Calculate the number of foam concrete blocks for construction. How to calculate the number of foam blocks per house: the main calculation methods and their features

Which man does not dream of building a house with his own hands? After all, this way you can not only create exactly what you need, but also save a decent amount - it will turn out to be at least half the price of buying a ready-made home ownership. And if foam blocks are used as building materials, then the savings will be even greater.

How many materials will be required to build a foam block dwelling? How much will it cost to build a house from foam blocks? And what does this total amount consist of? We will try to answer these questions in the framework of our article.

How much will a house made of foam concrete blocks cost

Having decided to build a foam block house, first of all, it is necessary to determine the amount of building materials required for this purpose. Fortunately, foam concrete blocks are much easier to calculate than any other material (for example, wood or brick).

The blocks are quite large and fit in one row - a comparison with children's cubes is suitable here. So, knowing the parameters of the future home and the parameters of the blocks themselves, you can easily accurately count and order them just as much as you really need. Thus, you do not have to overpay for excess material and for its delivery.

An example of calculating the required number of foam blocks

So, how many foam blocks are needed to build a house? The calculation begins with finding the following initial data:

• building perimeter;
• masonry heights;
• wall thicknesses;
• The size of the foam block.

As an example, let's calculate how many blocks of 600x300x200 millimeters are needed for a one-story house 10x8x2.7 meters (where 10 m is the length, 8 m is the width, and 2.7 m is the height of the building).

And here is a step-by-step calculation instruction:

• We calculate the perimeter of the outer walls as follows - (10 + 8) * 2 \u003d 36 m (we add the width of the house to its length and multiply by two). We multiply the result obtained by the height of the building and get the total area of ​​​​the walls of the house - 36 * 2.7 \u003d 97.2 m².

• Next, we find the area of ​​window and door openings. Conventionally, we will have 5 standard plastic windows (two windows with a size of 1770x1460 mm and three windows with a size of 1470x1460 mm) and 1 front door.

1770*1460*2= 51,6

1470*1460*3= 64,3

51.6 + 64.3 = 11.6 m² area of ​​​​all windows. And since the window openings should be slightly larger than the windows themselves, we can safely round the resulting area (11.6 m²) to 12 m².

Now, as for the front door. Take a standard steel door measuring 99x208 mm. To install it, you need an opening somewhere 102x208 mm. Thus, the area of ​​the doorway, determined in the same way as the area of ​​windows, will be approximately 2 m².

• Let's find the total area of ​​the walls minus windows and doors - 97.2-12-2 = 83.2 m².

• Further - easier. We know that we are building from foam blocks 600x300x200 mm in size, and the thickness of future walls is 300 mm. Using these figures, we calculate the amount of material that will be needed to build the walls of the house. To do this, we multiply the total area of ​​\u200b\u200bthe walls, minus windows and doors, by the thickness of the walls - 83.2 * 0.3 \u003d 24.96 cubic meters of foam block.
• How many pieces of foam blocks measuring 200x300x600 mm in one cubic meter? For the convenience of calculation, we translate millimeters into meters, i.e. it turns out 0.2x0.3x0.6 m. Then we multiply these numbers by each other - 0.2 * 0.3 * 0.6 \u003d 0.036 cubic meters one block. 1 / 0.036 \u003d 27.7 pieces of foam block in one cubic meter.

• It remains only to multiply 27.7 pieces by 24.96 required cubic meters of material: 27.7 * 24.96 = 691.3 pieces of foam blocks will be needed to build a house with the parameters indicated at the beginning.

Advice! Just in case (possible marriage, masonry fight, sawing several blocks when cutting doors and windows), order the number of foam blocks with a minimum margin - not 691.3, but for good measure 700 pieces.

But the mortar for blocks is taken at the rate of 25-30 kilograms per cubic meter of material, that is, in our case it is 24.96 * 30 = 748.8 kg of masonry mortar.

Now you can independently calculate how many foam blocks you need to build your dream home! Knowing the initial data, in the same way, you can easily find the amount of material for the construction of a garage, a bathhouse, internal partitions and other structures.

Related articles:

What is the total amount of the foam block house

The price of building a dwelling from foam concrete blocks is formed from many factors, the most significant of which are the following:

• Development of an individual or purchase of a ready-made project. Drawing up project documentation is the initial stage of any construction.

By the way! You can either purchase a standard plan for your future home or order the creation of an exclusive project. The latter option, of course, is somewhat more expensive, but the result is worth it.

• The cost of building materials. The foam block, despite its excellent physical and technical properties, is much cheaper than traditional brick and stone. Knowing how to calculate the required number of blocks per house, you can easily find out the total amount that will have to be spent on the purchase and delivery of material.

• Foundation laying, erection of walls, construction of a roof. It is remarkable that a powerful foundation is not required for a lightweight foam block structure, so it will be a good idea to save money at this stage of construction.

• Wages of workers. It should be noted that foam concrete blocks are quite light and easy to install - laying them is a pleasure. But for this you still need to have some professional skills and experience.

• Insulation and waterproofing works. If necessary - hydro- and thermal insulation of walls, roofs, floors, internal partitions, attic (if any). At the same time, keep in mind that the thermal conductivity of the foam block is quite low. For this reason, insulating a house from foam blocks will not cause a significant loss to your budget.

• Exterior and interior decoration. It is better to single out this part of the expenses as a separate category, since your personal wishes significantly affect the final amount here.

Note! Foam block walls allow a wide variety of finishes with all kinds of materials: from ordinary plastering and painting, to cladding with siding and decorative stone.

How long does it take to build a house from foam blocks in time? The laying of a foam block wall is several times faster than, for example, a brick wall, so a dwelling from this material can be built in a matter of months.

Output

Thus, the total amount of such a house consists of the cost of the building material itself and the cost of carrying out a whole range of works. Knowing the approximate prices for all stages of construction, as well as calculating the required number of blocks, you can roughly find out how much this pleasure will cost you.

To obtain more accurate information, it is necessary to draw up an estimate, and only a person specialized in this field will cope with this task. In the video presented in this article, you will find additional information on the topic we have discussed.

Material calculation

WALLS:
foam concrete blocks (200x300x600mm):
56.92 m³ x 2900 rub/m³	165068 rub.
reinforced concrete jumpers 2PB 17-2-p (1680x120x140):
12 pcs. x 462 rubles / pc.	5544 rub.
reinforced concrete jumpers 2PB 13-1-p (1290x120x140):
10 pieces. x 383 rub./pc.	3830 rub.
reinforced concrete jumpers 2PB 10-1-p (1030x120x140):
4 things. x 357 rub./pc.	1428 rub.
masonry reinforcing mesh (50x50x3 mm):
33 m² x 102 rubles/m²	3366 rub.
reinforcing bars Ø12 AIII:
0.2 t x 37500 rub/ton	7500 rub.
concrete mix B15-20:
1.7 m³ x 4200 rubles/m³	7140 rub.
extruded polystyrene Penoplex 35:
0.6 m³ x 5100 rub/m³	3060 rub.
siding profile (3660x230mm):
157 pcs. x 437 rub./pc.	68609 rub.
sheathing (40x25mm):
0.4 m³ x 6500 rub/m³	2600 rub.
antiseptic solution:
13 l x 75 rubles/liter	975 rub.
sand-cement mortar:
3.7 m³ x 2700 rub/m³	9990 rub.
:
6.6 m³ x 3700 rub/m³	24420 rub.

TOTAL: on the walls

303530 rub.

FOUNDATION:
sand bedding:
5.4 m³ x 850 rubles/m³	4590 rub.
foundation blocks FBS 24-4-6:
46 pcs. x 3135 rub./pc.	144210 rub.
sand-cement mortar:
1.7 m³ x 2700 rub/m³	4590 rub.
concrete mix B15-20:
21.3 m³ x 4200 rub/m³	89460 rub.
reinforcing bars D10-12 AIII:
1 t x 37500 rub/ton	37500 rub.
edged boards for formwork:
0.7 m³ x 6500 rub/m³	4550 rub.
roll waterproofing RKK-350:
5 rolls x 315 rubles/roll (10m²)	1575 rub.

TOTAL: on the foundation

286475 rub.

COVERS:
pine beams 170x100; 150x100:
5 m³ x 7000 rub./m³	35000 rub.
drywall Knauf (2500x1200x10):
24 pcs. x 260 rub./pc.	6240 rub.
steel profile with fasteners:
203.9 r.m x 49 rub./r.m	9991 rub.
mineral insulation (Rockwool):
17.6 m³ x 3700 rub/m³	65120 rub.
waterproofing (Tyvek Soft):
169 m² x 68 rubles/m²	11492 rub.
PE vapor barrier:
169 m² x 11 rubles/m²	1859 rub.
plywood FK 1525x1525x18:
1.3 m³ x 19000 rub/m³	24700 rub.
subfloor edged boards:
1.4 m³ x 6500 rub/m³	9100 rub.

TOTAL: by floors

163502 rub.

ROOF:
wooden racks (150x50mm):
3.7 m³ x 7000 rub/m³	25900 rub.
antiseptic solution:
54 l x 75 rubles/liter	4050 rub.
waterproofing (Tyvek Soft):
167 m² x 68 rubles/m²	11356 rub.
slate SV-40 1750x1130x5.8:
100 sheets x 265 rubles/sheet;	26500 rub.
slate nails 4.0x100:
7 kg x 70 rubles/kg	490 rub.
figure skate (1000mm):
13 pcs. x 290 rub./pc.	3770 rub.
edged boards 100x25mm:
1.3 m³ x 7000 rub/m³	9100 rub.

10:0,0,0,260;0,290,260,260;290,290,260,0;290,0,0,0|5:192,192,0,260;192,290,57,57;0,192,132,132;192,290,171,171|1127:231,171;231,57|1327:167,75;167,141|2244:0,50;0,169;290,92|2144:79,0;79,260;224,260|2417:290,20|1927:224,-20

RUB 914,183.0

Only for the Moscow region!

Calculation of the cost of work

Do you want to know how much it costs to build your house and choose contractors?

Place an express application and get offers from professional builders!

Layout example 10x9 m for calculation	Structural scheme
		1. Foam block d=300mm; 2. Mineral wool plate d=50mm; 3. cladding with siding; 4. Air channel d=20-50mm; 5. Reinforced concrete screed h=200mm; 6. Foam plastic insulation d=30-50mm; 7. Wood beam ceilings d=150-250mm; 8. slate sheets 9. Foundation prefabricated block tape h=1.8m;

Foam block masonry with cladding of siding panels and intermediate thermal insulation

foam block wall

Currently, foam concrete blocks are a very common, cheap and environmentally friendly masonry material, which, in comparison with other concrete blocks, is characterized by significant capillarity and gas permeability.

According to the norms of heat saving, for the middle zone of the country, an outer wall of foam concrete blocks with a cross section of 0.40 m with an outer fiberglass thermal protection, 50 mm thick, is sufficient.

The exterior finish of walls made of foam concrete blocks should facilitate the transfer of moisture from residential premises outside the structure, in this regard, it is unacceptable to face walls made of foam concrete blocks with cement plaster, paint with "non-breathing" compositions, cover with polystyrene.

Puttying the surface of foamed concrete should be done only after 5-10 months (and sometimes even after a season), due to the significant compressibility of foam concrete blocks - from 2-3 mm per meter and real cracking of the plaster, therefore, for the operational interior lining of foam block houses it is reasonable use of dry plaster panels.

In terms of thermal insulation ability, soundproofing, fire resistance, the foam concrete block overtakes the standard brick many times over.

Due to the nuances of the technological process, foam concrete blocks (compared to gas silicate), are usually not produced with sufficient precision, and therefore, they are laid out on a conventional cement mixture. In this case, the presence of significant jointing of the mortar between blocks of foamed concrete, along with an increase in the cost of work, provokes the formation of thermal “slots” and a weakening of the heat-insulating characteristics of the wall.

When erecting masonry from foam blocks, it is important to link a lot of building subtleties and rules, otherwise, instead of saving on insulation, you can find damp, very cold, and even simply unsafe structures.

• An excessively protruding or uneven block should be ground with a planer to the desired level at the place of its installation.
• The installation of the first row of foam concrete blocks should be approached as carefully as possible, checking the bubble level during installation of the horizon and vertical of the wall.
• For the installation of reinforcement rods, grooves with a depth and width of 30 * 30 mm are cut on the surface of the folded foam concrete blocks with a grinder, which, when the reinforcement is laid, are filled with glue for foam concrete blocks.
• Foam blocks are quite easy to drill, ditch, plan, saw with a conventional saw, mill in a construction site.
• According to the technology, the zones under the window sill and the support zones of the jumpers, as well as the next 4-5 rows of foam blocks, must be laid with reinforcing meshes.
• On the upper row of foam concrete blocks, in a wooden formwork form, a reinforced mortar belt is produced, with a layer of up to 200 mm. On the outer surface, the reinforced concrete screed is insulated with a 50-mm layer of extruded polystyrene foam.

Siding facade

It is worth knowing that a PVC siding profile can have a nice exterior and be used for a long time only if the installation instructions are strictly followed.

Polyvinyl chloride siding profile is characterized by self-extinguishing in case of fire, does not rot, is resistant to weather, biological, mechanical influences.

Now sellers of vinyl siding (companies such as: Varitek, FineBer, Holzplast, Mitten, Snowbird, Ortho, Vytec, Georgia Pacific, Gentek, Tecos, Nordside, Docke, AltaProfile) offer a diverse palette of colors and shades that allows any building to retain its originality .

PVC siding under the influence of open fire only melts, igniting when heated to about 400 ° C (for wood: 230-260 ° C), immediately extinguishing when the source of flame disappears, while the amount of emissions hazardous to health is no more than during smoldering wooden structures.

Due to the fact that PVC siding profiles vary greatly in size with temperature fluctuations, the vinyl panels should be loosely fixed.

Typical construction points for the construction of multi-layer foam block masonry with a vinyl siding facade and an interlayer heat insulator will be:

• A load-bearing wall of foam blocks, 40 cm thick, is made on a lime mortar, while the places where the jumpers are supported, the corners of the walls, the next 5-6 rows of blocks are reinforced with masonry nets.
• In order to hang the siding, pine logs are installed along the outer surface of the masonry, pre-treated with an antiseptic, protruding by 5-7 cm, in increments of 0.50-0.60 m.
• The niches between the racks are filled with a slab basalt fiber thermal screen (type: P-175, Rockwool, P-125, Isover, Izomin, Knauf, Izorok, Ursa, PZh-200), then a steam-conducting fabric is stretched over the racks to protect against blowing and getting wet ( Yutavek, Tyvek, Isospan).
• On top of the waterproofing diffusion fabric, along the beams, in order to create a ventilated gap through which moisture is removed from the heat-insulating layer, galvanized guides or wooden bars protruding by 3–4 cm are installed.
• A decorative cladding layer of vinyl siding is hung on the prepared crate structure.

Additional rules for fixing vinyl siding:

• When installing the next strip of siding, snap it behind the hook-on ledge with the bottom strip and, without stretching, fix it with screws.
• In order not to interfere with thermal contractions and stretching and, accordingly, not to provoke point deformation of the PVC profile, screws or nails should be screwed into PVC siding in the center of the existing factory holes.
• Indents should be left, on the order of a centimeter, in the entry areas of external networks (pipes, cables, brackets, wires), as well as in the areas of articulation of the siding strip and fittings (inner corner, H-profile, outer corner, casing, etc.), to compensate for thermal expansion and contraction of the siding profile.
• Installation of siding profiles is carried out from the bottom to the top, and, first, a hidden initial profile is installed.
• It is unacceptable to strongly attract the screws in the mounting grooves, due to the fact that the installed siding profiles must effortlessly “walk” in the longitudinal direction.
• If you need to hide the seams, it is better to install the siding, starting from the back of the house, moving to the front wall, and each next siding panel will slide over the previous one in the stacked row, with an overlap of an inch, for the same reason, the joints are performed for the next rows , must be shifted relative to each other.

Strip foundation made of reinforced concrete blocks

Concrete blocks are a traditional building component that makes it possible to quickly build the foundation of a cottage.

The use of one or another size of the building block follows from the section of the outer walls of the house. The thickness of the block foundations can be less than the wall masonry of the house because they are much stronger. For the construction of an individual house, reinforced concrete blocks with a thickness of 300 - 400 mm are suitable.

Wall blocks are classified into categories: "FBV" - with a cutout, "FBS" - solid, "FBP" - hollow. As a rule, foundation blocks are made with a height of 550-650 mm, the horizontal size varies within 90-240 cm (FBS-9 - FBS-24), the width is 30-40-50-60 cm.

In the manufacture of a block foundation on dry, non-rocky soils, FBS - blocks can be mounted directly on the leveled base of the construction site.

On drained lands, it is permissible to make FBS - blocks without reinforcing them, but before and after masonry, a reinforced concrete screed with a cross section of about 20 cm with a reinforcing mesh is made.

In order to increase the base area of ​​the foundation, in order to thereby reduce further deformations of the underlying soil, the building blocks are mounted on pre-assembled FL blocks.

The choice of building blocks as foundation material is often motivated by tight deadlines or the ability to work all year round.

In situations where the structure of the soil is not clear, it is recommended for insurance, instead of FL pillows, to arrange a single concrete strip.

Today, the foundation of individual elements, according to the totality of the main characteristics, including: resistance to lateral loads and cost, is inferior to its fellow - a monolithic reinforced foundation base.

• Installation of FL blocks should start from the corner of the house, and first of all, FL blocks are placed under the facade walls, and only then for the internal ones.
• For preparation (100-150 mm) from coarse sand or installed FL supports, FBS are assembled alternately - blocks fastened with cement mortar.
• The assembly of finished blocks is carried out relative to the corners, along perpendicular walls, guided by the theodolite. Ordinary blocks are placed with a forklift on a "bed" of cement mixture.
• Installation should begin with the placement of landmark blocks at the crosshairs of the axes and at the corners of the building. The installation of ordinary blocks is started only after controlling the orientation of the extreme blocks along the horizon and level.
• The position in the plane is checked by measuring the linear size of the sides of the foundation and the diagonal size, and the height level is checked by the hose level or theodolite.
• Windows for passage to the zero level of water and sewer pipes are made, leaving a niche between the blocks, followed by concrete sealing.

wooden floor

Timber-beamed floors, as a rule, are in demand in country construction, due to the availability and simplicity of their construction.

Under the beams, coniferous trees are usually used: larch, spruce, pine, with a residual moisture content of not more than 14%. The best beam is a beam with an aspect ratio of 7/5, for example, 140 x 100 mm.

When calculating lumber for flooring, you need to be guided by ready-made diagrams that give the dependence of the dimensions of the beam structure on the load and the distance between the supporting structures; or it is permissible to proceed from a simplified rule that the width of the beam should be at least 0.042 of the floor length, and the thickness - 50 ÷ 100 mm, with intervals between beam beams of 50 - 100 cm and a load of 150 kgf / sq.m.

With a shortage of a lag of a given size, it is permissible to use boards fastened with self-tapping screws, while maintaining the total size.

Characteristic points for installing a beam ceiling:

• Beam beams are installed in the following order: first of all, the extreme ones, and then, with level adjustment, all the remaining ones. Logs must be led to the wall no shorter than 0.15-0.20 m.
• The beam beams are moved away from the brick wall by at least 5 cm, and the gap between the smoke channel and the beams should be at least 40 cm.
• in structures made of logs, the edges of the beam beams are hemmed in the manner of a cone, and then driven into the finished groove of the upper log to the entire depth of the wall.
• The ends of the beams are sawn at an angle of 60-70 °, treated with an anti-rotten compound (Holzplast, Aquatex, Senezh, Biosept, Dulux, Pinotex, KSD, Tex, Kartocid, Cofadex, Biofa, Tikkurila, Teknos) and wrapped with bituminous cardboard, keeping the end cut open, to protect against possible damage by rot, which occurs when moisture diffuses into the cavity of the brick.
• In brick-and-block houses, the ends of the beams are located in the grooves of the walls, in which moisture condenses, therefore, between the end parts of the beams and the wall, they make air for ventilation, and with a sufficient length of the groove, another layer of thermal insulation is arranged.

The interfloor ceiling does not need to be insulated, the basement ceiling is thermally insulated with the installation of a vapor barrier membrane on top of the insulation layer, and the ceiling of the upper level is insulated with a vapor barrier film underneath the thermal protection.

Since the issue of the bearing capacity of beam interlevel ceilings is removed in practice by an obvious increase in the height of the beams and their number, the situation with fire protection and acoustic protection is more complicated.

A possible technique for improving the fire-retardant and anti-noise properties of wooden interfloor ceilings consists of the following steps:

• To the base of the bearing logs, at 90 ° to them, with the help of elastic clamps, after 300-400 mm, metal profiles are attached - a crate, on which gypsum fiber sheets are hemmed from below.
• On top of the manufactured lattice structure, a synthetic film is laid and stapled to the beams with a stapler, on which mineral wool boards (Izorok, Rockwool, Knauf, Isover, Izomin, Ursa), 50 mm thick, with a transition to the vertical edges of the beams, are closely installed.
• In the rooms of the next level, plywood slabs (1.6 ... 2.5 cm) are mounted on the beams, then a rigid mineral fiber sound absorber (25 ... 30 mm), and again, plywood floor slabs are laid out.

Roofing from slate sheets

The roofing is laid on a rigid structure made of battens and truss trusses.

During the construction of low-rise buildings, a 2- and 3-span structure with medium supports and inclined roof trusses is usually performed.

The distance between the rafter legs is in the range of 600-900 mm with a cross section of the rafter beams 5x15-10x15 cm; the supporting ends of the rafters are lowered onto the Mauerlat with a section of 10x10-15x15 cm.

Perhaps, asbestos-cement slate is a bright example of a roofing material that combines reliability and low price, and which, at the same time, is distinguished by good sound protection, moisture resistance and incombustibility.

The disadvantages of asbestos-cement material are usually considered to be the inconvenience of its use on extraordinary roofs, blackening during many years of exploitation, brittleness during transportation in a damp form. And also, recently there have been statements about the seemingly toxicity of asbestos cement, due to the content of asbestos crystals in it. In relation to this, it should be mentioned that the asbestos raw materials of domestic production are qualitatively different from European materials, and do not pose a danger, especially when they are protected by cement.

Russian enterprises usually produce an 8-wave slate sheet with dimensions of 175x113 cm and a weight of approximately 16 kg, often in a state protected by a water-based dye.

The finished roof surface can be painted with an acrylic coloring composition recommended for slate: Shikril, Eter Akva (Vivacolor), Akrem-Slate, Polifan, Polifarb (Debiza), Akrilakma-Slate, Slate-Color, Dachbeschichtung (Dufa), Kilpi (Tikkurila), which extends the service life of the asbestos-cement coating by more than twice.

For asbestos-cement roofing, valleys and ridges are usually made of galvanized steel sheets.

Roofs made of corrugated asbestos-cement sheets are mainly used on one- and two-pitched roofs and with slopes of the roof components of at least 20 °, the guaranteed service cycle of high-quality assembled slate sheets is 35 ... 40 years.

The rules for installing a roof made of asbestos-cement sheets are quite simple and are as follows:

• Across the rafter legs, with a gap of 200300 ... 400 mm300 mm, bar (5x5 cm) flooring or unedged boards 25 mm thick are hammered.
• So that the four corners of adjacent slate sheets do not overlap and do not cause cracks, the corner parts are cut off at diagonally opposite sheets (at the bottom - at the top, at the top - at the bottom), or slate sheets: the first and last in even rows are sawn, along the long side into symmetrical fragments, for future assembly with a shift of 1/2 canvas.
• In the crests of the corrugations, with an interval of 400-500 mm and at a distance of 80-100 mm from the borders of the slate sheet, mounting holes are drilled, with a diameter of 1-2 mm wider than the nail.
• Through the finished holes, slate sheets are nailed to the bars or boards of the crate, starting from the bottom row, with slate nails, 10 cm high with waterproofing spacers, in the transverse direction - with an overlap of 12 ... 14 cm, and horizontally - with an overlap on the wave.

This product is not in vain widely used in individual construction. Not only residential buildings are being built from it, but also various outbuildings - garages (see for more details), sheds, baths. Popularity is largely due to the fact that all the work can be done without resorting to the services of professional craftsmen. But regardless of personal experience, every "private trader" inevitably faces the problem of how to calculate the number of foam blocks.

Even at the stage of planning and preparation for construction, it is necessary to carefully calculate all the necessary costs, including the purchase of this material. At the end of the article you can find a foam block calculator, but still you need to know the technique yourself. At least in order to check the correctness of the calculations obtained, and, consequently, the preparation of estimates, if this work was carried out by a representative of the company that will carry out the construction under the Contract.

Even if you use the "service", it may not take into account some of the features of the house under construction. Most calculators do not take into account the number and parameters of door and window openings and focus on "solid" walls.

When calculating, you need to rely on the project. Even if it is not there (for example, for a garage), then the dimensions of the future building are taken as the basis.

Initial data

• The total length of the outer walls of the house and the height of the masonry.
• Interior partitions (a set of their sizes minus the dimensions of the doors).
• Wall thickness. For external and internal, these data are different.
• The volume of rejected products. Often this is not taken into account, although in the process of delivery to the construction site, some foam blocks become unusable. The percentage of marriage depends on many factors (road conditions, remoteness), but there are some statistics. Ask the experts for this question.
• Plus - a small margin (usually 5%), because sometimes, depending on the configuration of the installation site, you will have to cut and add individual parts of the products.

All foam blocks have the same length (if not prepared by special order). They differ in height (small range) and thickness. To calculate how many foam blocks are needed per house, it is necessary to divide all partitions, walls, and so on into groups in which products of the same dimensions appear.

In each, the total surface area is calculated (total length x height). Now let's calculate the parameters of all openings. The difference in values ​​​​is the area of ​​\u200b\u200bfoam concrete masonry. Knowing the length and width of 1 block, it is easy to determine the required number of products of given dimensions. If the masonry is carried out in 2 layers (blocks of small thickness), then the data obtained requires "x 2".

Guided by this information, it will not be difficult to calculate the required number of foam blocks, regardless of how the installation of products is carried out.

Online foam block calculator

When choosing the right material for building a house, an important role is played by the final cost of the materials necessary for the construction of the building. The calculator presented on the site is capable of running at home in a couple of seconds.

In order to calculate the materials and the approximate cost of construction, you need to enter the initial data of the future object into special forms, select the required indicators from the drop-down menu and start the calculation process.

This article discusses in detail the main characteristics of the house, which are taken into account when assessing the cost of building a house. Thus, an interactive calculator is used to calculate the quantity and parameters for the construction of wall structures for residential and non-residential premises.

When calculating, it is possible to take into account gables, window and door openings. The calculator provides information on the required amount of basic materials - such as sand-cement mortar, masonry mesh and their cost.

The values ​​that the calculator requires you to specify are not always familiar to the inexperienced builder, and this article is intended to fill this gap. Below is a description of the main materials used in construction and their characteristics.

Foam concrete: basic information

Foam concrete blocks are one of the types of cellular porous concrete, which, in addition to water, contains cement, sand and a foaming agent. The blowing agent is a key component of the concrete mixture for porous blocks, because thanks to it the material acquires air pores and becomes light and breathable.

The structure of such concrete is called cellular because it contains a large number of closed air pores uniformly distributed throughout the entire volume of the material.

Foam concrete is one of the most popular building materials. With its help, the main work is carried out:

• block construction of external walls,
• block construction of internal walls and ceilings,
• use as a heat insulating material,
• application for the purpose of sound insulation from external noise.

In order to use the calculator, certain information is required. In particular, the calculator is able to calculate foam blocks for a house if the following input data is available:

• block dimensions: length, height, width
• material density (D)
• building perimeter (length of all walls)
• corner wall height
• wall thickness
• thickness of the layer of masonry mixture
• frequency of laying masonry mesh
• foam block cost per piece

Foam concrete dimensions

The dimensions of foam concrete blocks depend on the approved project and the wishes of the customer. When choosing the required size, it takes into account what type of wall will be built with their help: a monolithic, internal partition.

Depending on the potential loads on the wall, the required density and functions of the wall, the size of the foam block is determined. The length in this matter is a secondary indicator, but the width is the main one. It is the thickness of the wall that affects the ability of the building to withstand loads and perform heat and sound insulating functions.

The standard size of foam concrete blocks is 200x300x600 mm (thickness x height x length). Blocks of this size are used for exterior walls. Foam concrete with a wall thickness of 100 mm is selected for the construction of internal walls and is called a semi-block.

The block length of 600 mm is regulated by GOST 21520-89. In most cases, foam concrete is produced in this length.

Material density

The strength of foam concrete depends on its density. The density of the material is represented by several groups:

• D300-D500
• D600-D1000
• D1000-D1200

The D300-D500 group belongs to the category of heat-insulating materials and is used for walls already built from other materials.

The D600-D1000 group is included in the category of heat-insulating and structural materials. This means that these concretes can be used to insulate the walls of buildings, as well as to build wall structures from them for one- and two-story houses, as well as for building walls inside the house.

Concretes D1000-D1200 are used for the construction of the outer walls of houses with a number of storeys from one to four floors. Such materials are the most durable and resistant to mechanical stress.

The quality of foam concrete has a huge impact on the monumentality of the final building. Due to the low cost and great popularity, it is produced by enterprises - large and small, handicraft.

Because of the desire to save money, components hazardous to human health are included in the composition of the concrete mix, cheap low-quality components are selected and the composition of the concrete is changed. The result is a material that is unstable to mechanical stress, unsuitable for load-bearing structures, even with the D1200 marking.

Building perimeter

To find out the perimeter of the future building, you need to use the scheme of the future project. When calculating, you need to know the perimeter of the outer walls and the inner ones.

The outer perimeter is obtained by adding the length of all the outer walls of the building.

The inner perimeter consists of the length of the walls that divide the house into rooms or participate in other interior solutions.

During construction, it is possible to use the same concrete for indoor and outdoor construction, but this significantly increases the cost of the project. Therefore, for external walls, foam concrete marked D600-D1200 is usually used, and for internal walls - blocks and semi-blocks of the D300-D600 brand.

Wall height

This parameter is determined strictly by the values ​​that are provided for by the project of the house. Builders recommend purchasing foam concrete with a margin of 10%, since material breakage occurs during transportation and processing.

Wall thickness

When calculating the thickness of the house, again, you should refer to the project, these data are usually laid down at the design stage. Here it should be borne in mind the fact that the thickness indicator is taken taking into account the thickness of the masonry joint.

The thickness of the masonry mixture

During construction, horizontal seams and butt joints made from standard-purpose mortars usually have a thickness of not more than 15 mm, but not less than 6 mm. It should be borne in mind that a seam with a thickness of more than 20 mm greatly reduces the soundproofing qualities of foam concrete.

The frequency of use of masonry mesh

The amount of masonry mesh is measured in meters. It is used to further strengthen the layer of foam blocks, increasing the monolithic qualities of the house and the overall strength of the structure. The frequency depends on the type of future house, the complexity of its design and the type of foam blocks.

The cost of the foam block

The cost of the foam block depends on its thickness and density, as well as on what materials were used in its production. On average, the price of a foam block of standard sizes is from 80 rubles apiece.

Thus, in order to calculate foam blocks for a house, the calculator must take into account all of the above data. Without them, it is impossible to determine the volume of materials and the final cost of the project. Most of the data can be obtained from the project of the future building.

1. 
   An interactive calculator for building a house from aerated concrete is necessary to perform calculations of building materials that will be required during the construction of real estate objects - houses, baths, sheds, garages, utility rooms. IN...

Foam blocks are a well-known and well-known building material used for the construction of wall structures. The material is a fairly lightweight concrete with a porous structure. Part...
2. 
   Twenty years ago it was impossible to find a private sauna built from any materials other than wood. However, with the advent of such material as foam concrete, baths and ...

This is an issue that needs to be addressed at the preparatory stage of construction. You can accomplish this task in several ways:

use special software;

resort to the help of an online calculator;

contact a specialist or a more experienced friend with a question;

do everything on your own.

This article will tell you how to correctly calculate the number of foam blocks for a house on your own.

What is taken into account when calculating foam blocks for building a house?

Attention! In order to correctly calculate the construction of a house from foam blocks, you need to determine in advance the dimensions of all walls, both external and internal, and also take into account the dimensions of the foam block itself. The first step is to calculate the required amount of material around the perimeter of the building, and then calculate the required number of blocks, which is necessary for the construction of internal walls.

Back to content

How to calculate the required amount of material in one row around the perimeter of the building?

Suppose there is a building with four walls. The length of one wall is 10 m, and its height is 3 m. First you need to find the number of foam blocks in one row around the perimeter. To do this, it is necessary to calculate the total length of the four walls, in this case it is 40 m. The found value must be divided by the length of one block. Suppose, in this particular case, materials with dimensions of 0.2 m x 0.3 m x 0.5 m (height, width, length) are used. You just need to divide 40 by 0.5. The result is the number 80. It displays the required amount of building material for the construction of the first row of a structure with a wall length of 10 m.

Calculating the number of rows

This mathematical operation is even simpler than the previous one. To do this, you need to divide the wall height value by the block height value. As mentioned above, in this case, the height of the wall is 3 m, and the height of the block is 0.2 m. The quotient of this division is 15, which means that 15 rows of foam blocks must be laid out to obtain a structure 3 m high.

After calculating the amount of material in a row and the number of rows, you only need to multiply these two values. We multiply 80 by 15, it turns out 1200. This amount of material is necessary to build a house according to the given parameters. Now the question of how to calculate foam blocks for a house will no longer arise for you.

It should be remembered that the building also has door and window openings, and therefore the final number of foam blocks will be slightly less than the numbers obtained after the calculation.

Attention! If the building has some architectural complexity, then you need to measure its parts separately, and then summarize the data obtained.

How to choose the right foam block?

To minimize the loss of material during cutting and use, it is necessary to make the right choice of block. How to calculate foam blocks for a house, of course, is a difficult question, but it is not inferior in importance to the issue of selecting building materials.

During the purchase, you must adhere to the following rules:

You need to carefully check the geometry of the blocks. A high-quality foam block should have an even structure and not have depressions. To check the material, it is enough to build a small structure of two or three blocks - it should turn out to be stable. The flat surface of the block allows you to save mortar during construction.

The material should be checked for cracks. If there are any, then the foam block is of poor quality. Perhaps, during its manufacture, the drying technology was not observed. It is not worth purchasing such products, since some blocks will crumble even during transportation.

You should also pay attention to the color of the products. It should be gray with some deviations towards light or dark tones. If the color does not match the one indicated earlier, then the characteristics of the product have been changed, or maybe even the seller issues gas blocks for foam blocks.

Before making a purchase, you need to know the density of the material. Foam blocks that are used for private construction should have a density of 700 to 1000 kg / m³.

It is also worth looking at the chipped foam block. In a quality material, the bubbles are spherical rather than elliptical.

The hardness of the material is another important indicator. To check it, you just need to rub two fragments of the foam block against each other. If the blocks crumble, it means that the manufacturer decided to save money and did not comply with the required ratio of raw materials in the manufacture.

How to build a reliable building from a foam block?

To avoid various problems with the structure of this material, you need not only to make the correct calculation of building a house from foam blocks, but also to know some of the nuances of its construction.

It is not necessary to insulate the building from the inside. It is necessary to make external insulation. If this condition is not met, water vapor will begin to condense inside the walls, as a result of which the structure will quickly become unusable.

It is also necessary to waterproof the foundation before using foam blocks. This measure will prevent water from entering the base of the structure, increasing its service life.

Don't rush. For a working day, it is enough to lay out 4-5 rows of blocks. In this case, it is better not to recycle.

Every two rows of foam blocks should be reinforced. This operation is necessary to protect the building from cracking.

It is better to use glue, not mortar. So you can not only save time, but also create a thinner and more aesthetic seam, as well as save on insulation.

The cost of foam blocks

The cost of building a foam block house directly depends on the cost of building materials. The price of the foam block is formed taking into account the following factors:

dimensions;

density;

manufacturing company.

On average, one foam block will cost 130 r, and one m³ of this material will cost up to 3000 r. For laying one m³ of blocks, about 25 kg of glue will be required, which costs 200-300 rubles.

Everyone dreams of their own home, many, having overcome all obstacles, are coming close to making their dreams come true, having decided on the construction site, the plan of the future home, the materials that will be needed for construction and decoration, and even having prepared a cat, whose soft paw, according to tradition, should be the first to step into a new dwelling. It remains to be done a little, to find out how to calculate how many foam blocks are needed for the construction of the house, what sizes will be optimal and, finally, build everything.

Before you start counting, you need to decide on the initial calculation parameters and tolerances, that is, you need an accurate building plan with all sizes, number and type of doors and windows. Possible losses for damage to foam blocks during transportation, construction, as well as possible marriage should be foreseen.

It is necessary to decide in advance what the house will then be sheathed with, and what heat-insulating material (if it is planned to be used) is supposed to be used.

The calculations should also take into account the climatic conditions of the area, for which it is desirable to calculate what wall thickness and, accordingly, the size of the foam blocks will be needed to ensure the safety of heat inside the house, comply with the requirements of the relevant SNiP, and ensure comfortable living.

Wall thickness calculation

You can often find advice that foam blocks of the popular size 200x300x600 mm, combined with additional thermal insulation, are enough for the vast majority of Russian regions. You can take this on faith, but given that we are building for ourselves, and then we ourselves will live in the house, it is not difficult, and perhaps necessary, to check this recommendation.

For the construction of walls in private low-rise construction, it is required to use foam blocks with a density of 600-800 kg / m3, their thermal conductivity coefficients:

• D600 - 0.14 W/(m*ºC)
• D700 - 0.18 W/(m*ºC)
• D800 - 0.21 W/(m*ºC)

In the case of brick cladding, we take into account its thermal conductivity - 0.56 W / (m * ºC). According to the requirements of SNiP, the heat transfer resistance of the outer wall must be at least 3.5 °C*sq.m./W. Now you can calculate the thickness of the foam concrete wall, which will provide the required characteristics, according to the formula R = d / λ, where R is 3.5 (from SNiP), d is the wall thickness, λ is the total thermal conductivity of the materials.

To calculate λ, knowing the values ​​​​for the foam block and brick, we translate all values ​​\u200b\u200bin meters, we assume that the masonry will be 120 mm wide, that is, 0.12 m, we get: 0.12 / 0.56 \u003d 0.21 for the thermal conductivity of bricks. Then the final value of the thickness will be: (3.5 - 0.21) * 0.14 = 0.46 m or at least 460 mm. A lot, but if you use a heater, for example, mineral wool 50 mm thick with a thermal conductivity of 0.046, then first we recalculate the value for it: 0.05 / 0.046 = 1.09.

Mineral wool between foam concrete blocks and bricks

The final formula for calculating the wall thickness will now look like this: (3.5 - 0.21 - 1.09) * 0.14 = 0.30 m, that is, the use of insulation material can significantly reduce the thickness of the walls and confirms that the recommendation to use a block of 200x300x600 mm is quite fair.

How many foam blocks of the D700 or D800 brands are needed to build a house, we calculate in the same way. The higher the density, the greater the heat loss, but the greater the mechanical strength of the foam blocks. So, without taking into account the insulation layer, when using the D800, the calculated thickness will be already 690 mm.

These figures are rather rough and calculated based on the values ​​for the regions of Moscow and St. Petersburg. In general, they are applicable to almost any region of the country, but given the climatic features of the regions of the north with low winter temperatures, or the south with a milder climate, you may have to make adjustments, paying more attention to wall insulation, their thickness.

Calculation of the number of foam blocks

Having decided on the dimensions, we calculate how many foam blocks are needed for a one-story house, for example, 150 sq. m. 10x15 in size and 2.8 m high with one internal load-bearing and two non-bearing walls. Let's assume that there will be one entrance door with a size of 0.9x2 m, 4 windows with a size of 1420x1460 mm each, 2 internal doors for a load-bearing wall with a size of 0.8x2 m.

As we have already determined, for external walls we use foam blocks of size 200x300x600 mm, for internal load-bearing walls you can use blocks with a thickness of 200 mm (you can use the same blocks, but install them on the short side), and for partitions we use blocks of size 100x300x600 mm.

So, let's determine how much for a house of 150 square meters. meters need foam blocks:

1. It is necessary to calculate the perimeter of the house: 2 walls of 10 and 2 of 15 meters each give 50 in total.
2. Now you need to calculate the area: multiply 50 m by a height of 2.8 m - we get 140 square meters. m.
3. We add an internal load-bearing wall, reducing its length by the total thickness of the two external walls: 10 m - 0.6 m = 9.4 m, its area is 26.3 sq. m. The total area of ​​​​the five walls is 166.3 square meters. m.
4. We calculate the area of ​​​​the front door - 1.8 sq.m. Windows area - 8.3 square meters. m, and the area of ​​​​internal doors is 3.2 squares.
5. The total area of ​​the load-bearing walls of the building, taking into account doors and windows, is 153 square meters. m.
6. We calculate the area of ​​foam blocks for external walls: 0.2 m * 0.6 m = 0.12 sq. m.

It does not take into account the gaps between the blocks for mortar or glue. The technology for mounting walls made of foam blocks is not included in the topic of the article, but, given the accuracy of observing their geometric dimensions, glue should be used instead of a traditional solution.

The smaller the gaps, the better, since they are good “bridges” for the penetration of cold into the house, so the thickness of the seams of several millimeters can be neglected.

It is necessary to purchase foam blocks with some margin, taking into account their possible damage during transportation or construction.

We showed an algorithm on how to calculate how many foam blocks are needed for a house planned for construction. We offer to calculate their number for internal walls, partitions or for the second floor on our own, or you can use online calculators. How many foam blocks are needed for a house of 100 sq. m., with other sizes and number of windows, doors, internal walls, floors? The calculation is done in the same way, and do not forget that it is better if a few blocks remain than they end before the walls of the house are completed.

You can calculate the required amount of building materials in a slightly different way. Counting their number in one row around the entire perimeter, then determining the number of rows and multiplying the two values, find the result. The resulting number of blocks can be converted into an area, reduced by the size of windows, doors. The result should be the same.

Conclusion

On sale you can find several sizes of blocks. When performing the calculation, you can focus on their different sizes, increasing the thickness, which will allow you to use cheaper insulation or even abandon it altogether. After performing several calculations and determining the cost of materials, it will be possible to choose the optimal one both in terms of financial investments and labor costs for construction. We hope that, having received the final figures, the dream of a house will come even closer to being realized.

In contact with

The construction of a house begins with the preparation of a detailed action plan and a project of the object itself, which indicates the dimensions of the future building and materials for construction. Next, you should make calculations of the necessary building material for your building, in accordance with what you choose: wood, brick, aerated concrete, foam block or something else. This is done by the contractor, if you have not decided to build your own house. Then all these issues fall on your shoulders, and you will have to calculate the required volume of building materials, their purchase and delivery.

Today, it is the construction of foam blocks that is popular, because the construction is not expensive, but at the same time it is not inferior in quality to brick or wood. This material has excellent characteristics and is inexpensive.

What are foam blocks?

This is a block of foamed concrete with the addition of water and sand, which is usually produced in the size of 30x40 cm (but can be other sizes). Although it is, in fact, concrete, but such blocks can float on the surface of the water and do not sink. In the photo of the house from the foam blocks you can see their appearance.

It happens that a person who is unenlightened in terms of construction confuses aerated concrete and foam concrete. But these are different materials, which differ significantly in cost and quality characteristics. Foam blocks are more moisture resistant, and their price is lower than aerated concrete blocks, and the installation itself is simple and takes a little time.

How many foam blocks do you need for a house? How to calculate the required amount?

In order to start building your own cottage, you need to calculate how many parts you need to buy. The sale is based on cubic meters, so you should determine the volume in cubic meters of your home. This is usually done by the contractor, but you yourself should know how much material to count on and how much money to allocate for this, so that you do not subsequently buy it or overpay for extra blocks.

This material is quite easy to saw or split into several parts that can be successfully used for masonry, which does not require them to be purchased with a large margin. And even if several parts break during transportation, they can also be used in construction. But when calculating the order quantity, take into account the factor that you may lose several blocks of material due to damage.

If you cannot make the calculation yourself, an online foam block house calculator will come to the rescue. You will need to enter all the initial parameters for your building, and the program will give you the result. Although you can quite cope with this on your own - you just need to decide on the thickness of the wall, its height, the size of future windows and doors, and their number.

We carry out the calculation of the foam block for the house

Method one:

1. Let's divide the walls into groups according to their thickness to make it easier to calculate the required amount of material: internal and external load-bearing, non-bearing, etc. This is necessary in order to determine what size of foam blocks will be needed more, because the load-bearing external and internal walls must be thicker, which requires the purchase of elements of a certain size. Non-load-bearing indoor walls can be built with smaller material.
2. We measure the length of all walls along the perimeter, as well as by subgroups. Here we calculate the area of ​​​​future windows and doors in order to subtract it from the total.
3. We multiply the height of the walls, their length and thickness in order to calculate the foam blocks for the house and find out the total volume of masonry.
4. After that, you can calculate the number of foam blocks that you need to purchase. To do this, we divide the volume of the whole house by the volume of a separate block, we get how much material you need to buy. To be more sure that it will be enough, we will increase this number by about 5% (this is a small supply of blocks that can be very damaged during delivery and require their replacement).

Thus, we carried out calculations with the calculation of the volume of the whole house, or you can use another method.

Method two:

1. We measure the perimeter of the building. We add the results of the lengths of all sides together. For example, 26 m.
2. The value that we got must be divided by the length of one block of material. It turns out the value that determines how many foam blocks will be located along the perimeter of the building in one row. Perimeter 26m: 0.6m (foam block length) = 43.3 - the number of blocks in one row.
3. Next, you need to calculate how many rows there will be in your building. To do this, you need to divide the height of the wall of your house by the height of the foam block that you are using. For example, height 3m:0.2m (block height) = 15 rows.
4. The result obtained from the previous action must be multiplied by the number that determines how many foam blocks are in one row along the perimeter of the building:

15 * 43.3 \u003d 649.5 - the total number of blocks for the entire building.

But this figure indicates the number of foam blocks for the building, excluding doors and windows. And this is a significant change, which can also be calculated for each of the walls and subtracted either at the end or even during the initial calculations of the perimeters and heights of the walls. But do not forget to purchase material with some margin in case of damage (about 5%).

Calculating the number of foam blocks for a house is one of the tasks that must be solved before construction begins. There are several ways to do this: use specialized programs, online calculators, ask more experienced comrades for help, or rely on your own strength and do everything yourself. We suggest that you familiarize yourself with the phased calculation of building a house from foam blocks in this article.

What is taken into account when calculating foam blocks for building a house?

To calculate the construction of a house from foam blocks correctly, you need to know the length, thickness and height of all walls (external and internal) and the same dimensions of one foam block. First you need to calculate the required number of foam blocks around the perimeter of the building, and then proceed to find the amount of material for the interior walls.

Calculation of the number of foam blocks in one row along the perimeter of the building

Suppose there is a house with four walls, dimensions of 10 × 10 meters and a height of 3 meters. First you need to find the number of blocks in one row around the perimeter. To do this, the total length of the walls is calculated (10 + 10 + 10 + 10 \u003d 40). The resulting value is divided by the length of one foam block. Let's use blocks with dimensions of 20 cm x 30 cm x 50 cm (H*W*D). Then you need to divide 40 by 0.5 (50 centimeters must be converted to meters). We get the number 80. That is how many blocks will be needed to lay out the first row of the house with dimensions (10 × 10 meters) around the perimeter.

Calculating the number of rows

The number of rows is easy to find. To do this, the value of the height of the wall is divided by the height of the foam block. Our block height is twenty centimeters, and the walls are three meters. Therefore, you need to divide 3 by 0.2 (we translate centimeters into meters), we get 15. 15 rows must be laid out to get the height of the house at three meters.

Finding the total number of foam blocks

The number of blocks in one row and the number of rows found. It remains only to multiply these values ​​\u200b\u200band get the total amount of building material for building a house. So, we multiply 15 by 80, we get 1200. That is how many blocks it will take to lay out the outer walls, three meters high and dimensions (W * H) 10 × 10.

In addition to walls, houses have window and door openings, so the amount of material can be reduced.

If the house has complex architectural forms (walls with curves, etc.), then all its parts are measured separately, summarized, and then the number of blocks is calculated.

If you already have a house and you decide to slightly expand the area, then we recommend that you familiarize yourself with the construction of an extension to the house from foam blocks. The article contains step-by-step instructions for building an extension.

The cost of foam blocks

The price of blocks depends on their size, density, manufacturer and some other parameters. The average cost of one block is 90-130 rubles, and one cubic meter of products is 2500-3000 rubles. A bag of glue for foam blocks (25 kilograms) will cost 200-300 rubles. Approximately 25-28 kilograms of glue will be required for laying one cubic meter of foam blocks.

How to calculate the cost of a house from foam blocks?

The calculation of the cost of a house from foam blocks depends on several parameters:

• Its location
• Type of infrastructure
• squares
• Number of floors
• Additional materials
• Workforce qualifications and other factors

The average cost of building a foam block house is 13,000-16,000 rubles per square meter. If you plan to build, you can save money allocated for workers. However, if you do not have the proper experience, then we do not recommend doing this. During the construction process, you can make many mistakes for which you will have to pay an additional price. The main thing is to choose the right developer company.

Video on how to calculate foam blocks for a house

What is more profitable to build: brick or aerated concrete?

Problems with the construction of a country house on their own can begin already at the very first stage - when the building is only being designed. Not only do you need to take into account all the nuances yourself, you will also need to calculate all the costs associated with the purchase of building materials. We will help you with this issue - we will teach you how to calculate the required amount of foam concrete products for the house.

Design stage

That is why you need a quality project that takes into account all the slightest nuances.

• First you need to decide on the total area of ​​\u200b\u200bthe building, this is important both at the stage of building the foundation, and when designing the second floor or attic space. In small areas it is better to build narrow multi-storey buildings, enough building 7 by 7 or 8 by 8 m.
• The calculation of internal surfaces is just as necessary as the calculation of the bearing surface. Do not forget that in a two-story house, 1-2 load-bearing partitions are required so that the load on the second floor is not so critical for the building.
• At the design stage, it is important to immediately determine the number of window and door openings in order to take into account the data obtained for the calculation.

Note! An equally important part is communications, but they do not carry a monetary burden for the purchase of materials, so we will not talk about them.

Self-calculation

Now that you know what you should pay attention to initially, you can move on to a visual example, otherwise you simply won’t be able to calculate how many foam blocks you need per house.

We take as a basis a two-story house with a height of each floor of 3 m, side lengths of 7 by 8 m, the location of the internal walls is repeated, only on the first floor there is one carrier, and on the second everything is made of lightweight blocks. For facade walls, we will use blocks with dimensions of 600x250x400 mm (LxHxW).

For your information! There is a calculator on the Internet - how many foam blocks you need for a house with it is easy to calculate, but it does not take into account the features of your structure. For example, the counting system does not include internal walls and interior partitions.

• First of all, it is necessary to determine the total area - 7 + 7 + 8 + 8 = 30 linear meters are occupied by our facade walls.
• We add here an internal partition made of foam concrete 8 - 0.8 (the thickness of the two facade walls, since the partition is located between them) = 7.2 + 30 = 37.2 l.m. the total length of the walls of the first floor.
• Now we translate everything into square meters, for this we multiply the result by the height - 37.2 x 3 = 111.6 m2.

Note! Although the interior partition will be of a lower height, the minimum margin will not hurt us.

• It remains to determine the total area of ​​the first floor in cubes, for this we multiply the squares by the thickness of the walls - 111.6 x 0.4 = 44.64 m3.

• We need to find out what volume one building block has - 0.6 x 0.25 x 0.4 (we multiply all sides of the product) = 0.06 m3.
• Now you need to divide the total quadrature by the result of one block - 44.64 / 0.06 = 744 pieces.

This result is checked as follows:

• We divide 1 square meter by the volume of 1 foam concrete block, as a result we get about 17 pieces.
• We multiply this number by the total area - 17 x 44.64 \u003d 758 pieces.

The difference obtained in the calculations is allowed no more than 5%, and this number of blocks goes in reserve.

Related articles:

Including all openings

But that's not all. To calculate how much foam block is needed per house, it is necessary to take into account the area of ​​window and door openings. After all, if we are to save, then it is right to save - so that the costs are as low as possible. The price (cost) of foam blocks for 1 cubic meter is about 900 rubles. How many foam blocks in a cube? It depends on the block sizes.

• So, we count the number of windows and doors.
• We multiply the number of doors by the opening area - 5 x 2.25 (standard window dimensions 1500x1500) = 11.25 m2.
• We add to the result the area of ​​​​the door (two) - 11.25 + 3.2 = 14.45 m2.
• Subtract the result from the total area - 111.6 - 14.45 = 97.15 m2.
• We translate into cubic meters - 97.15 x 0.4 \u003d 38.86 m3.
• We divide by the volume of one block - 38.86 / 0.06 = 648 pieces.

As you can see, the savings are almost 100 foam concrete blocks, which is about 6 cubic meters, that is, if converted into money, then a little more than 4,000 rubles.

Internal partitions

• On the first floor there is a partition 3.2 m long, to which we add the internal walls of the second floor - 3.2 + 7.2 + 3.5 = 13.9 running meters.
• The height of the partitions is slightly less than that of the load-bearing walls, depending on the thickness of the ceiling and the floor covering, for example, take 2.7 m - 13.9 x 2.7 = 37.53 square meters.
• Now we translate into cubic meters - 37.53 x 0.2 (the thickness of the foam block for partitions is 200 mm) = 7.506 m3.

• It is necessary to calculate the volume of one foam concrete product for internal walls - 0.6 x 0.3 x 0.2 = 0.036 m3.
• We calculate the total number of foam blocks - 7.506 / 0.036 = 209 pieces.

Here you can also save on doorways:

• In total, 5 interior doors are obtained - 5 x 1.3 (opening area) = 6.5 m2.
• Subtract the result from the total area - 37.53 - 6.5 = 31 m2 (rounded up).
• Based on this, we calculate cubic meters - 31 x 0.2 = 6.2 m3.
• We divide by the volume of 1 product known to us - 6.2 / 0.036 \u003d 172 pieces.

As you can see, the savings can be about 40 foam concrete blocks, and if you take into account the savings on load-bearing products, you get a decent amount.