Recalculation of wood area in cubes. Calculation of the cubature of lumber

There is no such building that would do without the use of lumber.

Therefore, it becomes necessary to determine their exact number. You can calculate how many boards are in 1 cube using formulas, or you can use ready-made tables. These tables are called cubes.

Note that coniferous wood products are considered here.

What is cubature

In the general case, this is the volume of a body, expressed in cubic measures.

The cubature of lumber is the volume of lumber, expressed in cubic meters, otherwise - in cubic meters or simply in cubes.

Types of lumber

In this section, we will talk about lumber in the order in which they are received when sawing a log.

Obapol and croaker

For some reason, confusion arises with the definition of these materials: someone claims that they are one and the same, and someone claims that both are made from croaker.

The proposed table will bring complete clarity.


As can be seen from the table, both fields are not used in construction, so we will not consider it further.


The requirements for the slab are normalized in accordance with OST 13-28-74. And this means that the slab is a full-fledged building material.

The slab is used:

  • for subfloor device;
  • roof battens;
  • formwork manufacturing.


Unedged board

It is propylene on two opposite surfaces, called layers. The edges remain uncut, hence the name.

Its standard dimensions are as follows: thickness - 25, 40 and 50 mm; length - 6 m.

The scope is wider than that of the slab.

It is also used for construction:

  • warehouses;
  • utility rooms;
  • temporary fences;
  • canopies.

In addition, it can serve as a base for cladding with clapboard, block house and other finishing materials.


Edged board

It differs from unedged in that it is propylene along the layers and edges.

Used as:

  • roof battens;
  • lathing of walls of frame houses;
  • racks and braces of frame houses;
  • stairs;
  • material for the manufacture of country furniture, etc.


bar

This is sawn timber with a thickness of 100 mm or more with a difference in the width and height of the section by no more than two times. Usually the beam is square in section. The most used timber has a section of 100 × 100 mm and 150 × 150 mm.

Used:

  • in the construction of frame houses in the form of racks and beams;
  • as a material for the outer and inner walls of wooden houses;
  • for stairs, railings, etc.


Bar

It differs from a bar in that the maximum size of its section is 75 mm. Like timber, it is most often made with a square section.

Used for interior work such as device:

  • stairs;
  • railings;
  • window sills;
  • bases for finishing sheathing;
  • roof battens.


How to calculate the number of boards in a cube

Edged board

As is known from a high school course, the volume of a rectangular parallelepiped (and a cut board, a bar and a bar is exactly that) is equal to the product of the lengths of its sides.

Calculated according to formula 1:

where: V – volume; L - length; b - width; h is the height (in our case, the thickness) of the board.

Having calculated the volume in this way, you can easily find the number of boards in a cube.

To do this, you need to divide the unit by the resulting number (formula 2):

where: N - number of pieces, 1 - 1 cu. m, V - volume.

We should not forget that the dimensions of edged materials are given in millimeters, therefore, before calculating them, they must be converted to meters.

Example

There is lumber with the following parameters:

25 × 150 × 6000, where 25 is the thickness; 150 - width; 6000 - length.

Let's calculate the cubic capacity of the board.

To do this, we convert millimeters to meters and substitute the obtained values ​​​​in formula 1:

V = 0.025 × 0.15 × 6 = 0.0225

Substitute the resulting number into formula 2:

N = 1 ÷ 0.0225 = 44.4

The result is always rounded to whole numbers by discarding the decimal part.

Thus, one cube contains 44 whole boards.


Unedged board

Solving the previous problem in this case is more difficult.

The unedged one has a large difference in width on opposite layers, therefore, when calculating the volume, the average width must be substituted into formula 1: these two widths are added and the resulting amount is divided in half.

The measurement result is rounded up to 10 mm, fractions up to 5 mm are not taken into account, and fractions of 5 mm or more are considered as 10 mm.

In addition, the uncut edges prevent the board from being stacked tightly, and various scaling factors are applied to calculate the exact volume.

The calculation technique is not so much complicated as tedious, so it's easier to use the table in the next section.

Grooved board and lining

They differ from each other only in size, so the calculation method for them is the same.

They are mounted according to the tongue and groove system, as shown in the figure.

In this case, the so-called “working” or “visible” width is taken as the width b - the distance from the base of the tongue to the edge of the board (see Fig.). It is this size that should be substituted into formula 1.



Tables of the number of boards in a cube

In order not to calculate the quantity and volume each time, special cubic tables were compiled, in which for each size of material its quantity in one cubic meter is given.

4 meter boards


6 meter boards


4 meter beam


6 meter beam


Unedged material

Due to the large variation in dimensions in length, thickness and width, it is impossible to calculate the exact amount of slab in one cube, so there is no cubic table for it.

Here is a table for converting the storage volume of a slab into a dense one.


In this case, we solve the inverse problem: we determine what actual volume a known amount of slab has.

For this you need:

  1. Disassemble the slab into debarked (which has the thickest end closest to the root of the tree removed) and undebarked.
  2. Sort by length - up to 2 meters and more than 2 meters.
  3. Sort by thickness if necessary.
  4. Put in a bag, alternating thin and thick ends.
  5. Calculate the storage volume of the package.
  6. Select the appropriate coefficient from the table and determine the actual (dense) volume.

Cube for unedged boards.


Cover area calculation

When the main construction is completed, it's time to start finishing work: sheathing the walls and laying clean floors.

To do this, recall formula 1. Calculating the volume of one element, we write the intermediate result - the product:

where S is the area of ​​this element.

Having calculated the quantity using formula 2, we multiply the result obtained by the area.

Video

This video contains data not included in the article.

Content:

The seller and buyer of timber pursue their own interests. In such a rather delicate matter, one must have certain - simple - knowledge. Today everyone has a tool: a calculator in the phone.

What is a cubic meter of edged board

How many edged boards in one cube - Photo

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

Since the fee is charged for the volume in cubic meters, we recall the geometric formula for its definition:

W * H * D = volume.

Everything is in meters.

To find out how many boards are in one cube:

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

where, W- Width, V- 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

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

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

1 edged board 32 mm thick, 200 mm wide and 6 m long(32X200X6000) has volume

  • 0.032 * 0.2 * 6 = 0.0384 cubes

30 boards will have 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 \u003d 1.2 cubes
  • 1.2 - 1.152 = 0.048 cubes

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

The cost may vary depending on the type of wood. Grading decreases with a decrease in quality: the presence of wood defects and deviations from standard sizes. If the floorboard has a curvature, narrower or thinner than the standard by 3-5 mm, it will not work completely. Visual inspection of the lumber is just as important as accurate sizing.

Edged board area covered

To find out how much lumber you need, the calculation of 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, it remains to multiply it by the desired thickness of the board

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

It remains 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.The floorboard and sheathing board "lining" have an overlapping tongue, which is taken into account in the cubature, but is not included in the area to be covered. A couple of boards are needed have in reserve .

Determining the volume of unedged boards

How many unedged boards are in one cubic meter - Photo

Unedged board, that is, not having a rectangular section along the entire length, is much cheaper and is widely used for the installation of various kinds of rough battens, temporary fences.

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

The 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 tightly packed into a bag of the correct shape with further measurement. Further calculation is carried out according to the standard formula for determining the volume. using various coefficients.

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

(Wmax + Wmin) / 2 * (Hmax + Hmin) / 2 * L = volume, m3

where, W- Width, V- Height, D- Length

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

  • 0,96 for softwood
  • 0,95 for deciduous.

Sampling method used to determine the volume of a large batch of 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 to the next control board. The selection of control boards in a separate foot is also practiced. The calculation is made after the loading is completed.

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

Calculation of the amount of timber in one cube - Photo

The beam differs from the edged board only in that all its faces 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 beam size

The volume of one bar

Bar 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 = volume of timber, m3.

To find out how much timber is in one cube

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

where, W- Width, T- thickness, D- Length

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

When buying a beam, the volume must be determined by the piece, since the beam is laid with spacers in the stack. The measurements of such a stack and the calculation of the cubature according to the above formula invariably lead to a significant overestimation of the volume.

Length of 1 cube of timber (and 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 - a face of 180 mm.

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

1 meter of such a beam will have the following volume.

0.18 * 0.18 * 1 = 0.0324 m3.

These calculations may be needed when determining the cost of funds and material.

Construction log volume: how many logs are in one cube?

How many logs in one cube: calculation - Photo

Log buildings are and will be relevant. The determination of the volume of round material depends on the method of its production.

  • Construction log of manual debarking.
  • Construction log, rounded on special machines.

The section of the barrel for trimming by hand has the shape of a slightly truncated cone, so the cylinder volume formula is used, but with some peculiarities.

3.14 * r2 * L = log volume, m3

Here
r- average radius, calculated as (r1+r2)/2, r1 is the radius from one end of the log, r2 is the radius from the other end of the log.
L- log length.
3,14 - constant "Pi".

The rounded log has, of course, a cylindrical shape and is calculated according to 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 a beam.

1 / (3.14*r2 * 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 summarized in a cubature 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 humidity, should be purchased at large sites. A small manufacturer, as a rule, is not allowed there due to the lack of appropriate control over the quality of their products.

High cost and makes you think about their rational use. has always been one of the most expensive. If you actively use it, then it is advisable to know in advance how many boards are in the cube. A table with reference data will allow you to determine the required value. You can use the board cubature calculator, which allows you to change the geometric parameters of other products online, you can calculate the cubic meter yourself. We offer you to get acquainted with the most popular types of materials and the features of their calculation.

Read in the article

Types and types of lumber, its features and scope

Before calculating how many boards are in a cube, you should decide on the type of material that will be used in the construction process or a specific object. Features of processing and appearance of lumber determine its possible area of ​​​​use. We offer you to get acquainted with the most common types and their main purpose.


Edged timber

The beam has a square or rectangular cross section. Its linear parameters usually exceed 100 mm. For manufacturing, the core of the tree is used, which is processed from four sides. The result is lumber of the desired geometry, but without surface finishing. The standard length of the product is usually 6 meters. When deciding how to calculate the cubature, this linear parameter must be taken into account.

Demanded for construction. Given the quality of the surface treatment, in the future an additional one will be required.

edged timber

Planed timber

For the manufacture of planed timber, solid wood is used. The choice is made in favor of logs that do not have defects, with transverse dimensions of more than 150 mm. The most widely used timber with dimensions of 100 × 100; 100×150; 150×150; 150×200 mm. The last standard size is most often made to order and has a higher cost than analogues with smaller geometric parameters.

Planed timber is widely used in the construction and installation of internal partitions. The high quality of the surface makes it possible to refuse to perform additional work.


planed timber

planed block

The cross-sectional shape may be different. Manufacturers offer a bar with a square, rectangular or other sectional shape. The requirements for the aspect ratio of the finished product are established. Their width cannot be twice the thickness. The last linear dimension can reach 100 mm.

Planed products subjected to special processing have a smooth surface. They are widely used in the construction of various, the appearance of which is subject to increased requirements. Actively used in industry.


Edged bar

Unlike planed, edged timber is not subjected to additional finishing. This greatly reduces its cost. It is widely used in the construction and installation of structures intended for the installation of facing material.


Edged board

For such lumber, the thickness can reach 100 mm, and the transverse dimensions in this case should be at least twice as large. During the production process, wood is processed from all sides. As a result, it is possible to provide the necessary geometric accuracy and relative evenness of the surface.

Edged material is used when performing various types of work. The inch board is especially popular, the size of which is numerically equal to 1 inch (25 mm). This thickness is in demand when arranging battens, floors and many other surfaces.

How to calculate a cube? It is enough to multiply the linear parameters to find the volume of one product. Then one cube is divided by the resulting value. This will allow you to find out how many products will be in a cubic meter. Knowing the required number of products and how many of them are in a cube, it is easy to calculate the order volume.

edged board

Floor board

Designed specifically for the device. It has a width of 85÷140 mm with a thickness of 27÷45 mm. The choice of linear parameters of the product is made taking into account the subsequent operational load. An online calculator of boards in a cube will allow you to calculate how much material you need to purchase for a floor covering of a certain area.


floor board

Unedged materials

Unlike edged material, such lumber has a lower cost, since there are partially sawn or unsawn edges (wane) on its surface. Because of this, it is most often used in the manufacture or construction of draft surfaces.


How many boards in a cube: a table with standard sizes

Knowing how many square meters are required, how many boards will be in a cube, depends on the linear dimensions of the selected material. Using special reference books (cubes), you can find the desired amount from the tables without tedious calculations.


How many boards in a cubic meter: the table will allow you to find out without calculation

Reference tables contain information data for lumber of various lengths. Before you find out from the table how many boards are in a cubic meter, you should check all linear parameters, and not just the width and thickness.

The most popular are reference tables for boards with 4 or 6. So, if we talk about how many edged boards 25 by 100 mm in size will be in a cube, you should definitely specify the length. Four-meter - 100 pieces, six-meter - 66 (66.6). Based on this, it is determined how many cubes of lumber are required.

Advice! If it is difficult to find reference tables, use the cubic meters calculator, which will help you perform the necessary calculation in a split second.

Having determined the amount according to the table, it is worth finding out how much the cube of the board weighs. To do this, you need to know the moisture content of the material. To find the answer to the question, you need to multiply the density by the volume, expressed in cubes.


The basic procedure for calculating the number of boards in a cubic meter

Before moving on to basic calculations and learning how to calculate a cube, you should pay attention to the unit of measurement. For timber, the unit of volume is the cubic meter. Often, cubic meters, cubic meters or cubic meters are used as a conventional designation.

Attention! One cubic meter is numerically equal to the volume of a cube whose edges are 1 meter long.

V = L×h×b , where

  • V - the desired volume of the cube, m³;
  • L – product length, m;
  • h – height/thickness of the material, m;
  • b - width, m.

Attention! All linear parameters must be expressed in meters. If dimensions are given in millimeters, each original value must be multiplied by 0.001 to convert to meters.

With the same number of square meters, how many products will be in a cubic meter will depend on the chosen thickness. If the height of the material used is large, then, according to the calculations in the cube, a smaller value will be obtained. By reducing the thickness of the board, you can increase the number of purchased products.

When determining how many boards are needed, it is necessary to take into account the degree of processing of the material, the grade and type of wood that was used for production. For edged and unedged lumber, the calculation will be slightly different. The calculation should be adjusted to take into account the usable area.

When calculating how much trimming material is needed, you should:

  • Determine the linear dimensions of one board;
  • Find the volume of one product;
  • Divide 1 (cube) by the volume of one board to figure out how much will be in one cube. According to the calculations, it may not be an integer value.

To find out how much unedged board you need, you have to take measurements at several points. After that, the desired linear size is averaged, and the found value is subsequently used when performing calculations.


If there are a lot of boards, and their linear dimensions differ, proceeding to the calculations, they sort by length and width. It is desirable that the linear parameters differ by a maximum of 10 cm. Then the height and length of the formed stack are measured. Height is measured in the middle. The result obtained is multiplied by a correction factor, the numerical value of which is 0.07 ÷ 0.09 units. Its value can be found in the cubature reference book.

Board cubic capacity calculator

If you need to perform a calculation, the board cube calculator below will allow you to find the desired value in a matter of seconds.

The construction of a private house, cottage or any other building requires an estimate. It indicates the number of building materials and their cost. There are several methods for performing the corresponding calculations. The board is a common material that is used everywhere. In order to determine how many boards are in a cube, you need to familiarize yourself with the calculation options and the nuances of this process.

How many boards in a cube: varieties of lumber and features of their calculation

The boards that are used in the construction of houses and other structures differ in several ways. First of all, the material from which they are made is taken into account. The technical characteristics of the product depend on the type of wood. Depending on the method of production, these building elements are divided into types:

  • edged;

  • unedged.

The first of them belong to the highest grade and have the correct shape, since all their faces can be processed. In turn, unedged products are most often used for organizing rough flooring, etc. The peculiarity of this material is that its side edges are not processed, they contain bark and have a natural shape. This simplifies the production of unedged boards and affects their cost.

In order to answer the question of how to calculate the cube of the board, you must first decide which of the materials will be used in the construction process. For example, it is easier to calculate the cubature and cost of an edged part, since it has a geometrically correct shape.

For unedged products, there are constant values ​​that are arithmetic averages. A table of boards in a cube in this case is not always suitable, since it takes into account the rounding even of edged lumber.

Separately, it should be said about building materials for fine finishing. This group includes floorboards, lining, block house and products that imitate timber. The design of these finishing parts includes special ribs and grooves necessary for tight connection of individual elements to each other.

Helpful information! When calculating the finishing lumber, you need to focus only on the dimensions of the main part of the board. Thus, the size of the locking joints is not taken into account, only the numerical values ​​​​of the product body are taken for calculation.

Regardless of what type of material is used, a single formula is used to calculate the number of boards in a cube. An exception in this case are unedged products. Their calculation has its own characteristics, because such parts do not have all the faces necessary for the calculation.

Cube volume formula: how many edged boards are in 1 cubic meter

A cube is a geometric figure that consists of 6 equivalent faces. Each of them is a square. To determine the volume of this figure, it is necessary to multiply 3 indicators among themselves:

  • length;

  • width;
  • height.

In order to find out how many boards are in 1 cube, you need to multiply several values. The result is a mathematical expression that looks like this:

V = h x b x L, where:

h is the height of the edged product (m);

b – element width (m);

L is the length of one part (m).

Using this formula, you can determine the volume of 1 element. It is important to remember that when carrying out the calculation, it is necessary to convert the millimeter values ​​\u200b\u200bof the product into meters. For example, in order to determine how many boards 25x150x6000 in a cube, you need to convert the numbers by multiplying them by 0.001. The finished mathematical expression after such a transformation will look like this:

V = 0.025 x 0.15 x 6

The result is that the volume of one piece of wood is 0.0225 cubic meters (m³). Next, it remains to calculate how many pieces of edged boards are contained in 1 cubic meter. There is a simple formula for this. It involves dividing 1 cubic meter by the volume of 1 board, which was obtained using the past mathematical expression. Consider the calculation on an example:

1 m³ / 0.0225 m³ = 44.4

Thus, 1 cubic meter contains approximately (if rounded up) 44 boards. After that, it is already possible to independently determine the amount of material needed for the construction of a particular structure. And also at this stage, you can draw up a general estimate indicating the price of edged boards per cubic meter.

To calculate the cost of 1 edged board, a mathematical expression is used, which involves multiplying the volume of 1 part by the price of a cubic meter. Let's look at an example:

0.0225 x 8200 rubles = 184.5 rubles.

The calculation showed that the cost of 1 product of the cut variety will be approximately 184 rubles. If the cost of 1 part is known, but it is necessary to calculate the price of a board cube, you need to do the reverse manipulation. In this situation, you will need to divide the price for 1 item (184.5) by its volume (0.0225).

Note! Sometimes, especially when buying a small batch of boards, there is confusion with decimal places. In some cases, lumber vendors will specifically quote a value calculated by rounding up to the 3rd number. However, by law, this value is only suitable for large batches of boards. When purchasing several products, it is recommended to round off according to GOST, namely up to 0.000001 m³.

When calculating the number of boards and the cost of lumber per cubic meter, it is desirable to take into account unplanned losses that very often occur during construction. Therefore, it is recommended to buy edged products with a small margin (several pieces).

How many boards in a cube: calculation of unedged lumber

The calculation of the cubature of an unedged board has some nuances, since its shape is not correct. Such material does not have a rectangular section along its entire length, so it is used to organize temporary structures. The lower and upper surfaces of unedged boards must be processed along the entire length. Otherwise, this product is the side part of the log (slab).

To find the volume of unedged lumber in 1 cubic meter, as well as its quantity, there are several methods. It should be noted right away that it is quite difficult to determine how many boards are in one cube when it comes to irregular geometric shapes. Therefore, the initial numbers obtained when calculating unedged parts will be an approximate indicator.

Consider what methods are used to calculate the cubic capacity and the amount of unedged lumber:

  • batch;
  • piece;
  • sampling method.

In the first case, you will need to load the lumber into a package, which must have the correct shape. After bookmarking, it is necessary to measure the necessary indicators. Next, a standard procedure for determining the volume is performed using the values ​​\u200b\u200bobtained when taking measurements. This method is most common for products that do not have clear edges. For example, with it, you can calculate the cubes of a 25x150x6000 board in a cube (unedged).

It is worth noting that in this type of mathematical expression, a special coefficient (for width) is used, which is the arithmetic average. Although this option is not fast, it allows you to answer the question of how to calculate the cube of the board.

The piece method involves the use of numbers corresponding to the arithmetic mean values ​​​​of the height and width of the edged product. These values ​​are calculated in meters.

In order to find the arithmetic mean, you need to measure the board. The minimum width (at the narrowest point) and the maximum are measured. The two scores are then added up and divided in half. After that, the same height manipulation is performed. The numbers obtained during the calculation must be multiplied by each other and by the length of the product.

Let's see how it looks like in the form of a mathematical expression:

(b max + b min) / 2 x (h max + h min) / 2 x L = V

Using such a formula, it will not be difficult to determine the volume of 1 unedged element and answer the question of how to calculate the cubature of the part. After obtaining this value, you can calculate the total number of boards in a cubic meter. For such a calculation, you will need to use a formula similar to the trimmed part (a cubic meter is divided by the volume of the product).

Helpful information ! When buying raw boards, you need to be careful. Sellers should use a factor that affects the reduction in total volume, taking into account future shrinkage. To calculate wet coniferous products, 1 cubic meter must be multiplied by the number 0.96. In turn, the coefficient for hardwood is 0.95.

The last way to determine the volume of lumber and its quantity in 1 cubic meter is the sampling method. It is used in the calculation of large batches of wooden building materials. The essence of this method is that several boards are selected from the total mass. Then the parts are measured and calculated according to the piece by piece method. The resulting numbers are multiplied by the total number of parts in the lot.

How many boards in a cube 50x150x6000 in a cube: payment

As an example, you can take an unedged product with dimensions of 50 by 150 by 6000 mm. First, we convert millimeters to meters. Some people don't know how many millimeters are in 1 meter. To convert, you need to multiply the required number in mm by a factor of 0.001. In finished form (with substituted values), the formula will look like this:

(0.155 + 0.145) / 2 x (0.055 + 0.045) / 2 x 6 = V

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After adding and dividing by 2, we get the arithmetic average of the width and height of the unedged part. Thus, the formula takes on a more understandable, standard form:

0.15 x 0.05 x 6 = 0.045

This is how a calculation is made, the result of which is finding the volume of 1 board. To determine the number of products in 1 cubic meter, the same formula is used as in the case of a trimmed counterpart.

If necessary, you can calculate the area of ​​​​one board. Most often, this is required when the manufacturer indicates the price per square meter, and not per cubic meter. The area formula involves multiplying the width of a part by its length. It is important in this case not to make a mistake and not to forget to convert millimeters to meters.

In order to determine the cost, the same formula is used as in the case of edged lumber. You just need to multiply the volume of 1 part by an amount that corresponds to the total price of the cube. This is how the calculation of cubes in the cube of the board 50x150x6000 is performed.

Calculating the board with an online calculator

Perhaps the easiest way (along with the lumber cube table) to determine the exact value of the volume and number of wooden boards is an online calculator. It is a program with preset algorithms that allow you to calculate all the necessary lumber values. This method makes it possible to calculate not only the edged board, but also other varieties of these products.

Note! In order to avoid the possibility of an error when calculating the material on the online calculator, you should immediately indicate for which board the measurement is used.

The process itself is quite simple. First you need to find a calculator on one of the specialized sites using the search line of the browser. Next, you will need to enter the required indicators in the appropriate cells. The board calculator in the cube will calculate on its own.

This method is popular and allows you to quickly and accurately determine all the necessary lumber values. When using a calculator, it is recommended to check the accuracy of filling several times. In the event of an error, the calculation will be performed incorrectly, which is fraught with serious discrepancies in the final figures.

How many boards in a cube: table (6 meters)and tips for its use

The last method to determine the quantity and cubic capacity of wooden products is to use a special table. This method is very convenient, as it does not require long calculations. All that is needed is simply to find the desired value in the table using the initial data (width, height and length).

In order to quickly find the correct answer to the question of how many boards are in one cube, the table is the best fit. However, experts point out one drawback of this method: the numbers corresponding to the cubic capacity or quantity are often rounded off. Therefore, if you need to perform the most accurate calculation, it is recommended that you do all the calculations yourself.

Edged board volume in a cube:

Board dimensions, mm

Length, mVolume 1 piece, m³
50 to 2006 0,06
30 to 1000,018
20 to 1500,018
30 to 1500,027
20 to 2000,024
30 to 2000,036
25 per 1000,015
40 to 1000,024
25 to 1500,0225
40 to 1500,036
25 to 2000,03
50 to 1000,03
40 to 2000,048
50 to 1500,045
20 to 1000,012

In addition, before starting the search for the desired value, it is advisable to make sure that the length of the lumber matches. The tables can be different, containing information about the cubature of boards with a length of 3, 4 or 6 m. Today, the most common are wooden products, the length of which is 6 meters. How many boards are in one cube? The table that allows you to determine the amount of lumber also uses rounded values.

Do not forget that the board can be made from different types of wood. Therefore, before using the table, it is recommended to make sure that you have selected the required type of lumber.

How many boards in 1 cube: table (6 meters):

Board dimensions, mm

Length, mNumber of pieces in 1 m³

The tabular method is good because it does not require calculations or self-filling of overall and other lumber values ​​​​to get an answer. It is suitable for determining the cubature, and also allows you to answer the question of how many boards are in a cube. The table is ideal for calculating large batches of a product.

Edged board prices per cube: 50x150x6000and other varieties

Today in the construction market you can find many varieties of lumber. All of them are differentiated not only by size, but also by the type of wood from which they were made. And also the cost of these products is influenced by the production technology and their purpose. In order to find out how much a board cube costs, you need to familiarize yourself with all the varieties of these details.

The most popular in the construction of private houses, cottages, as well as other structures is a classic edged board. It can be 1st and 2nd grade. The first option is more expensive, as it has higher technical characteristics and durability.

Helpful information! The price of a 1st grade edged board is approximately 7,500 rubles. for 1 cu. Products that belong to a lower quality group cost about 4-6 thousand rubles. for 1 m³.

The width and height of the boards, as a rule, does not affect their cost. This is due to the fact that in a cubic meter, regardless of the dimensions of wooden lumber, there will be the same number of parts. In the sense that for the same price you will receive 44 edged boards 25x1500x6000 (price per cube: 7500 rubles) or 22 parts 50x150 having the same length.

Separately, it is worth mentioning edged boards made in accordance with the technical specifications (TU). Lumber of this type costs an average of about 7,000 rubles. per cube Such boards are distinguished by good quality characteristics and can be used in the construction of various structures.

Unedged products are cheaper, as they are of lower quality. Their cost is calculated using averaged values. The price of unedged lumber ranges from 4 to 5 thousand rubles. However, they are not recommended for construction. It is better to use better quality lumber, for example, edged board 40x150x6000 (price per cube: 7500) or similar products with other dimensions.

When buying wood lumber, you need to pay attention to some points. For example, the board must be flat. The curvature of the product most often indicates that the technology was violated during its production. Such parts are not used in construction, as they do not have the required quality.

How much does a board cube weigh? When purchasing this building material, its mass should be taken into account. So, for example, a cut board made from dry spruce weighs 450 kg (1 cubic meter). 1 m³ of raw products has a mass of 790 kg. Dry pine has a weight of 470, and raw - 890 kg. This knowledge will be needed when transporting products.

When choosing lumber and its calculation, you must be careful. The board must not have cracks, chips or other defects. Small cracks are allowed, but it is recommended to buy a solid, high-quality product that meets GOST. You should also pay attention to the presence of knots. This is due to the fact that they negatively affect the strength of the wooden part. The choice of calculation method depends on the specific case. If necessary, you can always use the services of specialists who will help you perform the correct calculation and draw up an estimate.

A free calculator for calculating the number of boards and joists needed to lay a floor in a given area.

Calculator Features

The calculator performs the following actions and calculations:

  1. Calculates the area of ​​the room;
  2. Offers the optimal dimensions of boards and a lag for laying the floor;
  3. Calculates the optimal distance between the lags;
  4. Considers the volume of lumber and insulation that can be laid under the floor;
  5. Draws an approximate scheme for laying the future floor.

Features of working with the calculator

For preliminary calculations, it is enough to enter the length and width of the room in the special fields, and then click the "Calculate area" button:

Based on the data you entered, the script calculates the number and dimensions of boards (taking into account the choice of the minimum standard width for butt-laying and proportional thickness), as well as the load-bearing log.

Based on the calculations, the calculator draws an approximate diagram of the future laying of the floor. In the diagram, callouts indicate the length and width of the room, as well as the recommended gap between the lags, which are indicated by a dotted line.

If you enter a larger number in the "Length" field than in the "Width" field, the values ​​will be reversed, taking into account that the length is always the longest side of the room.

If you are not satisfied with the proposed automatically calculated parameters, you can always correct them using the input fields under the drawing:

Here it is possible to switch the direction of laying the floor to the transverse version, and there are also two sections with settings for the parameters of the boards and the log. To complete the calculations, you need to click the "Calculate" button under the input fields.

The results will open in a new browser window:

Script integration into other sites

* Subject to the indication of an active dofollow link to our page.

If you like our script, you can install it on your site *.

In the downloaded archive you will find two files: board.html and board.js. The first contains the complete code of the calculation form and the built-in processing script. In the second, only the script is rendered in case of its external connection.

If you do not plan to externally connect the script, you can simply copy the contents of board.html and paste it on the desired page of your site. Otherwise, you will need to copy only part of the code before the start of the script and uncomment the line for external connection:

P.S. It is allowed to freely copy and quote this article, provided that an open active link to the source is indicated and the authorship of Ruslan Tertyshny is preserved.