Estimate for the construction of a house from foam blocks
Before you start building a house, you need to assess your strength both physically and financially. An estimate for the construction of your house from such material as foam blocks will help to do this.
Today, more and more people are striving to leave their city apartments and live outside the cramped and stuffy metropolitan areas. Someone builds cottages for permanent residence, others, due to various circumstances, want to acquire a country house for summer holidays. In both cases, it is necessary to determine the materials and make a preliminary calculation of construction costs. According to experienced, professional developers, foam blocks are the most profitable building material in all respects. Well, the estimate for building a house from foam blocks will help the correct distribution of money. Based on real possibilities, everyone decides for himself whether to order the construction of a turnkey house or build a building on his own. But, one way or another, it all starts with drawing up a clear action plan and an estimate for the house.
Construction planning
Before proceeding with the preparation of estimates for the construction of a house from foam blocks, the purchase of building materials and, directly, the construction of a house, you need to collect all the necessary documents. The main stage is the development of the project. Its cost varies from 500 to 5000 dollars. First, a rough sketch is made - a sketch by which the designer can understand what the finished house should be like. According to this sketch, the specialist creates a working drawing. If you have certain knowledge and skills, you can draw up a house project yourself, then register it with the appropriate authority, after which you can already start drawing up an estimate and, in fact, the construction itself.
Important: if you are not given a building permit (passport for your own housing project), then there will certainly be difficulties in bringing all the necessary communications (electricity, water, gas, etc.) into the house.
When developing a project on your own and drawing up an estimate for the construction of a house from foam blocks, it is necessary to take into account the features of the landscape, the proximity of groundwater, soil type, climate zone, etc. nuances. All this will help in the right choice of building materials, both for laying the foundation, erecting the "box", and for subsequent finishing work.
Approximate cost of a country house made of foam blocks
As a rule, a small private house costs 300-600 thousand rubles. This amount includes the laying of the foundation, the construction of the "box", the construction of the basement and the roof. Additional costs will fall on the installation of windows, doors, roofing and fine finishing.
Also, the final cost of building a house from foam blocks will depend on the number of rooms (the more isolated rooms inside the house, the more material will be spent on interior partitions and doors). Another important factor is the region in which construction is planned. For example, in the middle lane, the price tag for foam blocks ranges from 3 to 3.5 thousand rubles per cubic meter (28 pieces). At the same time, in the northern regions, the cost of this building material will be slightly higher.
Foundation - cost estimate
How the erected building behaves depends on the method of laying the foundation, its type and quality. The type of foundation is selected in accordance with the characteristics of the soil and the material from which the walls will be built. Since foam blocks are lightweight building materials, a reinforced foundation is not required. Accordingly, the cost of the house will be somewhat lower than the structure of stone or brick. A simple strip foundation is quite suitable for building a house from foam blocks.
Nevertheless, do not forget about the reinforcing ligament - even when erecting a light structure, it is necessary. As for the region in which construction is planned, it is very important to take into account the degree of freezing of the soil in winter - it also depends on what type of foundation should be. It will be most reliable to consult on this issue with specialists who will be able to choose the ideal basis for the future structure in accordance with the data indicated in the passport of the project of a residential private house.
When applying for services to construction organizations, the cost of building a foundation, depending on its type, will be (approximately):
- columnar - from 1000 rubles / m2;
- tape (standard) - from 4000 rubles / r.m.;
- tape (buried) - from 5000 rubles / r.m.;
- monolithic slab - from 6000 rubles / m2;
- pile-screw - from 3000 rubles / piece.
With an independent device of a strip standard foundation, construction costs will amount to approximately 2-3 thousand rubles per linear meter.
When the base is ready, you can proceed to the device of the basement. This stage is necessary, since walls are not erected directly on the foundation. The base will cost approximately 40,000 rubles.
Construction of walls and roof frame
It is worth considering one more nuance. If you decide that the house will be one-story, with an ordinary non-residential attic, then at this stage everything is going right. Well, if you want the building to be with an attic, you should think about strengthening the foundation, since the arrangement of the attic floor implies an increase in the load on the base. In addition, additional materials will be required to finish the attic, which will provide the house with the necessary protection from the cold (thermal insulation).
You should also take into account the height of the ceilings in the house and the overall height of the building as a whole. The optimal ceiling height is 3 meters. With such parameters, for each floor of a house with an area of 10x10 m, an average of 28 cubic meters will be needed. Thus, the cost of one floor of the building without finishing and without installing windows and doors will be about 100,000 rubles.
The type of roof, its shape and roofing materials is a purely individual matter. Here everyone chooses what he likes best: straight, broken, triangular or trapezoidal. The material is also chosen at will: ondulin, metal tile or others. One way or another, according to average estimates, the construction of the roof frame is always equal to about 5% of the cost of building the box.
Calculate the cost per box
As an example, let's take a house with an area of 100 m2, where each side is 10 m, and foam blocks with dimensions of 600x300x200 (mm). The calculation will be made for 5 walls 3 m high - one capital and four external, guided by prices for 2016-2017.
Calculation of the number of blocks for external walls:
- The perimeter of the house, taking into account rounding, is 39 m: (10x2) + (9.4x2) \u003d 38.8 meters.
- To find out the total area of all the walls, we multiply 39 m (the resulting perimeter of the walls) by 3 m (the height of each of them). We get 117 m2.
- The area of the foam concrete block is 0.12 m2 (0.6 m by 0.2 m).
- To find out how many blocks are included in 1 m2, divide 1 by 0.12 and get 8.3 pcs.
- Next, we calculate how many blocks it will take to build the outer walls. To do this, we multiply the total area of \u200b\u200bthe walls (117 square meters) by the number of blocks in one square meter (8.3 pieces) and get 971.1 pieces.
Important: the above calculations do not take into account window and door openings and external walls, they will need to be subtracted from the total area, the calculator will help with this
The number of blocks for the construction of the main wall:
- We obtain the area of \u200b\u200bthe bearing wall by multiplying its width (9.4 m) by its height (3 m). We subtract the area of the doorway from the obtained value, and multiply the final figure by 8.3 (number of blocks in 1 m2). Without taking into account the doorway, 234.06 blocks will go to the main wall.
- The number of blocks for 5 walls without deducting window and door openings is: 971.1 + 234.06 = 1205.16 pcs. Blocks are sold by cubic meters. In one m3 - 27.7 pcs. with dimensions 600x300x200 mm.
To facilitate the calculation of the cost of the total number of blocks, let's convert the pieces into cubic meters: 27.7 pieces (600x300x200) are placed in 1 m3. We divide the total number of blocks by 27.7 and get 43.5 m3. Considering that the house will have at least 2-3 windows and at least 2 doors, then the resulting number of blocks comes with a margin. Here you can do it in different ways: either calculate the required number of blocks with an accuracy of 1 piece, or purchase materials with a margin. The second option is preferable. Thus, the approximate cost of the box is 130-500 thousand rubles.
Other materials: calculation
So, the calculation of the cost of the box is completed, now you can proceed to the calculation of the costs of other elements.
What amount you can meet - it will not be possible to calculate even for experienced builders, so we will proceed from approximate data, namely, we multiply the number of windows and doors by the average cost of materials. In the case of independent work, this amount will be final. If you order services from construction organizations, you will need to add the cost of installation services here.
Now you need to calculate the cost of storey floors. If you want to get a solid building at the exit, then it is best to use monolithic concrete slabs for floors (in the case of building a two-story house). If the building is one-story, you can get by with a tree for overlapping. Here it is worth paying attention to the need for processing wood, because its durability directly depends on the quality of the material. Ceilings for a one-story house will cost about 5-10 thousand rubles (depending on the region), the construction of a two-story house can take from 10 to 50 thousand rubles.
On average, 100 bags of cement will be needed to build a box at home. The price of one bag ranges from 200 to 300 rubles. The total cost is 30,000 rubles. maximum.
Tip: it is better to use sifted sand for mortar. A ton of such material will cost 3,000 rubles.
Conclusion: how much will it cost to build a house
Building a house from foam blocks is much cheaper than from stone or brick. However, there are more costs for insulation. Work on the exterior and interior decoration should be started a year after the construction of the structure. This time will be enough for the structure to shrink.
For insulation, you can use two options for materials - foam and angelin. The first is quite widely known, as for the second, it is a new generation material that “functions” on the principle of a thermos: it does not let cold in from the outside and does not release heat from the inside. Other advantages of the material include ease of installation and increased moisture resistance. You will have to calculate the cost of insulation yourself, but using the example of calculating foam blocks, it is not so difficult to do this. To find out how much it will cost to build a one-story house made of foam blocks, do not forget to take into account the prices for the delivery of materials.
When ordering the construction of a 9x8 m house on a turnkey basis, the approximate cost of building materials and work will be from 2 to 3 million rubles.