The construction of any large facility, the investment of which is very large, must be carried out with the calculation of the cost of all materials, the performance of work and services, the price tag for the rental and operation of special equipment used. That is why in the construction industry special settlement documents are applied - estimates, which describe all the costs of building a particular property.
As an introduction, we will present such a document. The focus of our attention is 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 transferred to the customer. It most fully describes where and for what purpose the funds allocated for construction will be spent.
Even with the construction of a very small object on his garden plot, the customer has the right to demand an estimate for its construction. In this article, samples of estimates for the construction of a house from different materials will be described and presented.
The composition of the document and who can develop it
Typically, the estimate is based on the design documentation of the facility under construction. It lists the list of materials needed for construction, their cost, time to work and their labor. If during the construction process some special types of work arise, they are also included in the budget as separate items with a price.
This type of documents can be developed either by specialized estimated organizations, or by the designers themselves, who, together with the calculation of the project, can calculate the cost of its construction. Before the work begins, the customer has the right to look at an approximate estimate for the construction and estimate his capabilities in terms of finances. 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 figure it out.
We do it ourselves
For an independent assessment of the cost of a future residential building or construction on its site, it is easiest to follow standard samples and calculate the prices of materials and work. The article presents several estimates for different buildings. It remains only to substitute your own values for the lengths, types of materials used, 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 quotations in one currency.
In what cases are several estimates made?
If the house was built on a turn-key basis, then it is enough for the customer to demand only one document for the costs incurred. In the event that several contractors are hired to carry out different work, and estimates are made exactly the same amount.
Any estimate is drawn up on a standard form, where all completed work is signed, their price and the cost of the materials used. In order to well understand this issue, we present to your attention samples of estimates for the construction of a house from timber, foam blocks and frame type with a detailed description.
Estimates for the construction of a house of timber. Preparatory stage
Before 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 square meters in total it will occupy. The next stage is the allocation of the main groups of expenses. There will be several of them:
- The cost of acquiring basic building material. The main cost item in a particular case will be a beam. Depending on the type of wood, its cross-section, and operational characteristics, the total cost of this group of expenses will also be found.
- Costs of other materials for building a house. This will include roofing, flooring, various materials for wall cladding.
- Costs for finishing materials. These are various paints, parquet, wallpaper with tiles.
- Foundation costs. This part of the structure should be allocated into a separate group and calculate the amount of material and its cost with delivery, as well as the payment for the work of contractors.
- Communication costs. This includes gasification, electricity, plumbing and sewage.
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 the sample in the photo below).
Detailed analysis of available information
So, the initial stage has been completed, the main groups of expenses are outlined in such a document as an estimate for the construction of a house from a bar. A sample will be given later, and consider the collected data. At this stage, it is necessary to allocate all the collected cost groups to the structural elements of the future home - the costs of the foundation, walls, roof and decoration.
The most important thing - when calculating, 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 quantity of future communications, the need to use special equipment and attract professional builders, as well as the cost of delivering materials to the construction site and removing construction waste.
Moreover, it is necessary to take into account the costs of various examinations at the construction site and the remuneration of designers.
Cost estimate
For the correct calculation of investments in a house under construction from a bar, it is necessary to correctly determine the amount of materials, the cost of transportation services and installation types of work.
When calculating the cost of materials, the following basic parameters must be taken into account: type, unit price, required quantity and total cost for the entire volume. A separate line to this amount is added the cost of transportation and the work of movers.
The main material is a bar. First of all, you need to calculate the number of bars needed for building a house. They are usually sold in cubic meters. And here it may 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 building according to technical documentation. 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 needed for construction will be obtained.
We add this indicator to the estimate, after calculating it at the market price.
Calculation of costs for the foundation, roofing and finishing materials
First of all, you need to calculate the dimensions of the foundation, from which the volume of necessary material will be understood. For 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. It remains only to find out the market value of one cubic meter of concrete and multiply it by the obtained value.
Roofing materials are considered very easy. The total roof area of the house is taken from the project documentation, the cost of one square meter of the required roof is monitored, then these data are multiplied.
Calculation of the cost of finishing is the most painstaking, since it uses a variety of materials. You will need to multiply the covered wall area by the cost of one square meter of each material separately.
So, in conclusion, you need to calculate all costs and display the total result. As you can see, a very important and informative document is an estimate for the construction of a house from a bar. The sample will help to carry out the entire procedure as quickly as possible and without errors.
The estimate for the construction of a frame house
The calculation of the costs of building a frame house is not much different from that for a house made of timber. The difference will only be in the material. First you need to determine the shape and size of the future structure. You also need to consider the costs of the foundation, walls and roof, the cost of loading work and transportation costs. It would be a good decision to allocate some percentage of money for unforeseen expenses. These are the main points that should be included in such a document as an estimate for the construction of a frame house (see model below).
Foam block house
Before making an estimate, you need to determine the types of materials that will be used for construction. There are three types of building blocks - foam concrete, aerated concrete and expanded clay concrete. The best choice for construction by operational 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, the total cost of aerated concrete will pour out thirty thousand rubles per square. Recently, foam concrete has also become popular.
When calculating the estimates, the methods discussed above are used. A sample estimate for the construction of a house from foam blocks is given below.
Mandatory paragraphs of the document
Each construction estimate, regardless of the construction and material used, should contain the main points. First of all, this is the cost of materials (both basic and finishing), which any estimate for building a house should contain. The sample given in the article shows that it should indicate the amount of costs for transport and loading, the cost of labor of the crew of foremen, 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).
Samples of estimates for the construction of houses from different materials were considered by us above. They are not very different from each other and have similar compilation methods.
Finally
In order to draw up a construction estimate, it is not necessary to attract specialists for this. You can do it yourself. To do this, not so much is needed - it will be sufficient to have a calculator, a project for the future home and monitoring market rates for construction materials. Also useful examples of estimates for the construction of a house, given in the article. Even in the absence of professional skills, it is possible to see an approximate picture of the total costs and significantly minimize them. If there are doubts about the correctness of your own calculations, then you can contact the specialists.
As you can see, there is nothing complicated in such a document as an estimate for building a house (see the sample above). Good luck in its compilation!