Calculate the cube of the wall. Calculation of the cubic capacity of the house. We calculate the volume of concrete for the foundation in the form of a solid slab

Initial data

Step 1: The calculator is designed to calculate any kind of building blocks. First, set the exact dimensions of the building block without taking into account masonry joint. Be careful here: set the length, width and height of the block relative to how the block will lie in the masonry. Next, enter such building parameters as the height of the wall and the total length of the wall along the outer perimeter of the building.

Step 2: Then specify how the blocks are stacked. The thickness of future walls directly depends on these data. This can be a half-block construction (the wall thickness will be equal to the block width) or a whole block (the wall thickness will be equal to the block length). Choose the laying method depending on the designed number of storeys of the building, the type of floors and other structural features.

Step 3: To make the calculation more accurate, it is necessary to take into account the thickness of the masonry joint, consisting of mortar, or glue and other materials. Sometimes the thickness of the horizontal and vertical seams is different.

Step 4: To calculate the masonry mesh, you need to decide how many rows you will lay it in. Data about it can be omitted, leaving the item "Ignore" in the column. Or count it, indicating that it lies through the Nth number of rows.

Step 5: Block weight is an optional parameter. But if you want to calculate the approximate weight finished walls and the load from the walls on the foundation, it is still desirable to indicate it. Price is also an optional parameter. Specify it if you want to calculate the total cost of the blocks.

Step 6: To take into account the gables of the building, as well as windows, doors and additional openings in the calculations, check the appropriate boxes, and set the necessary parameters in the list that appears.

Step 7: After filling in all the fields, click the "Calculate" button. You can print your results or send them by email.

For convenience, various elements buildings are best counted separately. For example, external walls and interior partitions may differ both in height and in the way the blocks are laid. In this case, carry out two independent calculations.

Interpretation of calculation results

Online calculator of building blocks designed to perform calculations building materials necessary for the construction of the walls of houses, garages, utility and other premises. The calculations can take into account the dimensions of the gables of the building, door and window openings, as well as related materials such as mortar and masonry mesh. Be careful when filling in the data, pay special attention to the units of measurement.

When filling out the data, pay attention to Additional information signed Additional Information

Technologies do not stand still, including construction. For the construction of walls, wood was replaced by brick, and today its place is increasingly taken by building blocks obtained artificially, and depending on the raw materials used, may have different characteristics.

With building blocks are popular in the construction of low-rise buildings, and walls of monolithic-frame buildings. Of these, you can not only build external walls, but also be used for internal partitions and interior walls. concrete blocks suitable for the manufacture of a prefabricated foundation for light buildings.

The advantages of building blocks are obvious. With their help, you can build a building in a short time without using special equipment. They have good thermal insulation and the necessary strength. Therefore, the funds spent on insulation will be significantly lower than in brick construction. And if we compare the building blocks with wooden log cabins, then it is not only less additional funds and works, but also a higher durability of the building.

Blocks do not need such a strong vapor barrier as, for example, wood. Given their size and lightness, even the foundation for such a house will cost much less compared to brick and reinforced concrete. The use of a special masonry adhesive increases the thermal insulation of the walls, and makes them more attractive in appearance.

Building blocks can be divided into two types:

• artificial
- they are obtained by mixing concretes of different composition at factories, using special vibroforming machines. The resulting material, depending on the raw material, is distinguished by the necessary strength, density and thermal insulation properties.
• Natural
- are relatively more expensive than those offered by the factory. They are obtained by careful processing, grinding rocks. Most often they are used as decorative finishes facades.

Artificial building blocks include: aerated concrete, foam concrete, expanded clay concrete, polystyrene concrete, sawdust concrete and many others. Each type is used depending on the required qualities, and has both a number of advantages and a number of disadvantages. One species has good thermal insulation performance, but they are somewhat inferior in strength (when compared, for example, aerated concrete and expanded clay concrete). In any case, buildings built using building blocks require less time to build turnkey houses, compared to the same wooden log cabins, which take a long time to finally dry and settle. And only after that you can start final finishing premises.

When building from blocks, interior decoration premises can be produced immediately after construction is completed.

By design features, building blocks are distinguished into:

1. Structural
Used for building bearing walls the buildings. They have high strength, but also high thermal conductivity and high weight. In this regard, during the construction of residential premises, mandatory additional insulation is necessary.
2. Structural and heat-insulating
They are used for the construction of load-bearing walls of low-rise buildings. They have average characteristics, both in terms of strength and thermal insulation qualities. Ideal for seasonal residences.
3. Thermal insulation
They are used for the construction of only self-supporting walls, such as internal partitions and walls of frame buildings, as well as for the insulation of load-bearing walls. They have low thermal conductivity, low weight, but also low strength.

Unfortunately, there is currently no ideal material, which has high rates of all the necessary characteristics at once, such as low thermal conductivity, high strength, low weight and cost. And in each case, it is necessary to choose exactly the material that is most suitable for the planned construction, taking into account the necessary requirements.

The cost of finished walls is approximately equal to 1/3 of the cost of the entire building.

Further presented full list performed calculations with brief description each item. If you did not find the answer to your question, you can contact us at feedback in the right block.

General information on the results of calculations

• Building perimeter
- The total length of all walls taken into account in the calculations.
• About total masonry area
- Square outside walls. Corresponds to the area necessary insulation, if such is provided by the project.
• wall thickness
- The thickness of the finished wall, taking into account the thickness of the mortar joint. May differ slightly from the final result depending on the type of masonry.
• Number of blocks
- The total number of blocks required to build walls according to the given parameters
• About the total weight of the blocks
- Weight excluding mortar and masonry mesh. As well as the total volume, it is necessary to select a delivery option.
• Number of mortar for the entire masonry
- The volume of mortar required for laying all blocks. Volume weight solution may differ depending on the ratio of components and additives introduced.
• Number of rows of blocks including seams
- Depends on the height of the walls, the size of the material used and the thickness of the masonry mortar. Gables not included.
• Number of masonry mesh
- Required amount masonry mesh in meters. It is used to reinforce masonry, increasing the solidity and overall strength of the structure. Pay attention to the number of reinforced rows; by default, the reinforcement of each row is indicated.
• Approximate weight of finished walls
- The weight of the finished walls, taking into account all building blocks, mortar and masonry mesh, but excluding the weight of insulation and cladding. - Load without taking into account the weight of the roof and floors. This parameter is necessary to select the strength characteristics of the foundation.

In order to calculate the material for partitions, you must start a new calculation and specify the length of all partitions only, the thickness of the walls to the floor of the block, as well as other necessary parameters.

An assessment of the volume of premises is quite often required in the production of construction and repair work. In most cases, this is required to clarify the amount of materials needed for repairs, as well as for the selection effective system heating or air conditioning. Quantitative characteristics describing space, as a rule, require some measurements and simple calculations.

1. The simplest case is when you want to determine the volume of a room with a regular rectangular or square shape. Using a tape measure, measure in meters the length and width of the walls, as well as the height of the room. It is most convenient to take measurements along the floor, along the baseboards. Multiply the obtained indicators of length, width, height and you will get the desired volume.

2. If the room has an incorrect or complex shape, the task becomes a little more complicated. Break the area of ​​​​the room into several simple shapes (rectangles, squares, semicircles, and so on) and calculate the area of ​​\u200b\u200beach of them, having previously made measurements. Add up the resulting values, summing the area. Multiply the amount by the height of the room. Measurements must be carried out in the same units, for example, in meters.

3. When carrying out construction works the definition of the volume of the entire structure is determined by the standards. The so-called building volume of the ground part of the building with an attic can be calculated by multiplying the horizontal sectional area along the outer contours at the level of the lower floor. Measure full height buildings from the level of the clean floor to the top of the insulation attic floor. Multiply both numbers.

4. If there are floors of different sizes, determine the total volume of premises in the building by adding the volumes of all parts. In the same way, the volume is determined if the premises have different outlines and designs.

5. Separately calculate the volumes of verandas, bay windows, vestibules and other auxiliary elements structures (with the exception of covered and open balconies). Include this data in the total volume of all rooms in the building. Thus, you can easily find the volume of any room or building, the calculations are quite simple, try and be careful.

Room volume formula

Measure everything necessary distances in meters. The volume of many three-dimensional figures is easy to calculate using the appropriate formulas. However, all values ​​substituted into the formulas must be measured in meters. Thus, before substituting values ​​into the formula, make sure that they are all measured in meters, or that you have converted other units of measure to meters.

• 1 mm = 0.001 m
• 1 cm = 0.01 m
• 1 km = 1000 m

Before purchasing any building material, it is necessary to determine as accurately as possible right amount, otherwise you can lose some amount due to the remaining surplus or the need for additional purchases, as well as the unaccounted for the possibility of fraud by unscrupulous sellers. Timber, logs, boards and similar wood products, as you know, are sold in cubic meters, which means that you need to know in all subtleties the calculations for determining the volume of these materials, as well as converting the required number of pieces into cubes and back. And in the case of purchasing timber for building a house, when calculating the required amount of this building material, it is also necessary to take into account the design and features of the future building.

Basic calculations - volume determination and conversion from pieces to cubes and vice versa

Calculating the cubic capacity of timber, boards and similar lumber is very simple. To do this, you need to know the thickness, width (height) and length of the product. And, as you know from a school textbook on geometry, you need to multiply these dimensions:

V = T ∙ H ∙ L, where

V is the volume of timber, m 3;

T is the thickness;

H - width;

L is the length.

Before calculating, dimensions should be given in one unit of measurement: mm, cm or m. It is better in meters, so that later you do not have to convert from mm 3 or cm 3 to m 3.

Beam size table

For example, let's calculate the cubic capacity of a bar 150x200. These dimensions, as you know, are indicated in mm. That is, the thickness of the product is 0.15 m, and the width is 0.2 m. The standard length of timber and boards is 6 m (sometimes also indicated in mm - 6000). Or maybe another. But for example, let's take exactly 6 m. Then the volume of this lumber:

0.15 ∙ 0.2 ∙ 6 \u003d 0.18 m 3.

Now you can convert the required amount (in pieces) of this product into cubes. Let's say you need 49 pieces:

0.18 ∙ 49 \u003d 8.82 m 3.

Knowing the volume of one product, you can also calculate the cube of the timber, that is, determine how many of its units (pieces) are in 1 m 3. To do this, you need to divide 1 cube by the cubic capacity of one product already calculated or taken from the reference tables (in this example, 0.18 m 3):

1 / 0.18 \u003d 5.55555 ... pcs.

In the same way, the amount of this type of timber is calculated for any volume.

The nuances of calculations - how not to make mistakes and not let yourself be deceived

As follows from the above methodology and calculation examples, it is very easy to calculate the required volume of timber in pieces or cubic meters. However, one should always remember that in 1 cubic meter there is not an integer number of these products. For the example given in the example with dimensions of 150x200 and a length of 6 m - 5.55555 ... pcs. Unscrupulous, most often retailers of timber cleverly take advantage of this.

For example, you need 1 cube of this material from the example. The seller, of course, releases 5 products, but takes the amount as for a whole cube. The overpayment will be the cost of half a beam.

And let's say that the same 49 bars from the example are needed to build a house. And if the seller considers according to the following scheme, then you will have to significantly overpay for the timber received:

• 1 cube - 5 products 150x200 6 m long;
• 49/5 = 9.8 cubes payable.

This is a divorce the purest water for 5 units of timber. They are superfluous and not needed, however, they will be paid, but not received. Above, in the calculation examples, the data of 49 products have already been translated into cubes - this is 8.82 m 3. That is, a "particularly enterprising" seller will deceive an inattentive buyer by:

9.8 - 8.82 \u003d 0.98 m 3 timber,

which is 0.98 / 0.18 \u003d 5.44444 ... pcs. this lumber (0.18 - the volume of one product calculated above).

Therefore, it would be most correct to calculate in advance exactly the number of units (pieces) of the material, and only then, using these data and the dimensions of the timber or board, calculate their actual cubic capacity.

That is, in the case of purchasing one cubic meter in the above example, you must first decide how many bars you really need to take - 5 or 6. And then we consider their cubic capacity:

0.15 ∙ 0.2 ∙ 6 ∙ 5 (or 6 pcs.) \u003d 0.9 (or 1.08) m 3.

And for 49 units of this timber:

0.15 ∙ 0.2 ∙ 6 ∙ 49 \u003d 8.82 m 3.

Then you will have to pay exactly for these 0.9 (1.08) or 8.82 cubic meters, having received exactly 5 (6) or 49 products. Moreover, both the quantity in pieces and the volume in m 3 must be indicated in the invoice for the timber sold by the seller.

Other features of calculating the cubature of lumber

Another one important feature, which you should know for the correct calculation of the cubic capacity of the timber or boards when they are purchased. The actual length of lumber usually always slightly exceeds the standard or declared by the manufacturer of this product. So, instead of 6 m, the average length of the considered timber, as a rule, is 6.05 m. This is due to the fact that the ends of the lumber are not processed after it has been cut, because of which they may turn out to be uneven, go at angles, and be different or simply be dirty. Of course, these 5 cm do not need to be paid. But some cunning sellers, although quite rarely, still try to take into account even this when calculating cubic meters, which is pure deception.

And regarding the calculations for grooved and profiled timber. The presence of spikes, grooves, and other protruding or turned places should not be embarrassing. The calculation of the cubic capacity of such materials is no different from determining the volume of ordinary products that are even on all sides. For grooved and profiled lumber, the rule applies that only the main part (working width) of the product is measured and taken into account, and all structurally necessary and / or decorative elements are not included in the calculations. This provision applies to absolutely all types of timber.

Purchase of large volumes of materials - calculation of storage and dense cubic meters

When to Purchase a large number of timber, their cubic capacity is calculated somewhat differently than discussed above. For example, a timber and a board are needed for the construction of an impressive spacious house, as well as various other outbuildings near it. At the same time, the necessary lumber, for sure, will be different sizes in cross section and length. To measure and calculate each type of required material with similar purchase volumes is an occupation that can take more than one day.

For such cases, there is a specific calculation method. It is based on two important concepts:

1. 1. Dense cubic meter of wood. This is the name of the volume occupied only by wood and not having voids in it, as well as gaps. It is determined by measuring individual timber pieces, and then subsequent calculation of their total cubic capacity.
2. 2. Foldable cubic meter. This is the name of the volume occupied by the lumber stacked as tightly as possible and having voids, as well as gaps between individual wood products. It is determined by measuring the stack, and then multiplying the dimensions of the latter. Moreover, in such a package, the main amount of material should have approximately the same length, and the remaining products may be shorter, but not longer. It is allowed to have short lumber in piles, which should be tightly stacked one after another.

In order to quickly calculate the large volume of required purchased lumber, which is already prepared and stored in the form of a stack, the latter is first measured, and then its cubic capacity is calculated. This will calculate the folding cubature. Then its value must be multiplied by a special conversion factor. The result is the volume of only wood ( dense cubic meter), that is, exactly those materials that are bought and will be paid for.

The value of the conversion factor is regulated by a number of standards for lumber: GOST 6782.2-75, 6782.1-75, 6564-84, OST 13-24-86 and others. For timber and boards, depending on their moisture content and the type of wood from which they are made, it is in the range of 0.74–0.82.

We consider the required cubic capacity of timber for building a house

• Height external walls measured from the foundation level. Let's denote it as H.
• The height of the internal partition walls, if any, and should be made of timber.
• The length of the outer and internal walls.
• The number and length of the bars used in rafter system, as floor beams and, as well as in its other structures - if it is provided for by the project.

Then we select the thickness of the material for each of the above structural elements. For external and internal load-bearing walls, depending on the purpose of the house being built and the region where it is being built. For non-bearing partitions - at your own discretion. The plinth (lowest) crown of the outer walls is usually slightly thicker than the rest of the timber for them. For the remaining elements of the structure, the thickness of the material is selected based on the conditions of its operation, as well as the required strength of the structures in which it is used. In a well-designed project, by the way, the thickness of the beam used for walls, the basement crown, and other building structures should already be indicated.

Now only pure arithmetic remains. First, we calculate the perimeter of the house - we add up the length of all its external wall structures. For a simple rectangular or square structure, you just need to add up its width and length, and multiply the resulting value by 2. Then we calculate the cubature of the base crown:

V C = T C ∙ Z C ∙ I, where

V C - total cubic capacity of basement lumber, m 3;

T C - thickness of the basement, m;

Z C - its width (height), m;

I - the perimeter of the outer walls, m.

Calculate the remaining height of the outer walls, m:

h \u003d H - Z Ts, where

H - total height, m.

We calculate the area of ​​​​external wall structures without a basement crown, m 2:

If the thickness of the material of the basement crown is the same as that of the entire wall, then the area of ​​\u200b\u200bthe latter, m 2:

We calculate the area of ​​\u200b\u200bthe inner walls, the thickness of the lumber in which is the same as that of the outer ones, m 2:

S В1 = H В ∙ L В1 , where

H B - the height of the internal walls, m;

L B1 - the total (total) length of the internal walls, the material thickness of which is the same as that of the external ones, m.

We calculate the area of ​​\u200b\u200bthe internal walls, the thickness of the timber in which is different, m 2:

S B2 = H B ∙ L B2 , where

L B2 - the total length of the internal walls, the material thickness of which is different, m.

We calculate the cubature of the main lumber - for external walls and internal partitions from the same timber, m 3:

V S = (S Н + S В1) ∙ Z S , where

Z S - selected thickness of the product, m.

We determine the volume of material for internal partitions from another timber, m 3:

V B = S B2 ∙ Z B, where

Z B - selected material thickness for these partitions, m.

The results obtained (V C, V S and V B) are divided by the length of the purchased lumber and its selected width (height). Get the amount of material in pieces. We round this value to an integer value, and then we recalculate V Ts, V S and V V, as described in the second chapter.

To save on lumber, you should calculate the total areas of window, door and other openings for the corresponding walls. Then their values ​​\u200b\u200bshould be subtracted from S H, S B1 and S B2, respectively. After that, we calculate V S and V B using the same formulas. Then we increase the obtained values ​​​​by 10-20% - so that there is a margin just in case.

The cubic capacity of the timber for the rest of the elements of the house in which it is used is calculated even more simply. Its total length is calculated, which we multiply by the thickness and width selected for the material.