Samples of estimates for building a house. Features of budget preparation. Examples and samples of estimates Important details when drawing up estimates
Building a house is a troublesome and expensive task. Can you estimate how much it will cost you to build it? Unfortunately, not every organization will undertake to tell you a certain amount, because it is very difficult to take into account all the nuances, pitfalls and unforeseen expenses during construction. That is why large construction companies have entire departments for preparing estimates. Those companies that do not have such departments turn to specialized companies.
Estimate is...
An estimate for the construction of a house is a mandatory document, without which no contractor will begin work.
As a rule, when constructing a building, the largest costs are for construction materials and payments to contractors. When calculating the cost of work, the following are taken into account:
- Scope of work;
- Technologies that will be used;
- Construction time;
- How the project will be financed (time frame and volumes).
With the help of the estimate, the customer can control the construction time frame, the compliance of the planned work and the work completed over a certain period.
Thus, an estimate for the construction of a house helps to streamline the work schedule and the flow of finances during the work.
Often, having decided to build, clients submit applications for estimates to several companies at once. The difference in the final cost of the building can be significant. The reason for this phenomenon is different suppliers of materials, number of workers, etc. By comparing estimates from different organizations for the same amount of work, you can objectively assess how you can wisely save money without sacrificing quality. .
Important details when drawing up an estimate
Very often, insignificant costs, which many do not take into account, result in large sums. For example, resolving bureaucratic issues can take up to 15% of the cost of the property. Transport costs may also seem like a small thing. Without taking them into account, you will be very surprised at the final cost of the building. However, the following items are required:
- Development of estimates for all documentation items;
- If the estimate was prepared by another organization, mandatory verification and adjustment;
- The estimate for building a house must be agreed upon by expert organizations.
In addition to minor expenses, a certain percentage of the funds spent are unforeseen expenses. In the documentation they are allocated 2%, but very often the actual figure exceeds the planned one.
How are estimates prepared?
Due to the fact that the estimate is the most important financial document, its preparation is carried out according to certain rules. Some of them were approved back in Soviet times. For example, previously the estimate was drawn up by the organization that developed the project. She received 10% (of the cost of construction work) for and, accordingly, 1% for the estimate.
Sometimes this practice still occurs, but in general today processes are automated. Despite the presence of various programs, it is still more difficult to prepare estimates than in those days due to the variety of modern materials, technologies, construction companies, etc. Depending on the qualifications of workers and competition, you can overpay or save. But savings do not always benefit quality.
Three methods for calculating estimates
Let's look at what types of calculations there are and in which case which type is better to use.
- Estimate for building a house, compiled using a labor-intensive method. Often used for small buildings. The construction company tells the client the amount necessary to pay for their services, and the materials and their delivery are provided by the customer himself. With this method, there are no written agreements or guarantees on the part of the contractor, but it does exist. .
- Universal method. The document consists of a section where the main points of the work are listed step by step, as well as an appendix indicating the cost of materials and their transportation. Such an estimate for building a house will help you better control costs. Disadvantage - the document does not fully reflect some types of costs. For example, “overhead costs” mean salaries, taxes and several other expense items.
- Detailed estimate. The name speaks for itself. Such a document must be drawn up for large-scale construction. The most detailed estimate for building a house reflects only the latest information on prices for building materials and other cost components. The documentation is easy to understand even for those uninitiated in the intricacies.
Below are examples of prepared 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 (cubic meters)
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
The total cost of the 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 the 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
only 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.
The most important stage in the design of any building or system is the preparation of estimate documentation. The estimate allows the customer and the contractor to establish the contract price for the contract, optimally plan and analyze the entire complex of construction work, distribute cash investments, and also carry out interim financial calculations.
First, decide on the method for calculating the cost estimate. In modern construction, the base-index method is more often used.
The construction of any large facility, the financial investment in which is very large, must be carried out with a calculation of the cost of all materials, work and services, the price tag for the rental and operation of the special equipment used. That is why in the construction industry special calculation documents are used - estimates, which outline all the costs for the construction of a certain property.
For your reference, we present this document. Our focus is on the estimate for the construction of a private house, a sample of which is presented below.
Before the construction of any house, an estimate for its construction is calculated, one copy of which is handed over to the customer. It most fully describes where and for what purposes the funds allocated for construction will be spent.
Even when constructing a very small object on his garden plot, the customer has the right to request an estimate for its construction. This article will describe and present sample estimates for building a house from different materials.
Composition of the document and who can develop it
Typically, the estimate is based on the design documentation of the facility under construction. It describes the list of materials needed for construction, their cost, time for work and their labor costs. If during the construction process any special types of work arise, they are also included in the estimate as separate items with a price.
This type of document can be developed either by specialized estimating organizations or by the designers themselves, who, along with the calculation of the project, are able to calculate the cost of its construction. Before work begins, the customer has the right to view the approximate estimate for construction and estimate his financial capabilities. This is very convenient, because you can make adjustments to the documentation in order to use cheaper materials or reduce the size of the future structure. How to make an estimate for building a house? The sample will help you understand everything.
We can handle it ourselves
To independently assess the cost of a future residential building or construction on your site, the easiest way is to follow standard samples and calculate prices for materials and work. The article presents several estimates for different buildings. All that remains is to substitute your length values, types of materials used, and their cost. For example, below are examples of estimates for the construction of a residential building.
It is most convenient to make such calculations in Excel spreadsheets. However, here lies the difficulty. All types of work must be presented in prices in the same currency.
In what cases are several estimates drawn up?
If the construction of the house was completed on a turnkey basis, then the customer only needs to require one document regarding the costs incurred. If several contractors are hired to perform different jobs, and exactly the same number of estimates are drawn up.
Any estimate is drawn up on a standard form, which outlines all the work performed, its price and the cost of the materials used. In order to have a good understanding of this issue, we present to your attention samples of estimates for the construction of a house made of timber, foam blocks and frame type with a detailed description.
Estimate for the construction of a house made of timber. Preparatory stage
Before making basic financial calculations, you need to pay attention to the layout of such a house. You should take into account the number of rooms in the project, the overall dimensions of the structure and how many total square meters it will occupy. The next stage is to identify the main groups of expenses. There will be several of them:
- Costs of purchasing the main one The main one in a particular case will be timber. Depending on the type of wood, its cross-section, and operational characteristics, the total cost of this group of expenses will be determined.
- Costs of other materials to build a house. This will include roofing, floor boards, and various materials for covering the walls of the building.
- Costs of finishing materials. These are various paints, parquet, wallpaper with tiles.
- Foundation costs. This part of the structure should be separated into a separate group and the amount of material and its cost with delivery, as well as payment for the work of contractors, should be calculated.
- Communication costs. This includes gasification, electricity, water supply and sewerage.
It is worth noting that the above cost calculations are almost similar to those that make up the estimate for the construction of a wooden house (you can see a sample in the photo below).
Detailed analysis of available information
So, the initial stage has been completed, the main groups of expenses have been outlined in a document such as an estimate. A sample will be given below, and let’s look at the collected data. At this stage, it is necessary to distribute all collected cost groups among the structural elements of the future home - costs for the foundation, walls, roof and finishing.
The most important thing is that when making calculations, it is necessary to take into account the architectural features of the future structure, the design direction, the format of the roof, the types and number of future communications, the need to use special equipment and attract professional builders, as well as the costs of delivering materials to the construction site and removing construction waste.
Moreover, it is necessary to take into account the costs of conducting various examinations at the construction site and the remuneration of designers.
Estimate calculation
To correctly calculate investments in a timber house under construction, it is necessary to correctly determine the amount of materials, costs for transportation services and installation types of work.
When calculating the costs of materials, it is necessary to take into account the following basic parameters: type, unit price, required quantity and total cost for the entire volume. The costs of transport and work of loaders are added as a separate line to this amount.
The main material is timber. The first step is to calculate the number of beams needed to build a house. They are usually sold in cubic meters. And here it can be difficult to compare the number of cubes to the actual amount of timber.
But it's not a problem. First you need to calculate the total perimeter of the structure, then multiply the resulting value by its height. And the resulting product must be multiplied by the cross-sectional area of the beam. Thus, the total volume of material in cubic meters required for construction will be obtained.
We include this figure in the estimate, having previously calculated it at the market price.
Calculation of costs for foundation, roofing and finishing materials
First of all, you need to calculate the dimensions of the foundation, from which the volume of material required will be clear. To do this, the perimeter of the base of the house is multiplied with the height and thickness of the future foundation. The result is volume data. All that remains is to find out the market value of one cubic meter of concrete and multiply it by the resulting value.
Roofing materials are considered very easy. The total roof area of the house is taken from the design documentation, the cost of one square meter of the required roof is monitored, and then these data are multiplied.
Calculating the cost of finishing is the most painstaking, since a variety of materials are used. You will need to multiply the covered area of the wall by the cost of one square meter of each material separately.
So, in conclusion, you need to calculate all costs and derive the overall result. As you can see, a very important and informative document - the estimate for the Sample will help you complete the entire procedure as quickly as possible and without errors.
Estimate for the construction of a frame house
Calculating the costs of constructing a frame house is not much different from that for a house made of timber. The only difference will be in the material. First you need to determine the shape and dimensions of the future structure. You also need to take into account the costs of the foundation, walls and roof, the cost of loading work, and it would be a good decision to allocate a certain percentage of funds for unforeseen costs. These are the main points that should be included in a document such as an estimate for the construction of a frame house (see sample below).
Foam block house
Before drawing up an estimate, you need to decide on the types of materials that will be used for construction. Blocks for building houses come in three types - foam concrete, aerated concrete and expanded clay concrete. The best choice for construction in terms of performance characteristics would be aerated concrete. Its price tag on the domestic market is not particularly high. If we consider a house with an area of about three hundred square meters, then the total cost of aerated concrete will result in thirty thousand rubles per square. Recently, foam concrete has become popular.
When calculating the estimate, the techniques discussed above are used. A sample estimate is given below.
Mandatory paragraphs of the document
Each construction estimate, regardless of the structure and the material used, must contain the main points. This is, first of all, the cost of materials (both basic and finishing), which should be included in any estimate for building a house. The sample given in the article shows that it should indicate the amount of costs for transport and loading work, the cost of paying a team of craftsmen, and unforeseen expenses.
At the end of the calculations, the final figures are given. They are divided into the amounts of direct costs, basic wages, equipment use, cost of materials and labor costs, overhead costs and planned allowances (profit of the developer company).
We reviewed samples of estimates for building a house from different materials above. They are not very different from each other and have similar composition methods.
Finally
In order to draw up a construction estimate, it is not necessary to involve specialists. You can do it on your own. To do this, you don’t need much - having a calculator, a project for your future home and monitoring market tariffs for building materials will be enough. The sample estimates for building a house given in the article will also be useful. Even in the absence of professional skills, it is possible to see an approximate picture of total costs and significantly minimize them. If you have doubts about the correctness of your own calculations, you can contact specialists.
As you can see, there is nothing complicated in such a document as an estimate for building a house (see sample above). Good luck in compiling it!
Formation of estimates for construction and finishing works is a necessary part of the execution of a contract for the construction and repair of various types of objects.
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In what cases is a document drawn up?
An estimate for construction and finishing work can be drawn up in addition to an agreement both between legal entities and individual entrepreneurs, and between individuals.
Construction and repair projects can also be very different:
- private houses and apartments;
- buildings and structures owned by commercial organizations or government agencies;
- individual premises or entire complexes of buildings, etc.
What is the document for?
An estimate is a preliminary calculation of the cost of building materials and services.
This document is necessary so that the customer under the contract has a clear idea of what repair and construction costs he will face.
In some estimates, in addition to outlining the actual expenses, the period for carrying out certain works is also included. Once drawn up and endorsed, the document allows the customer to better control the work being performed.
If we consider the role of the estimate from the point of view of accounting, then it is also quite obvious: it is on its basis that in most cases the cost of materials, construction, installation and repair work is written off.
To be more precise, write-off occurs after the customer and contractor sign the primary accounting document: the certificate of completion, but the estimate confirms the accuracy of the cost of work and materials stated in it.
The more carefully and detailed the estimate is drawn up, the less likely it is that during the work process any disagreements and controversial issues will arise between the customer and the contractor.
Is it permissible to violate the figures indicated in the estimate?
A special feature of the document is a guarantee that the prices indicated in it will remain unchanged.
Since the estimate is usually preliminary, during the period of actual work (especially if it is long-term), some prices may change significantly.
The amount of materials used may also require adjustment.
Usually this possibility is specified in the contract or the estimate itself (for example, that prices can be increased by 10%, etc.).
If there is no such item in the estimate, then all changes must be agreed upon between the customer and the contractor during the execution of the contract, and if the customer does not object, the estimate can be edited.
In situations where the customer does not agree to increase the cost of work stated in the estimate, the contractor has the right to refuse to fulfill the terms of the contract.
Who is authorized to make estimates?
Typically, the responsibility for creating an estimate lies with the head of the structural unit that is directly involved in the execution of work (foreman, head of a workshop, section, etc.). In any case, this must be a person who knows the standards for the consumption of certain building materials, has an idea of their market value, and is also familiar with the rules for drawing up such documents.
How to create a form
Today, there is no unified estimate form, so representatives of enterprises and organizations can draw it up in any form or, if the executing company has a developed and approved standard template, based on its sample. At the same time, regardless of which method is chosen, it is necessary that the structure of the document corresponds to certain standards of office work, and the text includes a number of certain information.
The standard ones are included in the “header”:
- number, place, date of drawing up the form;
- information about the organizations between which a contract for construction and finishing work has been concluded;
- a link is given to the contract itself (its number and date of conclusion are indicated);
- Positions, surnames, first names and patronymics of managers are entered.
- serial number;
- title of works;
- unit of measurement of work (square meters, kilograms, pieces, etc.);
- price per unit of measurement;
- total cost.
If necessary, you can add additional columns (for example, about the quantity and cost of materials used, information about the devices, equipment, and technology used). The length of the table depends on how much work is planned to be carried out. For convenience, the table can be divided into sections depending on the type of work (plumbing, painting, carpentry, installation, etc.).
Under the table you should make a note indicating whether the prices are final or can be adjusted during the work process.
How to make an estimate
Important condition! It must be signed by the directors of two enterprises: the customer and the contractor (or persons authorized to act on their behalf), and the signatures must only be “live” - the use of facsimile options is not intended.
The estimate can be certified using the seals of organizations, but only on the condition that the use of stamped products is registered in their internal local regulations.
The estimate is made in two copies identical in text and equivalent in law, one for each of the interested parties. After drawing up and endorsement by both parties, the estimate becomes an integral part of the contract, so its presence should be recorded in the internal documentation logbook.