All project cards on our website have detailed description And approximate cost finished house. But you can calculate the timber for a house or bathhouse using a calculator by changing the thickness of the walls or making other adjustments. To use the calculator, select the following options:

• type of building (house or bathhouse);
• complete set (turnkey or shrink);
• log house project (select from our catalogue);
• beam section (90x140 mm, 140x140 mm or 190x140 mm);
• foundation design (pile-screw, strip, etc.);
• ceiling height (number of wall crowns);
• type of interior decoration (lining, block house, etc.);
• type of external finishing (lining, block house, etc.);
• insulation of floors and roofs (knauf, rockwool of various thicknesses).

You also need to fill in the fields: type of windows, roofing material and other data. Our calculator for calculating timber will help you solve the main construction issue - how much will the finished log house cost?

It doesn't matter if you found a decent one construction company or you decide to make a house from timber with your own hands - at some stage you just need to calculate the amount of lumber required for its construction. What do you need to know for this? Firstly, how much and what kind of timber is needed for the house. Secondly, how much is there approximately in one cubic meter. And only then you can carry out a simple calculation of the cost of construction and even draw up an approximate estimate.

We calculate the amount (consumption) of material

Let us immediately make a reservation that all the calculations below are approximate. More accurate volumes of material can be determined based on specific project. The cubic capacity of lumber for timber walls can be calculated as follows:

• calculate the perimeter of the house;
• multiply it by the height of the floor;
• multiply the resulting value by the thickness of the timber;
• As a result, we have the number of cubes for the construction of one floor.

If except external walls The presence of internal partitions (also made of timber) is also implied, then they are additionally taken into account. If desired, the material can be calculated not only by volume, but also in pieces, dividing the total volume by pieces.

Let's give a specific example: you need to build a small cottage 5 × 7 m with a simple attic and one partition. The ceiling height is 3 m. In this case, a beam with a cross-section, for example, 150 × 150 mm will be used, and the pediment will also be laid out of it.

Our calculations will look like this:

• perimeter of the house taking into account the length of the partition: (5 + 7) × 2 + 5 = 33 m;
• volume of the walls of the first floor: 33 × 3 × 0.15 ≈ 15 cubic meters. m.;
• We consider the cubic capacity of the timber for the pediment to be approximately half the material required for two walls 5 m long and 3 m high: 5 × 3 × 0.15 = 2.25 cubic meters. m.

In total, approximately 17.25 cubic meters will be spent on the walls. m, or, taking into account the 20% reserve, about 20 cubic meters. m. But it should be understood that we did not take into account, for example, floor beams made of laminated veneer lumber (regular or profiled), as well as other design features. Therefore, you can safely add 5 cubes. As a result of such rough calculations, it turns out that the construction will take approximately 25 cubic meters. (Window and door openings, on the contrary, will reduce the need for lumber.)

How much timber is in a cube

Simple calculations allow you not only to calculate the cubic capacity per house, but also to determine almost the exact number of beams. This is easy to do: just know the required volume of lumber and the volume of the piece to divide one value by the other. Here is a table showing the most common section sizes for a material length of 6 meters.

Beam dimensions

When deciding on them, you need to proceed from economic feasibility. It's about mostly about the thickness of the walls and the thermal conductivity characteristics of the material. Let's consider this in two variations: a summer (country) house and a building for permanent residence.

Thickness and width

The width of the timber should concern the developer only if permanent residence is planned, and even then not always - after all, any wooden wall can be insulated with effective thermal insulation, thereby avoiding losses for “street heating”. For a summer house, it is quite possible to use a section of 100 × 100 mm. Using ordinary unplaned material, you will still have to resolve issues with façade cladding and interior decoration, dealing, for the most part, with the problems of the aesthetics of the result. But for permanent residence it is better to use profiled timber with a width of 150 mm. In this case, you will still have to insulate the walls. As for the thickness, everything is simpler: it just determines the number of beams needed to build the walls. But, meanwhile, this also affects the number of seams between the crowns. To summarize the above:

• thickness and width of timber for country house practically does not matter (if seasonal accommodation during the warm season);
• For permanent residence, you can choose a larger width, but you will still have to insulate the walls. Or you can save on cubic capacity by relying on high-quality insulation - it will be cheaper and more effective in terms of reducing heat losses.

So to really build warm house without insulation, the thickness of its walls for the Moscow region should be about half a meter. The same effect will be achieved when using 150 × 150 timber and 10–15 cm of thermal insulation.

We draw your attention to the fact that not all manufacturers and sellers of lumber are honest with their customers: you can often encounter an underestimation of the declared cross-section. For example, a 150 × 200 beam actually has a cross-section of 140 × 190 or even less. Be sure to check the actual parameters before purchasing! This will help you avoid getting into trouble, save money and nerves!

Estimate

Before deciding on the choice of builders, start monitoring proposals. To determine the most economically feasible option, ask various competing firms for their estimates for the selected standard or individual project, which includes all costs: the cost of building materials, and fees for all types of implementation construction work.

Regular companies offer such estimates for free. It is noteworthy that for different companies, the total amounts for the same buildings can differ not only by 10–20%, but also several times. It is advisable to have on hand the most detailed list of works and materials to implement your idea - this is the only way you can avoid additional, unforeseen expenses along the way.

If desired, the estimate can be drawn up independently: by calculating the consumption of materials, multiplying the results by average prices (in total these will be the costs of building materials) and adding on top approximately 50–100% of this amount to pay for the work. Such an approximate calculation can be used to analyze offers from specialized companies.

The calculation technology will differ depending on the amount of timber in the batch. For a small quantity it is very simple: if all the material has the same dimensions, you must first multiply the cross-sectional area (it will be equal to the width multiplied by the height of the section) of one beam by its length. Thus, you find the number of cubic meters of one unit of lumber, after which you multiply the resulting number by the total number of units - this will be the exact cubic capacity of the units of timber you purchased.

It is very difficult for a non-specialist in the field of woodworking to figure out how to calculate the cubic capacity of timber or other wooden moldings. And this is important, since the sale of timber, boards, bars at sawmills and warehouse stores is carried out precisely in cubic meters x, which is what many traders take advantage of, earning money for their pockets.

There are at least two enough simple ways calculations that any non-specialist can master and feel confident when buying lumber for the home.

Calculations for small quantities

As mentioned above, here you just need to multiply the cross-sectional area of ​​one beam by its length. For example, 15 units of timber with a cross-section of 150 x 150 mm and a length of 6 meters were purchased. Find the cross-sectional area of ​​the beam - 0.15 x 0.15 = 0.0225 square meters, after which we multiply this area by 6 and get 0.135 cubic meters. - that’s exactly how much one beam has. After this, we multiply the resulting number by 15 (the number of units of timber) and get 2.025 - the total cubic capacity of the purchased timber.

In this very simple and accessible way, you can calculate not a large number of timber and other lumber.

It is also necessary to remember that there are special tables - cubatures, which will minimize the use of the calculator and greatly simplify the calculations:

— timber 0.10 x 0.10 x 6 m – 0.060 cubic meters. – 16.67 pieces per cubic meter.
— beam 0.10 x 0.15 x 6 m – 0.090 cubic meters. – 11.11 pieces per cubic meter.
— timber 0.15 x 0.15 x 6 m – 0.135 cubic meters. – 07.41 pieces per cubic meter.
— timber 0.10 x 0.20 x 6 m – 0.120 cubic meters. – 08.33 pieces per cubic meter.
— timber 0.15 x 0.20 x 6 m – 0.180 cubic meters. – 05.56 pieces per cubic meter.
— timber 0.20 x 0.20 x 6 m – 0.240 cubic meters. – 04.17 pieces per cubic meter.

— timber 0.10 x 0.10 x 7 m – 0.070 cubic meters. – 14.28 pieces per cubic meter.
— timber 0.10 x 0.15 x 7 m – 0.105 cubic meters. – 09.52 pieces per cubic meter.
— timber 0.15 x 0.15 x 7 m – 0.1575 cubic meters. – 06.35 pieces per cubic meter.
— timber 0.10 x 0.20 x 7 m – 0.140 cubic meters. – 07.14 pieces per cubic meter.
— timber 0.15 x 0.20 x 7 m – 0.210 cubic meters. – 04.76 pieces per cubic meter.
— timber 0.20 x 0.20 x 7 m – 0.280 cubic meters. – 03.57 pieces per cubic meter.

There are times when you need to buy a large amount of timber for your home, and it can be of different lengths and cross-sectional sizes.

Measuring and calculating each beam with such volumes is not a one-day task.

There is a calculation methodology for such cases, but first we need to understand the concepts of cubic meter dense wood and folding, which exist in forest commodity science.

Cubic meter of dense wood

A cubic meter of dense wood is the volume of pure wood obtained by measuring a single timber, excluding voids between the timber and other lumber.

Folded cubic meter

A folded cubic meter is dimensions stacks of timber, including voids between the timber.

To find the number of folded cubic meters, we stack the timber as tightly as possible, and the length of the stack should not be greater than the length of the main amount of lumber. Joining of short beams is allowed.

Upon completion, we measure the overall length, height and width of the resulting one or more stacks. When multiplying them, we get the folded cubic capacity of your timber, from which, using a special conversion factor, we get the cubic capacity of dense wood, for which you pay money.

The value of the conversion factor for lumber is regulated by a number of state standards (GOST 6564-84, GOST 6782.1-75, GOST 6782.2-75, GOST 13-24-86) and for timber is from 0.74 to 0.82 - depending on the moisture content of the timber and the rock from which it is made.

Wood has always been the most popular material for the construction of houses and baths. Nowadays, the demand for wood remains high. In order not to spend extra money, you need to correctly calculate how much timber it is worth purchasing.

What are the difficulties in calculating the volume of timber?

At the time of preparation, before the start of construction, it is not easy to calculate required amount timber. The volume is calculated in cubic meters, it is at this point that difficulties begin. It is difficult for the buyer to understand the correct calculation of cubic capacity. It is necessary to calculate so that during construction work it is not necessary to purchase additional quantities of timber. After all, it will be a shame if, in the midst of construction work, there are not enough boards. Again you will have to run around the market or companies in search of the missing part, and spend your money on delivery. Or, after construction is completed, you will have to think about where to place the remaining material.

timber

If you look at it, there is nothing complicated about it. Let's take the following values ​​as an example.

When calculating, it turned out that 30 boards were required, 6 meters long, 50 millimeters thick, and 200 millimeters wide. All data needs to be multiplied. To do this, all units must be converted into one measurement unit - meter. It turns out that the width of the board is 0.20 meters, the thickness of the board is 0.05 meters. We multiply: width x length x thickness x quantity = 0.20 x 6 x 0.05 x 30 = 1.8 cubic meters.

If the buyer knows how many cubes of lumber are required, he can find out how many boards are contained in a cubic meter. Let's calculate how many pieces are in one cubic meter if the lumber is 200 millimeters wide, 50 millimeters thick, and 6 meters long. All quantities must be divided. Volume/width/thickness/length=1/0.20/0.05/6=16.666.

To quickly calculate, you can use the table. Before calculating the cubic capacity of the timber, you need to find out what parameters it will have.

Beam width (mm)	Beam thickness (mm)	Beam length (m)	Number of cubic meters in one beam	Quantity of timber in one cubic meter (pcs)

From the table it is clear that in a cubic meter the number of units of timber depends on the dimensions of length, thickness, width. Therefore, in one cubic meter, changing the dimensions, we get different quantities timber.

Subtleties in calculation

In order to use your funds economically and rationally, you need to calculate the number of cubic meters as accurately as possible. But when purchasing, do not take much in reserve, about five to ten percent more, because the timber may turn out to be defective, during operation it may be twisted, and other unforeseen situations may also occur.

No matter the volume of work, you always need to take different ones. For the construction of walls, only one is suitable, on rafter system completely different ones are used. Therefore, you need to carefully plan the design of your house or bathhouse. Using tables or a formula, you should calculate the quantity and required dimensions.

How to independently calculate the cubic capacity of timber for a house

For example, consider the option of a small country house one-story house for summer stay. It was decided to build a house six by six meters with a ceiling height of three meters and make one six-meter partition. Let's calculate the cubic capacity of timber for a house with these parameters. If the house will be used only during the summer season, it is worth purchasing timber with a cross-section of 100 x 100 millimeters. When planning year-round living, it is necessary to make walls from thicker material, the width of which will be at least 150 millimeters.

Calculation required volume timber for the house:

• perimeter: (length + width) x 2 + partition = (6 + 6) x 2 + 6 = 30 meters;
• volume of the walls of the house: (perimeter x timber thickness x wall height) = 30 x 0.1 x 3 = 9 cubic meters for summer house. Or 30 x 0.15 x 3 = 13.5 cubic meters for a house with winter living;
• gables: (width x timber thickness x height) = 6 x 0.1 x 3 = 1.8 cubes required for a summer house. And 6 x 3 x 0.15 = 2.7 cubic meters for living in a house all year round.
• Add up the resulting results and add to them 20% of the total volume, for reserve. (9 + 1.8) + 20% = 10.8 + 2.16 = 12.92 cubic meters and (13.5 + 2.7) + 20% = 16.2 + 3.24 = 19.44 meters cubic.

How to calculate the cubic capacity of timber for a bathhouse

Recently, the fashion for holidays outside the city has returned. Young families with children are increasingly purchasing garden plots. Many people wonder how to build it with their own hands and how to calculate the amount of lumber for a bathhouse. If you understand all the subtleties and moments, then there is nothing complicated.

The most popular 4 x 6 meters. It is better to make it from natural timber. When starting construction, you need to decide on the exact amount of lumber. For external walls use 250 x 130 mm, on internal partitions 130 x 95 mm. Let's calculate:

• The perimeter of a bath of this size is 5500 x 3500 millimeters.
• Each wall requires 21 timber. This is calculated taking into account the size of the floor and the thickness of the ceiling.
• The log house has four walls. It turns out (6 x 2) + (4 x 2) = 20 meters. Converting to millimeters, it turns out to be 20,000.
• We need to find the total length of the beams. For this, the number of beams x length = 21 x 20000 = 420 meters. Converting to millimeters, it turns out 420000.
• Multiplying the resulting amount by the size of the timber, we get 420 x 250 x 130 = 13.65 cubic meters.

To calculate the required amount of timber for the partitions, use the same description with the only difference being that a different size of timber is required, measuring 95 x 130 millimeters. The cubic capacity for partitions is also calculated. For interior walls a beam of smaller thickness is used.

For large volumes

How to calculate the cubic capacity of timber for big house? In this case, lumber of different lengths, widths, and thicknesses will be required. It will be easier to calculate not the volume of wood (dense), but to use the calculation of the “folded cubic meter”. In the first case, the results are used when measuring each beam separately, without voids. In the second case, all the lumber is stacked, joining beams of different sizes together so that they are the same length. When everything is sorted and evenly stacked, measure the dimensions (width, length, height). The results obtained are multiplied. Now - how to find out the cubic capacity of a dense beam. To do this, the resulting result of the folded cubic capacity should be multiplied by a special coefficient.

Calculation of crowns

In order to find out the required number of crowns in a log house, you need to divide the height of the house by the height of the beam (working). Let's calculate the cubic capacity of the timber for a house measuring 9 x 9 meters with one cut. For example, we use a beam profiled 140 x 190 millimeters; we need to calculate the number of crowns at a height of 2.5 meters.

Calculation: 2500/130 = 19.23. Rounding up, it turns out that 19 crowns are needed for this height. The length of one crown is 9 meters; you need to calculate how many linear meters there are in one crown, including overcuts. Let's calculate how many linear meters in lower crown. To do this, you need to add up all sides 9 + 9 + 9 + 9 + 9 = 45 meters. To calculate the total number of linear meters in a given house, you need to multiply the length of one crown by the number of crowns. It turns out, 19 x 45 = 855 linear meters. Considering the zero crown, you need to add it to the total quantity so that there is a row offset. 2.5 x 9 = 22.5 linear meters of crown halves. 855 + 22.5 = 877.5 m.p., this includes door and window openings.

How to correctly calculate the cubic capacity of profiled timber? To do this, multiply the resulting length of the crowns by the height of the beam and multiply by the thickness of the profiled beam = 877.5 x 140 x 190 = 23.34 cubic meters will be required for a house measuring 9 x 9 meters. When calculating timber loss, it is imperative to take into account approximately 7% of total number, for trimming and sawing.

Advantages of a wooden house built using timber

• No need for internal and exterior decoration Houses. The walls are even and smooth. They look beautiful.
• Moisture does not penetrate the seams located between the crowns. Moisture does not collect on the walls and rot does not appear.
• After a while, after the log house has shrinked, there is no need to caulk.
• The timber has a tight connection with a lock, which protects against blowing.
• Almost no cracks appear and are not deformed during shrinkage.
• Natural material, environmentally friendly.
• Does not require long assembly, assembles quickly, like a construction set.
• The houses have a beautiful aesthetic appearance.
• The house is easy to care for; there is practically no dust collecting on the walls.
• Possibility to paint the house any color.

Calculation of timber for a house is necessary in order to determine the required amount of lumber for the construction of a rafter system, implementation formwork work and floor coverings of a construction site. Its correct calculation is especially important when building cottages from laminated or sawn timber.

How to calculate the amount of timber per house?

In order to correctly navigate the needs of lumber, it is necessary to make a construction project indicating exact dimensions, on which the length of the beam depends. Regarding its thickness, it is important to consider the following factors:

• for a private house or bathhouse, timber with a cross section of 200x200 mm is suitable;
• for seasonal construction it is possible to use wood with dimensions of 100x100 mm or 150x150 mm.

Based on the fact that the cost of wood building material indicated in cubic meters to calculate exact quantity pieces of logs in 1 cubic meter, you need to make a simple calculation:

1m3/Z/W/L, where

• Z - board width;
• W - board thickness;
• L is the length of the board.

The design of the house involves calculating the required volume of ceiling and floor beams, determining lumber for the rafter system, external walls, gables, and internal partitions.

Often in construction, ceiling and floor beams with a section of 100x150 mm using steps from 0.7 to 1 meter. In order to determine their quantity, you must use the formula:

• Ld is the length of the house;
• Ls is the length of the applied step.

Taking into account the fact that lumber is sold by the supplier in cubic meters, calculating the cubic capacity of a timber involves multiplying its cross-sectional area and linear length.

Calculation of timber for external walls and load-bearing partitions involves determining the area and thickness of the walls. Multiplying these parameters will give the total volume of timber required for the construction of the specified structural elements.

Timber cubic capacity calculator

To accurately calculate the cubic capacity of lumber for a rafter system, the use of special arithmetic algorithms will be required. The beam calculation calculator will greatly simplify the task. Correct determination of the required building material guarantees the reliability of the construction of the building structure and savings in financial costs.

The program will allow you to calculate timber online by entering initial data. By changing the specified parameters, you can compare several projects and choose the most profitable one from a financial point of view. By processing the individual parameters of a house project, the calculator will make the most accurate calculation, eliminating the risk of overpaying for excess material. It is important to consider the possible percentage of defects, which is about 5% of the total volume of lumber.