The construction of any large facility, in which monetary investments are very large, must be carried out with the calculation of the cost of all materials, the performance of works and services, the price tag for renting and operating the special equipment used. That is why special settlement documents are used in the construction industry - estimates, in which all the costs for the construction of a particular property are listed.
As an introduction, we 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 describes in the most complete way where and for what purposes the funds allocated for construction will be spent.
Even when building a very small object on his garden plot, the customer has the right to demand an estimate for its construction. This article will describe and present sample estimates forbuilding a house from different materials.
Composition of the document and who can develop it
Usually, the estimate is based on the design documentation of the object under construction. It signs a list of materials needed for construction, their cost, time for work and their labor costs. If any special types of work arise during the construction process, they are also included in the estimate as separate items with a price.
This type of documents can be developed either by specialized budget organizations, or by the designers themselves, who, together with the calculation of the project, are able to calculate the cost of its construction. The customer, before work begins, has the right to view an 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 building. How to make an estimate for the construction of a house? A sample will help you figure it out.
We do it ourselves
To independently assess the cost of a future residential building or construction on your site, the easiest way is to be guided by standard samples and calculate the prices for materials and work. The article presents several estimates for different buildings. It remains only to substitute your own length values, the types of materials used, their cost. For example, below are sample estimates for the construction of a residential building.
The most convenient way to make such calculations is in Excel spreadsheets. However, herelies the complexity. All types of work must be presented in prices in one currency.
When are multiple estimates made?
If the construction of the house was made on a turnkey basis, then it is enough for the customer to require only one document on the costs incurred. In the event that several contractors are hired to perform different works, and exactly the same number of estimates is made.
Any estimate is drawn up on a standard form, where all the work performed, their price and the cost of the materials used are signed. In order to understand this issue well, 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.
Estimates for the construction of a house from a bar. Preparatory stage
Before the main 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:
- The cost of purchasing the main building material. The main cost item in a particular case will be timber. Depending on the type of wood, its cross section, performance characteristics, the total cost of this group of expenses will also be found.
- The cost of other materials to build a house. This will include roofing, floor boards, various wall cladding materials for the building.
- The cost of finishing materials. These are different colorsparquet, wallpaper with tiles.
- Foundation costs. This part of the structure should be allocated in a separate group and calculate the amount of material and its cost with delivery, as well as payment for the work of contractors.
- Communication costs. This includes gasification, electricity, water supply and sewerage.
It is worth noting that the above cost calculations are almost the same as 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 is 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 below, and consider the collected data. At this stage, it is necessary to distribute all the collected cost groups into the structural elements of the future home - the costs of the foundation, walls, roof and decoration.
The most important thing is that when calculating, it is necessary to take into account the architectural features of the future building, the design direction, the format of the roof, the types and number of future communications, the need to use special equipment and the involvement of professional builders, as well as the costs of delivering materials to the construction site and removing the construction garbage.
Moreover, it is necessary to take into account the costs of various examinations on the building site and the remuneration of designers.
Estimates calculation
For the correct calculation of investments in a building under constructiona house made of timber, it is necessary to correctly determine the amount of materials, the cost of transport services and installation types of work.
When calculating the cost of materials, the following main parameters must be taken into account: type, price per unit, required quantity and total cost for the entire volume. A separate line to this amount is added to the costs of transport and the work of loaders.
The main material is timber. The first step is to calculate the number of bars needed to build a house. They are usually sold in cubic meters. And this is where the difficulty can arise when comparing the number of cubes to the actual number of timber.
But that's not a problem. First you need to calculate the total perimeter of the structure according to the technical documentation. Then multiply the resulting value by its height. And the resulting product must be multiplied by the cross-sectional area of \u200b\u200bthe beam. Thus, the total volume of material in cubic meters required for construction will be obtained.
This indicator is included in the estimate, having previously calculated it at the market price.
Calculating the cost of foundation, roofing and finishing materials
First of all, you need to calculate the dimensions of the foundation, from which the volume of the necessary material 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. It remains only to find out the market value of one cubic meter of concrete and multiply it by the resultingvalue.
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.
The calculation of the cost of finishing is the most painstaking, as a variety of materials are used. 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 the costs and display the grand total. 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 complete the entire procedure as quickly and without errors.
Estimate for the construction of a frame house
Calculating the cost of building a frame house is not much different from that for a house made of timber. The difference will be only in the material. First you need to determine the shape and size of the future structure. You also need to take into account the costs of the foundation, walls and roof, the cost of loading and transportation costs. It will be a good decision to allocate some percentage of the funds 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 the sample below).
A foam block house
Before drawing up an estimate, you need to decide on the types of materials that will be used for construction. There are three blocks for building housestypes - foam concrete, aerated concrete and expanded clay concrete. The best choice for construction in terms of performance will be aerated concrete. Its price tag in 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 also become popular.
When calculating the estimate, the methods discussed above are used. A sample estimate for the construction of a foam block house is given below.
Required paragraphs of the document
Each construction estimate, regardless of construction and material used, must contain the main points. This is, first of all, the cost of materials (both basic and finishing), which should contain 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 operations, the cost of paying a team of craftsmen, contingencies.
At the end of the calculations are the final figures. They are subdivided into direct costs, basic wages, equipment usage, material and labor costs, overheads and a planned markup (profit of the developer company).
Sample estimates for building a house from different materials were discussed by us above. They are not very different from each other and have similar composition methods.
In closing
In order to draw up a construction estimate, it is not necessaryattract specialists for this. You can manage on your own. To do this, you don’t need much - it will be enough to have a calculator, a project for a future home and monitor market rates for building materials. Sample estimates for the construction of a house, given in the article, will also come in handy. Even in the absence of professional skills, it is possible to see an approximate picture of the total costs and significantly minimize them. If you have any 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 the construction of a house (see the sample above). Good luck in compiling it!
