Starting construction or renovation wooden house, you have to purchase various boards, while the buyer knows the total length, but the seller sells lumber by volume. This article will help you correctly determine the number of any boards in one cubic meter, which will allow you to avoid purchasing too many large quantity lumber.

How to calculate the volume of edged boards

The volume of one board is determined in the same way that was used at school - by multiplying the length by the width and thickness. Or multiplying the width by the length and thickness. It doesn't matter in what order you multiply the board sizes, the result will always be the same. For example, a standard “fifty” board has the following dimensions:

• length 6 meters;
• width 20 centimeters;
• thickness 5 centimeters.

To facilitate multiplication, it is necessary to convert all dimensions to common units - meters or centimeters. It’s easier to carry out these calculations in meters, then you don’t have to divide the resulting number by a million to convert it to cubic meters.

1. As a result of multiplication, we obtain the volume of one board 0.06 cubic meters.
2. After this, divide one by 0.06 and get the number of boards in one cubic meter.
3. We get the number 16.6666, which must be rounded to the nearest whole, that is, to 16, which will be the number of “fifty” boards in one cubic meter. It is always necessary to round down, because some of the boards may be slightly wider or thicker, they may not be laid tightly, or several boards from the package may be twisted. If all the boards turn out to be normal, then fractions can also be taken into account; this is especially true for thick timber.

Table of standard volume values

For your convenience, we have created a table with the most common sizes of boards and timber, as well as their quantity in one cubic meter

Size in millimeters	Volume of one board cubic m.	Number of boards in one cubic meter

There is no point in making the same calculations several times if the source data does not change. A rounded log with a diameter of 20 cm and a length of 6 meters will always have the same volume, regardless of who is doing the counting and in which city. Only the formula V=πr²l gives the correct answer. Therefore, the volume of one central bank will always be V=3.14×(0.1)²×6=0.1884 m³. In practice, in order to eliminate the time of carrying out standard calculations, cubatures are used. Such useful and informative tables are created for various types lumber. They help to save time and find out the cubic capacity of round timber, boards, central fiber boards, and timber.

The name of this construction guide is due to the fact that the volume is physical quantity measured in cubic meters (or cubic metres). For a simpler explanation, they say “cubature”, accordingly, the table was called “cubature”. This is an ordered matrix that contains data on the volume of one product for different initial parameters. The base column contains sections, and the row contains the length (molding) of the material. The user just needs to find the number located in the cell at their intersection.

Let's consider specific example- round timber cube. It was approved in 1975, called GOST 2708-75, the main parameters are diameter (in cm) and length (in meters). Using the table is very simple: for example, you need to determine the V of one log with a diameter of 20 cm and a length of 5 m. At the intersection of the corresponding row and column, we find the number 0.19 m³. A similar cubature for round timber exists according to a different standard - ISO 4480-83. Directories are very detailed in increments of 0.1 m, as well as more general, where the length is taken in 0.5 m increments.

Little secrets

Using the cubeturner itself is not difficult, but main nuance– correct data. Round timber is not a cylinder, but a truncated cone, in which the lower and upper cuts are different. One of them may be 26 cm, and the other 18. The table assumes a clear answer for a specific section.

Various sources suggest doing it in two ways: calculate the average value and take the volume from the reference book for it, or take the size of the upper cut as the main section. But if the tables were compiled according to certain standards, then they must be used in accordance with the accompanying instructions. For the cubature GOST 2708-75, the diameter of the top cut of the log is taken. Why is the moment of initial data so important? Because with a length of 5 meters for Ø18 cm we get 0.156 m³, and for Ø26 cm – 0.32 m³, which is actually 2 times more.

Another nuance is the correct cubatures. If complex formulas for truncated cones were used in the GOST 2708-75 table, calculations were carried out, and the results were rounded to thousandths, then modern companies, who make up their own cubatures, take “liberties”. For example, instead of 0.156 m³ there is already the number 0.16 m³. Quite often, websites on the Internet contain frankly erroneous cube-turners, in which the volume of a log 5 meters long with a diameter of 18 cm is indicated not as 0.156 m³, but as 0.165 m³. If an enterprise uses such directories, implementing round wood consumers, then it makes a profit by actually deceiving customers. After all, the difference on 1 product is significant: 0.165-0.156 = 0.009 or almost 0.01 m³.

The main problem of round timber is the different cross-section. Sellers offer solutions to settlement issues in the following ways:

• calculating the volume of each unit and summing the obtained values;
• storage method;
• finding the average diameter;
• method based on wood density.

1. It must be said right away that the first one gives the correct results. the above options. Only calculating the volume of each log and then adding up the numbers guarantees that the buyer will pay for the timber that he receives from the company. If the length is the same, then it is enough to find the cross-sectional areas of all the trunks, add them up, and then multiply by the length (in meters).

2. Storage method.

It is assumed that the stored round timber occupies a part of the space shaped like a rectangular parallelepiped. In this case, the total volume is found by multiplying the length, width and height of the figure. Considering that there are voids between the folded trunks, 20% is subtracted from the resulting cubic capacity.

The downside is accepting as an indisputable fact that the tree occupies 80% of the total space. After all, it may well happen that the beams are folded inaccurately, thereby the percentage of voids is much greater.

3. Density based method.

In this case, you need to know the mass of the forest and the density of the wood. The cubic capacity is easily found by dividing the first number by the second. But the result will be very inaccurate, since wood of the same type has different densities. The indicator depends on the degree of maturity and humidity.

4. Average method.

If the trunks of harvested trees are appearance almost identical, then choose any 3 of them. The diameters are measured and then the average is found. Next, using the cubature, the parameter for 1 product is determined and multiplied by required quantity. Let the results show: 25, 27, 26 cm, then Ø26 cm is considered average, since (25+26+27)/3=26 cm.

Considering the disadvantages of the considered methods, the only the right way The calculation of cubic capacity can be considered by finding the volume of each log using a cubic meter GOST 2708-75 or ISO 4480-83 and summing up the data obtained.

When constructing a cottage or house, the master, by necessity, performs a lot various tasks. He thinks through all the construction processes and draws up the necessary estimates for each of them. Calculate the correct quantity necessary materials not easy. This requires knowledge of mathematics. He must know: how many boards are in 1 cube, how many, and so on. If he has such knowledge, then that’s great! He is a real master!

But for an ignorant person, “how many boards are in a cube” is an abstract concept. In order for him to understand it, he must know exactly what it is Construction Materials made of wood. What are they, how are they measured? Without knowing this, he will not be able to adapt to these calculations.

Edged or tongue-and-groove, as well as other types of lumber

The first thing you need to understand is that it is not so important from which forest exactly this or that material was made. The boards may not be the same, but their calculations will be completely identical. Let them have different varieties, various sizes, the calculation is still carried out according to the same principle. It's still wood and will be measured the same way! It can only determine how many boards there are in 1 cube will be different each time. Regardless of whether it is edged or tongue-and-groove, cylindered, etc. the calculation will be the same.

Non-grooved lumber- different timber, edged materials, their non-edged counterparts, this is the case when their cubic capacity is calculated completely differently! These products have grooves and tenons. They are intended for joining between forest units. Such products include:

• blockhouses;
• floor material;
• imitation of various timber.

When purchasing such a grooved one, you should take into account the circumstance. When calculating cubic capacity, you need to take only the working width of the beam. The spike is not taken into account here. And when calculating the cubic capacity of a blockhouse, which can imitate a log, one should take into account its thickness, which it has at its highest point.

Examples of calculations using formulas for the volume of 1 m3 of timber, as well as price comparison

Any specialist has known since school exactly how to calculate the cubic capacity or how many boards are in 1 cube. To do this, you need to find the product of 3 quantities: height, length, width. The same method is used to calculate the cubic capacity of a unit. When making calculations, it is more convenient to immediately convert the parameters into the value “Meter”.

For example, the cubic capacity of a unit of material having a length of 6 m and a cross-section of 150x25 is calculated as follows: 0.15 m x 0.025 m x 6 m;

The formula we will calculate is this: V= L*h*b (where L – length, h – height, b – width)

The calculation results in 0.0225 m3. This is the cubic capacity of one product. If you want to know the cost, then 0.0225 must be multiplied by the cost of 1 cubic meter. After calculations, it turns out that if we miss it, the cube will cost 6,500 rubles. And the price of one of them will be 146 rubles. 25 kopecks Here, for the ignorant people, lies a little trick of the sellers.

Typically, cubic capacity can be rounded to 0.023. This means that lumber will cost the buyer 149 rubles. 50 kopecks Sometimes unscrupulous sellers can round up a cubic capacity with a size of 150x50 mm to approximately 0.05 m3. But if all calculations are performed correctly from the very beginning, it turns out that with correct calculation the result is only 0.045 m3.

It seems, so what, someone will say! The numbers are small, but the result is stunning! Such rounding will involuntarily lead only to the fact that the unit price will already be 325 rubles. instead of 292 rub. 50 kopecks And these calculations are carried out taking into account that the price of a cube is 6,500 rubles.

In addition, you also need to know and take into account that boards with a nominal length of 6 m actually have a length of 6.1-6.2 m. This should not be taken into account when selling lumber! Sometimes customers may ask to know how many boards are in a cube. This applies to acquisition more boards

Everything can be clearly seen from the example of purchasing boards with dimensions of 150x25 mm, where their number in a cube is 44.4. But still, most often only 44 boards are considered a cube. And if calculated correctly, this amount is listed as 0.99 m3. In reality, it turns out to be an overpayment for 1 cubic meter. It is approximately 1% of its initial cost. It will look like this: what instead of 6435 rub. for 1 cubic meter the cost will be 6,500 rubles.

The volume of unedged timber is calculated in a completely different way. If you buy one of them, then measure its thickness and length as accurately as with edged lumber. But its width is taken as average. That is, it is between the smallest and the largest. Example: at one end its width is 30 cm, and at the other about 15 cm, then to calculate the cubic capacity this parameter will be 22-23 cm.

If you need to find out the volumes of a large number of timber or determine how many boards there will be in volume, they should be laid out in stacks. But so that the widest of them does not differ from the narrowest by more than 10 cm. In such a stack, their length should be the same. But this is only approximately! After this, you need to use a tape measure to measure the height of the stack and its width. These measurements are taken somewhere in the middle, the same applies to length.

The resulting calculation result should be multiplied by a coefficient. It ranges from 0.07 to 0.09. It depends on the air gap, which is between the material. When performing calculations, the larger the gap, the lower the coefficient taken. If it has the same dimensions, then you can determine the number of boards in the cube.

By the way, for such calculations there are special tables in builders’ textbooks. Similar tables exist for almost all lumber starting from and ending with. They indicate the cubic capacity of common types of timber or other types. And calculating the volume of boards, for example, for a fence, is not difficult! You can use the above formula yourself!

Performing calculations according to the table for timber of a standard length of 6 meters

We will determine how many pieces of boards are in a cubic volume using a special table

Size	Volume of 1 piece	Pieces per 1 m³	m² to 1 m³
20×100×6000 mm	0.012 m³	83 pcs.	50 m²
20×120×6000 mm	0.0144 m³	69 pcs.	50 m²
20×150×6000 mm	0.018 m³	55 pcs.	50 m²
20×180×6000 mm	0.0216 m³	46 pcs.	50 m²
20×200×6000 mm	0.024 m³	41 pcs.	50 m²
20×250×6000 mm	0.03 m³	33 pcs.	50 m²
25×100×6000 mm	0.015 m³	67 pcs.	40 m²
25×120×6000 mm	0.018 m³	55 pcs.	40 m²
25×150×6000 mm	0.0225 m³	44 pcs.	40 m²
25×180×6000 mm	0.027 m³	37 pcs.	40 m²
25×200×6000 mm	0.03 m³	33 pcs.	40 m²
25×250×6000 mm	0.0375 m³	26 pcs.	40 m²
30×100×6000 mm	0.018 m³	55 pcs.	33 m²
30×120×6000 mm	0.0216 m³	46 pcs.	33 m²
30×150×6000 mm	0.027 m³	37 pcs.	33 m²
30×180×6000 mm	0.0324 m³	30 pcs.	33 m²
30×200×6000 mm	0.036 m³	27 pcs.	33 m²
30×250×6000 mm	0.045 m³	22 pcs.	33 m²
32×100×6000 mm	0.0192 m³	52 pcs.	31 m²
32×120×6000 mm	0.023 m³	43 pcs.	31 m²
32×150×6000 mm	0.0288 m³	34 pcs.	31 m²
32×180×6000 mm	0.0346 m³	28 pcs.	31 m²
32×200×6000 mm	0.0384 m³	26 pcs.	31 m²
32×250×6000 mm	0.048 m³	20 pcs.	31 m²
40×100×6000 mm	0.024 m³	41 pcs.	25 m²
40×120×6000 mm	0.0288 m³	34 pcs.	25 m²
40×150×6000 mm	0.036 m³	27 pcs.	25 m²
40×180×6000 mm	0.0432 m³	23 pcs.	25 m²
40×200×6000 mm	0.048 m³	20 pcs.	25 m²
40×250×6000 mm	0.06 m³	16 pcs.	25 m²
50×100×6000 mm	0.03 m³	33 pcs.	20 m²
50×120×6000 mm	0.036 m³	27 pcs.	20 m²
50×150×6000 mm	0.045 m³	22 pcs.	20 m²
50×180×6000 mm	0.054 m³	18 pcs.	20 m²
50×200×6000 mm	0.06 m³	16 pcs.	20 m²
50×250×6000 mm	0.075 m³	13 pcs.	20 m²

Video on calculating lumber in a cube using formulas and tables

This article will detail information that will allow you to most correctly calculate the amount of lumber per cubic meter wooden board. Today, edged and unedged boards are the most popular lumber. Manufacturers produce numerous variations of this material in sizes from 16x8 mm to 250x100 mm.

In this case, the width of the board is always at least twice the thickness; if the aspect ratio changes, the material is already called timber. It is customary to measure edged boards in cubic meters, so to determine the cost of work you need to learn how to determine the weight of a cube of edged boards. Fortunately, there are ready-made tables and formulas that will allow you to quickly cope with this task.

As a rule, most novice builders do not think about the question “how much is a cubic meter of boards?” » , but simply use the table below. However, we strongly recommend that you learn how to calculate cubic capacity yourself; this will greatly simplify your work, and only in this case can you consider yourself a professional.

If you compare an edged board with an unedged or one-sided edged one, on the surface of the first there are no places where there used to be bark; this parameter is called wane. A small amount of wane is usually allowed, but the less the better. So, in terms of geometry, such a board is guaranteed to be a rectangular parallelepiped. This figure has three parameters: thickness, width, length, which are usually expressed by the letters a, b, l. These indicators are enough to know how to calculate the cubic capacity of a board in a few seconds.

It is important to know that there is an official standard according to which boards can only be produced with parameter “a” equal to 22, 25, 30, 40, 50, 100 mm. There are also other lumbers that are made from others by planing or sawing. Their width varies from 100 to 250 mm, pitch 50 mm. The length of such boards can be 3, 4, 6 m.

Formula for calculating cubic capacity

Thickness * Width * Length

(a*b*l)

Once you know all the values, you can quickly answer the question of how to calculate the cubic capacity of the board. Before making calculations, you need to convert all values ​​to meters. For example, we have a board measuring 25 mm x 10 cm x 4 m, when converted to meters it turns out 0.025, 0.1, 4. Now we multiply these parameters:

0.025 * 0.1 * 4 = 0.01

Now we divide one by the result obtained and find out how to calculate the cube of boards, and more precisely the quantity boards in a cube of wood.

1 / 0.01 = 100

Thus, a cubic meter will contain 100 boards of the specified sizes. Now you can easily answer the question of how to calculate the cube of boards, but you need to learn how to calculate the amount of lumber needed to complete the work.

What is an inch board and how to calculate its cubic capacity

Inch gauge is just the name of one of the board sizes; there are also forties, fives, beams, this allows the builder to quickly figure out which board we're talking about. To find out how many inch boards are in a cube, you need to make calculations that are already familiar to us, as a result of which you will get 66 pieces for a board width of 10 cm, and 44 pieces for a board width of 15 cm. As a rule, one cubic meter is enough to cover an area of ​​40 square meters.

As already mentioned, there is also an unedged board, which is obtained as a result of longitudinal sawing of logs without processing on the sides. So this is to find the answer to the question how many boards are there in a cube? edged boards usually somewhat more complicated than in the first case. The fact is that for unedged lumber, only the width and length are accurately indicated, but the width can vary. Much depends on what part of the tree a particular board is cut from. If you are wondering how to calculate the cubic capacity of an unedged board, you need to first think about the task at hand.

For example, you may need to sheathe a building, in which case you will first find out the finishing area and multiply it by the thickness of the sheathing, this will allow you to calculate the required volume of material. Let's describe this situation in numbers:

How many unedged boards 25 mm thick might be needed for the cladding of a rectangular building 10 * 5 meters and 3 meters high?

We calculate the entire area for finishing; to do this, we multiply the perimeter of the building by its height: (10 + 10 + 5 + 5) * 3 = 90 square meters. Now we multiply the resulting value by the thickness of the material: 90 * 0.025 (convert millimeters to meters) = 2.25 cubic meters.

As you can see, in this case the width of an individual cladding element practically does not matter, since this does not affect the overall cubic capacity. However, sometimes it may still be useful for you to know the average dimensions of the board, which will allow you to approximately find out how many unedged boards are in a cube. These approximate data are shown in the table.

Content:

The seller and buyer of timber pursue their own interests. This is enough delicate matter you need to have certain - simple - knowledge. Today everyone has a tool: a calculator on their phone.

What is a cubic meter of edged boards?

How many edged boards are in one cube - Photo

Edged board- lumber with cleanly cut edges, without bark residues. The width of the edged board is at least twice the thickness.

Since the fee is charged for volume in cubic meters, let us recall the geometric formula for its determination:

W * H * D = volume.

Everything is calculated in meters

To find out how many boards are in one cube:

1 / (W * H * D) = number of boards in 1m3 (cube)

Where, Sh- Width, IN- Height, D- Length

Translation: 1mm = 0.001m, 10mm = 0.01m, 100mm = 0.1m

Below is a table of some types of edged boards and their volume

Board dimensions	Volume of one board	Boards in 1m3 (cube)
20×100×6000	0.012 m³	83 pcs.
20×120×6000	0.0144 m³	69 pcs.
20×150×6000	0.018 m³	55 pcs.
20×180×6000	0.0216 m³	46 pcs.
20×200×6000	0.024 m³	41 pcs.
20×250×6000	0.03 m³	33 pcs.
25×100×6000	0.015 m³	67 pcs.
25×120×6000	0.018 m³	55 pcs.
25×150×6000	0.0225 m³	44 pcs.
25×180×6000	0.027 m³	37 pcs.
25×200×6000	0.03 m³	33 pcs.
25×250×6000	0.0375 m³	26 pcs.
30×100×6000	0.018 m³	55 pcs.
30×120×6000	0.0216 m³	46 pcs.
30×150×6000	0.027 m³	37 pcs.
30×180×6000	0.0324 m³	30 pcs.
30×200×6000	0.036 m³	27 pcs.
30×250×6000	0.045 m³	22 pcs.
32×100×6000	0.0192 m³	52 pcs.
32×120×6000	0.023 m³	43 pcs.
32×150×6000	0.0288 m³	34 pcs.
32×180×6000	0.0346 m³	28 pcs.
32×200×6000	0.0384 m³	26 pcs.
32×250×6000	0.048 m³	20 pcs.
40×100×6000	0.024 m³	41 pcs.
40×120×6000	0.0288 m³	34 pcs.
40×150×6000	0.036 m³	27 pcs.
40×180×6000	0.0432 m³	23 pcs.
40×200×6000	0.048 m³	20 pcs.
40×250×6000	0.06 m³	16 pcs.
50×100×6000	0.03 m³	33 pcs.
50×120×6000	0.036 m³	27 pcs.
50×150×6000	0.045 m³	22 pcs.
50×180×6000	0.054 m³	18 pcs.
50×200×6000	0.06 m³	16 pcs.
50×250×6000	0.075 m³	13 pcs.

When purchasing lumber in small quantities, you can get confused with decimal places, namely rounding. An experienced seller will round the resulting number to the 3rd decimal place. An experienced buyer will round by GOST y - up to 0.000001 cubic meters and will remind the seller that up to 0.001 cubic meters. meters are rounded only batch of boards. The most common quantity - from several boards to 2-4 cubic meters - is not made up into a batch. In order not to offend either one or the other, round to 4 decimal places.

Then the resulting volume is multiplied by the cost of 1 m3 (cube). And this is where the number of decimal places can significantly affect costs.

1 edged board 32 mm thick, 200 mm wide and 6 m long(32Х200Х6000) has volume

• 0.032 * 0.2 * 6 = 0.0384 cube

30 boards will have the volume

• 0.0384 * 30 = 1.152 cubes

If the seller rounds the volume of 1 board to 0.04 cubic meters, he will additionally receive income:

• 0.04 * 30 = 1.2 cubes
• 1.2 - 1.152 = 0.048 cubic meters

Selling these 0.048 "air" cubes makes it easier on the buyer's wallet.

Cost may vary depending on the type of wood. The grade decreases with a decrease in quality: the presence of wood defects and deviations from standard sizes. If batten has a curvature, is narrower or thinner than the standard by 3-5 mm, it will not be completely useful. Visual control lumber is as important as accurately determining the volume.

Covered area of ​​edged board

To find out how much lumber you need, calculating the board in a cube will help you. The above formula is based on the definition of area

W * D = area.

Having calculated the covered area, all that remains is to multiply it by required thickness boards

W * D * 0.022; 0.025; 0.032; 0.04 m and so on.

All that remains is to see how many boards are in one cube and determine the required number. Just in case, print or memorize the table above.

You also need to take into account the future cutting of the material.Flooring and lining boards have an overlapping tongue and groove, which is taken into account in cubic capacity, but is not included in the covered area. A couple of boards are needed have in reserve .

Determining the volume of an unedged board

How many unedged boards are in one cubic meter - Photo

Unedged board , that is, not having rectangular section along the entire length, is significantly cheaper and is widely used for the device various kinds rough sheathing, temporary fencing.

It is important to understand that the upper and lower surfaces of such a board must be sawn along the entire length. If one face is not sawn, then it is already croaker. The definition of cubic capacity of such lumber differs precisely in that it does not have the correct geometric shape.

Current standards establish several ways to account for unedged material, and it is practically impossible to calculate exactly how many boards are in 1 cube.

1. Batch.
2. Piece by piece.
3. Sampling method.

In batch In this case, the boards are packed tightly into the bag correct form with further measurements. Further calculations are made using the standard formula for determining volume. Using different coefficients.

Piece measurement made using average measurements of height and width. The largest and smallest dimensions in meters are added and divided in half.

(Wmax + Wmin)/2 * (Bmax+ Bmin)/2 * D = volume, m3

Where, Sh- Width, IN- Height, D- Length

If it is visually clear that the wood is fresh and, accordingly, damp (humidity above 20%), then the seller is obliged to reduce overall volume multiplying the resulting cubic capacity by the coefficient:

• 0,96 for coniferous species
• 0,95 for deciduous.

Sampling method used to determine the volume of a large batch unedged lumber. When loading, for example, into the body of a vehicle, every fifth, tenth or twentieth board is measured using the second method.

The resulting volume is multiplied by five, ten, twenty. Loading continues until the next control board. It is also practiced to select control boards into a separate pile. The count is made after loading is completed.

Calculating the volume of timber: how much timber is in a cube?

Calculation of the amount of timber in one cube - Photo

A timber differs from an edged board only in that all its edges or two opposite ones have the same size: more than 0.05 m in thickness and 0.013 m in width. The formula for determining its volume is standard

R timber size	Volume of one beam	Timber in 1m3 (cube)
100×100×6000	0.06 m³	16 pcs.
100×150×6000	0.09 m³	11 pcs.
150×150×6000	0.135 m³	7 pcs.
100×180×6000	0.108 m³	9 pcs.
150×180×6000	0.162 m³	6 pcs.
180×180×6000	0.1944 m³	5 pieces.
100×200×6000	0.12 m³	8 pcs.
150×200×6000	0.18 m³	5.5 pcs.
180×200×6000	0.216 m³	4.5 pcs.
200×200×6000	0.24 m³	4 things.
250×200×6000	0.3 m³	3 pcs.

W * T * D = timber volume, m3.

To find out how much timber is in one cube

1 / (W * T * D) = amount of timber in 1 m3 (cube)

Where, Sh- Width, T- thickness, D- Length

Translation: 1mm = 0.001m, 10mm=0.01m, 100mm=0.1m

When purchasing timber, the volume must be determined individually, since the timber in the stack is laid with spacers. Measurements of such a stack and calculation of cubic capacity using the given formula invariably lead to a significant overestimation of the volume.

Length of 1 cube of timber (as well as any edged lumber) in meters is determined by dividing the unit by thickness and width. For example, you need to find out how much timber is in one cube - the edge is 180 mm.

1 / (0.18 * 0.18) = 30 meters 87 cm.

1 meter of such timber will have the following volume.

0.18 * 0.18 * 1 = 0.0324 m3.

These calculations may be needed when determining the costs of funds and materials.

Volume of construction logs: how many logs are in one cube?

How many logs are in one cube: calculation - Photo

Log structures are and will be relevant. Determination of volume round material depends on the method of obtaining it.

• Hand-barked construction logs.
• Construction logs, rounded on special machines.

The trunk section for manual trimming has a weak shape truncated cone, therefore the formula for the volume of a cylinder is applied, but with some features.

3.14 * r 2 * L = log volume, m3

Here
r- averaged radius, calculated as (r 1 +r 2)/2, r 1 - radius at one end of the log, r 2 - radius at the other end of the log.
L- log length.
3,14 - constant "Pi".

A rounded log naturally has cylindrical shape and is calculated using the above formula. But here the radius is measured at any end once. Determining the number of logs in 1 cube is determined similarly to timber.

1 / (3.14 * r 2 * L) = Number of logs in 1m3 (cube)

Blanks for construction logs are measured in the same way.

The radius (diameter divided in half) is measured without taking into account the thickness of the tree bark. In practice, manual calculations are not carried out. They use special tables compiled in a cubic book. They are also available in electronic form.

In conclusion, it should be noted that lumber for critical work, standard in size, wood species and moisture content, should be purchased at large sites. Small producers, as a rule, are not allowed there due to the lack of appropriate control over the quality of their products.