Local estimate calculations (estimates). Estimate for construction work House made of timber

The estimate for the construction of a house is the main document that should be prepared before the construction of the facility. Its presence allows you to accurately plan expenses and decide on the purchase of suitable materials. The downside is that construction organizations often give an approximate amount, because it is difficult to predict the costs when building a wooden, frame, or brick house. There are many nuances that affect the final cost of construction. That is why large companies have entire departments dedicated to preparing estimates. If the company does not provide such a service, you have to contact special companies. Below we will consider what the essence of the estimate is, how to draw it up and provide a sample for a general understanding of the process.

The term “estimate” in relation to the construction of a house is a special document, without which no contractor begins work. When constructing a building, the biggest costs are construction materials and labor costs for construction workers. That's why all the nuances are taken into account in the process of calculating the price:

Scope of work performed.
Technologies used.
The period of construction of a house made of brick, foam block, aerated concrete or other material.
The number of workers who are involved in the process.
Project investment options and so on.

Having an estimate allows the owner to control the progress of construction work and the costs of constructing the facility. As a result, it is possible to create a schedule of activities and force builders to strictly adhere to the established plan. Often, when construction begins, owners play it safe and submit applications for estimates to several companies at once. However, the difference in the final price can be quite significant.

The reason for the difference in the final indicators is different prices from material suppliers, the individual cost of performing work for each company, and so on. Comparing estimate documentation obtained from different companies allows you to roughly estimate the costs of building a facility and take adequate measures to reduce costs.

How to draw up a construction estimate correctly?

During the calculation process, many costs are missed and not taken into account by customers. As a result, the final price turns out to be higher than the stated price. For example, the bureaucratic component leads to an additional 15-20 percent of costs. Transport costs may seem insignificant, but in reality they also amount to 5-10% of the planned budget.

When preparing estimate documentation, you should know the following:

The calculation is carried out taking into account all document positions.
If another company is involved in the calculation, the obtained parameters must be checked and adjusted to take into account current realities.
Construction estimates should be coordinated with experts in this field.

In addition to minor expenses, a certain amount of funds should be planned for unforeseen expenses. They are allocated up to 2-4% of the total amount in the estimate. In this case, the real amount reaches 4-5%.

Estimate documentation is the main element in construction, therefore its preparation is carried out according to special rules. Many of them work and remain unchanged since the times of the USSR. For example, previously estimates were drawn up by organizations that were involved in the development of project documents. The organization took 10% for creating the project and another 1% for the estimate documentation.

Today, calculation processes are automated, special programs appear, and companies have ready-made examples before their eyes. All that remains is to insert the required parameters and give the command to perform the calculations. Despite the availability of software, difficulties arise in another aspect - the range of materials has increased, the number of suppliers and construction companies has grown. Overpayment or savings on estimate documentation depends on the qualifications of the employees who took on this work. At the same time, you should not save much on materials, because this leads to a loss of quality.

Types of estimates

In accounting, calculating estimates before construction begins is not always possible. This is due to the regular increase in prices for raw materials, materials, people’s work and the tools used. You also cannot take into account the likelihood of force majeure, due to which the cost of work will be much higher. For this reason, until the advent of accurate calculations, it is worth using estimate calculations, on the basis of which object calculations are created. The latter are amended as necessary. The preparation of estimates is carried out using estimate standards, which are available in special documentation.

Local - estimates that determine the estimated price of the structure being built. Such a document applies to all types of work and expenses. It is possible to draw up an estimate for an object as a whole or a category of work - building a foundation, erecting a roof, and so on.

Object estimate is a paper that contains information about the structure being repaired or constructed. Information is taken from the local estimate.

Consolidated estimate documentation - papers that are drawn up on the basis of object estimates for specific types of expenses.

Compilation methods

There are several calculation methods. To make the right choice, you should know the features of each of them:

Labor-intensive method. This technique is used for structures with small dimensions. The construction company announces to the client the final costs that await him in the event of an order. In addition, problems with the delivery of materials are resolved directly by the contractor. With this method, no contract is drawn up, and the contractor does not guarantee anything. As a result, the estimate documentation contains “pitfalls” that are almost impossible to notice without a detailed study.
Universal method. With this technique, the document includes a section in which the main works are listed by stages. With the help of such documents, it is easier to keep control over the construction process and costs. In addition, the customer has information on the cost of the materials used, as well as cost data. With the help of estimate documentation, it is possible to keep costs under control. For example, the structure of overhead costs includes employee wages, tax payments and additional expenses.
Detailed estimate documentation. By the name of the method it is easy to judge its features. Drawing up such an estimate is necessary when carrying out construction work. In addition, a detailed statement of the estimate for the construction of the facility shows the customer the real state of affairs and the current cost of construction materials (tools, work). Understanding the documentation is not difficult even for a customer uninitiated in the intricacies of its preparation.

Components of the estimate

As noted earlier, when drawing up estimates, many components are taken into account - the type of contractor, the type of activities performed, the characteristics of the work, as well as other aspects of the activity. That is why each estimate prepared by different companies has significant differences, and the final parameters will differ for the construction of different types of buildings.

In addition, the estimate documentation drawn up during the construction of a facility for your own needs will differ from that prepared by contracting companies. In the latter case, a number of elements are overlooked. If you decide to draw up an estimate yourself, you should understand its composition and adhere to the structure:

General information about the document. This information is located on the title (first) page of the documentation. As a rule, they contain information about the contractor and the customer, as well as the name and date of preparation. In addition, details are indicated that would confirm the approval of the estimate documentation.
Construction section. Here the information is grouped according to specific topics, which makes the papers easy to understand and interpret. Sections can have different names - “Finishing”, “Repair” and so on.
List of materials. When filling out this section, the resource methodology discussed above is used, as well as a system of indices for the performance of construction work (used in construction). For each position, personal information is presented - serial number, resource code in the directory, and so on. Estimate documents for an object are papers that contain information about the object being constructed (restored). Data is taken from local calculations and papers. The required number of materials, cost (for each specific unit) and total price are also given here.
List of works according to construction estimates. In this section, for each item, the serial number, code, name and unit of measurement, the number and labor costs of workers and drivers, the number of man-hours, the average category of workers involved, tariffs, wages, and so on are indicated.
A list of mechanisms, transport and devices that are necessary to perform the work, taking into account the current construction estimate. For each of the positions, the following information is indicated - serial number, code, name of the vehicle (device, mechanism), measurement unit, number of units for operation, required number of equipment to perform the work, cost of the position, and so on.
Total costs according to estimate documentation. A separate column indicates the size of the salary fund, the price of the materials used and the costs of using mechanisms and devices.
Various coefficients, allowances, discounts, overhead costs, as well as other parameters that are calculated as a certain percentage of the total amount for the estimate.
The VAT amount is a parameter that is calculated from the final parameters of the estimate documentation, taking into account additional information.

The estimate also indicates the total amount of the estimate, the full name and signature of the compiler and the inspecting party. These sections are usually sufficient to obtain the total costs of construction work.

How is the construction estimate calculated?

House made of timber

In order to properly invest money in the construction of a house made of timber, it is important to determine the quality of the materials used, the costs of transport and installation. When calculating costs, it is worth taking into account the type of structures used, the cost of a unit of production, the number of required objects, and the total price of the entire volume of materials. In addition, transportation and loader costs are added to this amount.

Timber is used as the main material. When drawing up an estimate, it is important to calculate the volume of required timber, which is sold per cubic meter. meters. It is at this stage that difficulties arise. To deal with them, you should know the perimeter of the object (indicated in the technical documentation), and then multiply the resulting parameter by the height. The final number is then multiplied by the cross-sectional area. The total volume is obtained in cubic meters - this material is enough to construct the object. Next, it remains to include the number in the estimate, taking into account the market price.

An equally important stage is calculating the costs of roofing, finishing and foundation. It’s worth starting from the foundation of the building. To solve the problem, multiply the perimeter by the thickness and height of the base. As a result, volume data remains on hand. Once the calculation is completed, it remains to find out the market price of one cubic meter of concrete, and then multiply the resulting parameter by the existing value.

Calculating the roofing material is easy. Take the roof area from the project, then multiply the parameter by the cost per square meter of the selected material. It is more difficult to calculate the costs of finishing, because different types of materials are used here. When calculating, the cost of the wall is multiplied by the price per square meter of each material separately. After completing the calculations, all that remains is to combine the costs and summarize the results.

Estimate for the construction of a frame building

Calculation of costs during the construction of a frame building occurs according to the same principle as discussed above. The difference lies in the material used. To perform calculations, it is worth having information on the shape and size of the structure at hand. It is also worth considering the costs of roofing, finishing and installation of the foundation. The estimate includes transportation and loading costs. An important point is the allocation of a certain percentage of costs for force majeure. These points are sufficient when drawing up an estimate for the construction of a frame building.

Foam block house

To accurately calculate the estimate, it is worth determining the material that will be used during construction work. There are three types of blocks for construction - foam concrete, aerated concrete or expanded clay concrete. The best solution for today is the use of aerated concrete (including from a price point of view). If a house is being built with an area of 300 square meters or more, then the total price of aerated concrete will be from 30 thousand rubles.

Sample

To make it easier to draw up estimates for construction, it is important to have a ready-made sample document before your eyes.

There is hardly a family who would not dream of living in their own house somewhere near the city. The cost of such housing can sometimes be quite comparable to the prices of city apartments, and the advantages of owning your own plot of land are obvious. Therefore, more and more families are thinking about leaving the city and building a home in its surroundings.

However, in our unstable times, building a private house is perceived by many as a very risky undertaking. What if prices for everything increase dramatically, or additional costs arise during the construction process? Is it even possible to stick to a pre-set budget? If you approach the construction budget wisely, then everything may not be so scary.

Drawing up estimates will become a much simpler process if you entrust this task to professionals.

Estimate for building a house. What it is?

The construction estimate is a preliminary calculation of all costs. Usually the estimate is a simple table that takes into account the main cost items:

Cost of materials
Cost of work
Cost of delivery
Overheads

Here is an example of what a standard cost estimate table looks like:

As you can see, the basis of the estimate is simple mathematics: the cost of one unit of material must be multiplied by the required quantity, and we will get the total cost. The difficulty lies not in the calculations themselves, but in including in this table everything that is needed to obtain an accurate picture.

The meaning of the estimate is to calculate in detail how much money will have to be spent at different stages of construction. The ultimate success largely depends on this. If you neglect calculations and estimate costs “by eye,” money will most likely slip through your fingers, the process will drag on, and the budget will grow uncontrollably.

If you are working with a contractor company that controls the construction process itself, then it must draw up an estimate and show it to you personally. It is expensive, and you can easily be deceived by slightly inflating the prices for materials or work. Many people decide to deal with all issues themselves and hire only teams to perform specific work.

In this case, you will have to draw up an estimate yourself. There are many companies that do this professionally, but it is quite possible to save money on this if you take a serious and thoughtful approach to drawing up estimates.

Drawing up an estimate. Algorithm of actions.

If you don't know where to start when creating an estimate, it is useful to have a rough sequence of actions to follow. Drawing up an estimate for construction can be divided into several stages.

1. Drawing up a work plan.

At this stage, your task is to determine the sequence of all the work that will be performed during construction from start to finish. This will help you navigate the construction process. In this case, it is necessary to indicate the timing and duration of the work, and also include technological breaks in the plan, for example, for hardening of concrete floors or screeds.

Such planning is very important, it will help not delay construction. The plan can also indicate in advance what work you will do on your own, where relatives will help you, and where you will hire a team or special equipment. These construction stages can then be reflected in the estimate, or estimates can be drawn up separately for each stage.

The main points of such a plan usually look like this:

Laying the foundation
Construction of a box: walls and ceilings
Roof and chimney
Installation of stairs, windows, doors
Summing up communications
External and internal finishing

2. Calculation of volumes of materials and structures

Which materials and structures to use and how much depends mainly on your project. Thus, you should start drawing up an estimate only if you already have a ready-made house project that you are completely satisfied with.

Then, having the exact parameters of your future home, taking into account technology and building codes, you can calculate the approximate volume of material used at each stage of construction for each type of work. This will take quite a lot of time, but this is the basis of the estimate, so the calculation must be done as thoroughly as possible.

For this purpose, there are so-called construction calculators - online services or programs that automatically calculate the amount of materials based on the parameters of the house. You can also find statistical data on this topic on various construction forums on the Internet.

If your project is typical, then such a calculation will not be difficult at all, since most likely, data on materials and structures are already available for it.

3. Price analysis.

Once you have decided on the volumes, the next logical step is to find out the current prices for materials and work. This will not cause you much difficulty. All you need is to make a small list that will include the main companies on the market of building materials and services in your city, and monitor their price offers. You can call them and ask them to send you the current price list or find it on the official website.

You can enter average or maximum prices into the estimate. You will probably change suppliers as you work, so having an idea of the average prices in the market will be extremely useful for you. It is better to conduct such an analysis approximately once a month and adjust the indicators as construction progresses to take into account price fluctuations. Don't forget about shipping costs.

4. Table and calculation.

When all the initial data is ready, you can enter it into the table and count it. It is important to note: the figures obtained will only be intermediate results. Anyone who has been involved in construction knows that the estimate will change in any case and, as a rule, upward. There are always factors that affect costs: defective materials, errors in work, force majeure, and so on.

An example of calculating an estimate for the construction of a private house with a total area of 323 m2

Name of works	Unit	Quantity	Unit price, rubles	Total cost, rubles
Foundation work
Axle alignment, leveling, development and excavation
Construction of foundations made of sand and crushed stone
Construction of strip reinforced concrete foundations
Construction of retaining walls made of concrete blocks, bricks, plinth

Waterproofing horizontal and lateral
Loading and transporting soil by dump trucks
Other works	Complex

Materials used
Concrete is heavy
Crushed granite, sand
Concrete block, ordinary clay brick
Gidroizol, bitumen mastic
Reinforcement, formwork panels and other materials	complex

Walls, partitions, ceilings, roofing
Preparatory work, installation and dismantling of scaffolding	complex
Laying external walls from blocks
Wall cladding with facing bricks
Installation of reinforced concrete belts and lintels in the formwork
Installation of brick partitions
Installation of reinforced concrete slabs
Assembling roof elements with sheathing device
Insulation of walls and ceilings with insulation
Hydro- and vapor barrier device
Roofing and drainage system installation
Installation of door and window blocks
Other works	complex

Materials used
Cellular concrete block
Concrete is heavy
Ceramic building brick
Ceramic facing brick
Heavy masonry mortar
Rolled steel, large-grade steel, fittings	complex
Edged lumber
Steam, wind and waterproof films
Rockwool insulation
Ceramic tiles, additional elements
Drainage system	complex
Window units with double glazed windows	complex
Other materials	complex

Engineering systems
Fireplace design	complex
Electrical and plumbing work	complex

Materials used
Gas boiler (Germany)	complex
Plumbing and electrical installation equipment	complex

Finishing work
Cladding of walls and ceilings with gypsum plasterboard	complex
Installation of inlaid parquet flooring	complex
Installation of ceramic tile coverings, wall cladding	complex
Installation, carpentry, plastering and painting works	complex

Materials used
Ceramic tiles, parquet, stairs, door blocks, decorative elements. wallpaper, varnishes, paints, dry mixtures and other materials	complex

Total construction cost
Cost per square meter

In order to make calculations more accurately, it is advisable to select a multiplying factor that will take into account unforeseen expenses. You can choose the value of this coefficient at your discretion, taking into account your finances. This way you can, if not completely avoid an increase in the estimate, then at least minimize it.

If you have thought through everything and drawn up a detailed estimate, most likely you will stay within budget, and if there are deviations, they will not be critical. It is important to calculate the full estimate before starting work in order to decide whether it is worth starting at all.

Remember that if you lack funds, you can postpone some work until the future, when money becomes available. For example, if the box is ready and the heating circuit is closed, some people are already moving into the house and gradually finishing everything else.

The construction of a house or building begins with calculations and drawing up an estimate, taking into account the materials used, the work performed and the cost of renting special equipment. That is why in construction it is customary to use estimates that clearly reflect the financial costs of constructing a specific object. The estimate applies to all types of buildings. In this article we will tell you what a house estimate is and how it can be calculated, as well as how much it costs to calculate an estimate.

Composition of the construction estimate

An estimate for the construction of a house is the main document for specialists; without it, not a single developer will carry out the construction of a building. The main financial costs fall on the purchase of building materials and additional elements for them. When calculating estimates, you should take into account such parameters as:

volume of planned work;
technology used;
construction time;
number of specialists on the project;
volume and terms of financing of the facility.

These criteria will allow the customer to monitor the timing of the construction process and check certain types of work. The main task that the estimate for building a house solves is:

adherence to a clear work schedule;
amount of financing during the period of work.

To perform calculations, the customer can submit applications to several companies at once; to do this, it is necessary to conclude an agreement for the preparation of the document. As a result, a house estimate compiled by different specialists will differ in the final cost, this is due to the fact that each company contributes its suppliers of materials and specialists performing the work. After reviewing several documents, you can compare and choose for yourself the most optimal option in terms of money and without compromising the future design.

Be sure to include minor or unexpected expenses at 15% of the total cost of the property. This may include transportation costs, payment for obtaining various certificates related to construction.

Acquisition of land and performing calculations

Construction costs, as a rule, begin with the inclusion of the cost of the land plot in the expenditure part of the document. Land is acquired in several ways that do not contradict the law:

purchase of a plot from the previous owner;
redemption from state property;
obtain a plot of land free of charge, subject to the availability of free land.

When purchasing a plot of land, be sure to draw up an agreement; this document will help you avoid fraudulent transactions and protect you legally. The contract must contain:

subject of the agreement: purpose of the site, its category and total area;
the price of the plot agreed upon by the sellers and the buyer.
When the transaction has already been completed, state registration of the transfer of ownership rights is carried out. For this, the following documents are submitted to the justice system:
application-registration;
receipt of payment for registration of the site;
purchase and sale agreement;
passport and additional identity documents;
cadastral plan.

The entire package of documents is accepted by the relevant authority and the decision is made within the period established by law, which is one month.

For information! When several construction processes are carried out by different contractors, it is necessary to prepare estimates for construction work for each type of work.

The price of such a document can vary from 9 to 40 dollars, because... The calculation depends on the number of positions in the document. The period for drawing up documentation is from 1 day, depending on the urgency.

How to make an estimate

Calculating future construction costs is a matter for specialists, but if you are confident in your abilities, you can draw up an estimate for construction yourself. The photo shows an example of an estimate for the construction of a frame house. Procedure for drawing up the document:

decide on the amount of materials;
find the necessary equipment;
negotiate with construction specialists.

When you already have an idea of what the house will be built from, what it will look like, in which part of the site it will be located, what materials will be used, it will not be difficult to calculate the final amount. It is worth noting that there are now a large number of construction forums on the Internet where you can download a blank estimate document form or compose it yourself in an office program.

So, how to make an estimate for the construction of a wooden house? To prepare a cost estimate you must:

Decide on the sequence of actions, understand what work should be entrusted to construction organizations, and what you can do yourself.
The following is the calculation of the estimate, depending on the use of construction technologies. It consists of determining the volume of building materials and structures and their application.
When all this data is already available, you can find a company providing construction services, look at the prices, and find out the cost of materials and work.
Next, the component takes all the obtained values and transfers them to its table, where the totals will be summed up for each type of work or product.
When all the data is filled in in the columns: name, cost of work, unit of measurement, you can perform a general summation of the project. For convenience, you can put the final figure on the right side of the table; for this you need to configure the formula. This calculation can be performed for a structure made of any material and design.

In a similar way, they calculate the amount of materials and the amount of work for all types of houses, regardless of what they are built from.

Cost calculation for foundation, roofing and finishing materials

The estimate for construction work must necessarily contain information about the foundation, roofing and finishing materials; these items are the most expensive. In order to understand how to calculate the volume of material for the foundation of a house, you should multiply the perimeter, height and thickness of the foundation. As a result, we will get the volume and find out the cost of 1 cubic meter. m of concrete and multiply it by the resulting value. It is very easy to calculate the roofing material; for this you need to take the total roof area and the cost per 1 sq.m. from the project for the house. material, and then multiply them together. Calculating the cost of finishing is the most troublesome task; for this you will need to multiply the wall area by the cost of 1 sq.m. each type of product.

We invite you to watch a video that shows how to calculate estimates

Every person knows that any business must begin with calculations. When you are getting ready to hang wallpaper in your house, calculate the costs you will need for wallpaper, glue, putty, and painter’s work. If you want to build a table with your own hands, calculate the cost of boards, screws, and PVA glue.

When building a house, you need to take into account all construction stages and their costs. Such indicators are concentrated in the working draft in the section of the estimate documentation.

How to make an estimate for building a house without loss and revision?

Designers, estimators, foremen, and other categories of engineers and builders know how to draw up an estimate for the construction of a house. Ordinary people who are not involved in construction work, but who have started building a home, have some idea about this. Their desire is clear: they do not want to overpay extra amounts. If a person is persistent and purposeful, it will not be difficult for him to perform the calculations himself. Sample estimates for building a house are widely available on the Internet.

Estimate documentation is prepared based on calculations, which presents points with indicators:

serial number;
numbers of estimates and calculations;
names of the construction stage;
estimated cost, which consists of the costs of construction and installation work, the use of materials, and other expenses;
total estimated cost.

Estimates signed by the compiler’s management and the customer are considered a monetary document, which is the basis for the actual performance of work, participation in a tender, etc.

When drawing up an estimate for building a house, all important and minor items are taken into account. Sometimes it seems to the customer that the inclusion of a particular expense item is not at all necessary. But during construction, unforeseen expenses “loom” that are not taken into account in the documentation. The customer understands this and includes 5-10% in the documentation for unforeseen overhead costs. These may be funds aimed at obtaining permits from fire authorities, gas workers, electricians, water suppliers and other permitting authorities, or other types of expenses.

An approximate example of an estimate for the construction of a house made of wood covered with metal tiles

We will try and introduce you to sample estimate for the construction of a house made of wood with an area of 150 sq.m.

Object name: wooden house
Technology: log construction
Total area: 150 sq.m
Total estimated cost: 1 million 630 thousand 244 rubles (1,630,244 rubles)
Base: design documentation, drawings

1. Carrying out geological, hydrogeological, topographic survey work on the site for the construction of a house (sq.m) 200x100= 20,000 rubles
2. Ground work to remove the humus layer of soil (cub.m) 10x450=4500 rub.
3. Digging a trench for a foundation with a width of 600 mm (cub.m)
50x575=28,750 rub.
4. Manual trench leveling with soil compaction (m2)
22x689=14,960 rub.
5. Backfilling sand and crushed stone into the ditch (m3) 12x1200=14,400.
This also includes the cost of material 12x600 = 7200
Total for this position 14,400 +7200= 21600
6. Installation and, after complete hardening, dismantling of formwork (m2)
60x100=6000;
this also includes the cost of renting formwork 60x250=15000;
total for this position 6000+15000= 21000

7. Tying longitudinal steel reinforcement D12 and transverse reinforcement D8 (m3). The consumption of 60 kg of rolled metal per 1 m3 of concrete is provided.
Work 20x1800=36000;
requirement for fittings D12 and D8 20x60=1200 kg. If the price of reinforcement for 1 ton is 26,000 rubles, then the cost of the material is 1.2 x 2600 = 31,200.
Total for the 7th position 36000+31200= 67200
8. Pouring concrete mixture 20x2500=50000;
cost of concrete 20x5000=100,000
Total cost of 8th item. 50000+100000=150000
9. Performing waterproofing of vertical foundation walls (using hot bitumen applied twice) (m2) 80x150=12000
Cost of materials 80x45=3600
Total for the 9th position 12000+3600=15600
10. Sanding logs with a plane (linear meters) 572x66=37752
11. Finish, 2-sided grinding of logs (m2) 572x400=228800
12. Alignment of corners (pcs.) 8x1500=12000
13. Rolling logs (pcs.) 2x1500=3000
14. Carrying out work on disinfecting logs with special solutions (linear meters) 580x15=8700
cost of septic tanks 580x20=11600
Total 8700+11600=20300
15. Installation of the log house on the foundation (m2) 150x550=82500;
materials 150x1500=225000;
total for the 15th item. 82500+225000=307500
16. Double-sided curling of tow, (linear m) 572x50=28600;
material 572x3=1716;
total for 16th item. 28600+1716=30316
17. Double-sided caulking of a log house, (linear m) 572x140=80080;
material 572x3=1716;
total for the 17th item. 80080+1716=81796
18. Cutting of window and door openings, installation of windows and doors (pcs.)
14x2000=28000;
material 14x2500=35000;
total for the 18th item. 28000+ 35000=63000
19. Installation of beams, installation of floors, laying subfloor (m2)
128x80=10240;
materials 5522.38x6.7=37000;
total for 19th item. 10240+ 37000=47240
20. Cladding of walls, ceiling, roof, finishing flooring (m2) 390x325=126750
materials 7586.2x5.8=44000
in total for 20 items. 126750+44000=170750
21. Painting (m2) 144x50=7200;
paint and other materials 144x70=10080;
total 7200+10080=17280
22. Roof assembly with installation of sheathing (m2) 135x750=101250;
materials 5400x2.5=13500;
total 101250+13500=114750
23. Installation of metal tiles (m2) 135x300=40500;
cost of metal tiles and fasteners 135x350=47250;
total 40500+47250=87750
24. Finishing the base with stone (m2) 22x2200=48400;
25. Installation of metal entrance doors, 2 sets (m2) 2x3500=7000;
material 2x4500=9000;
total for the 25th item. 7000+9000=16000

Total according to estimate: RUB 1,630,244
including:

— for materials: RUB 592,862
— for the execution of work: RUB 1,037,382

As you can see, making an approximate estimate for building a house is not very difficult if you know the consumption of materials, standard prices and current prices. The article also provides a sample of estimates for a residential building made of aerated blocks (see figure).

Conclusion

Every person can calculate construction costs. But specialists do this more skillfully and competently. Sometimes they overestimate the amounts for individual items. In order to regulate the indicators, the owners can perform the calculations themselves or turn to the help of other organizations.