircase is one of the elements of the house that cannot be defined in terms of volume. An online calculator for calculating the construction of a house determines the price of stairs based on the material of manufacture and the number of floors. They can be wooden, metal, monolithic (made of reinforced concrete).
Windows, doors
A unique feature of the home construction calculator from the site is the accounting of the areas allocated for window and door openings. When you specify the number of windows and doors, the total cost of building a house according to the calculator will be lower due to a decrease in the calculated volumes of wall materials.
Exterior finish needed not only for the exterior, but also for its heat and sound insulation of the building. An online calculator for determining the cost of building a house shows options for facade design using:
- clinker tiles;
- facing brick;
- "wet facade" technologies;
- ordinary plaster.
The latter option is cheaper, but the plaster must be applied to walls that, due to their thickness, provide thermal protection.
Using the construction calculator on the site will help you not only present the cost of the work, but also develop a preliminary detailed design of an aerated concrete house. The accuracy of the calculations is guaranteed by the combination of theoretical calculations with real experience implementation of many construction projects.