Cubes to pieces calculator. How to calculate the required volume of the board? How to calculate the cube of an unedged board

Content:

The seller and buyer of timber pursue their own interests. It's enough like this 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

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 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 inspection of lumber is as important as precise definition 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 a rectangular cross-section along the entire length, is significantly cheaper and is widely used for constructing various types of rough sheathing and 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 tightly placed in a bag of the correct shape 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 the total volume by 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 of unedged lumber. When loading, for example, into a truck 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 stack. 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

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.

A section of a trunk for manual trimming has the shape of a slightly truncated cone, so the formula for the volume of a cylinder is used, 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 a 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 producer, as a rule, is not allowed there due to the lack of appropriate control over the quality of products.

Before purchasing floorboards, you need to calculate how many cubes of lumber are needed to construct a certain structure. Wherein exact calculation can be done using a regular calculator, knowing the area of ​​the room and the thickness of the board. Such skills will be useful to you not only in order to calculate the volume of lumber for flooring, but also if you decide to build a house, because wood products are used to construct various structures.

Since the price of all lumber when sold is charged per cubic meter, it is important to be able to calculate the need for this particular unit of measurement. This way, not only the number of boards is calculated, but also other lumber, for example, timber, slats, etc. The thing is that products with the same cross-section may differ in length. Therefore, after determining the volume, you can understand how many floorboards there will be in one cube.

It is important to know: when purchasing boards made from valuable wood, products are sold individually. The thing is that the price of such coatings is too high, and when calculating in cubes there is a small error.

When calculating, it is better to use a regular calculator. This way you can get a more accurate result and take into account all the nuances future design Houses. Although if you need to find out how many cubes of boards, for example, 50 mm thick, will be needed to construct a floor, then you can use online calculator. He can perform such a simple calculation correctly. However, it is always a good idea to be able to count the amount of lumber by hand.

When building a house or laying a floor, the calculations are carried out in the same order:

1. First you need to calculate the total volume of lumber in cubes. Knowing the moisture content of the wood, you can determine the weight of the entire material. This will help you decide which product delivery method to choose.

Advice: when ordering a carrier, it is better to indicate an inflated weight (10-15% more). This way you won’t have problems with the load, because the wood moisture content stated by the manufacturer may be a little more or less.

1. Next, knowing the dimensions of the boards, you need to calculate the volume of one element. Then you can find out how many products will be in the cube. Multiplying this number by the number of cubes, you get total number floorboards for your floor design.

However, such a simple calculation is applicable for edged elements, because they are processed on all sides and when they are stacked, there are practically no gaps left. To calculate how many cubes of unedged boards are needed for a floor, you will have to use a correction factor, because due to the untreated sides of the product, too many gaps will remain when stacked.

Calculation example

Let’s assume that in your house you want to cover a room with dimensions of 5x6 m with a 50 mm thick floorboard. We calculate the volume of lumber and the number of products in the following sequence:

• Find the area of ​​the room: 6x5=30 m².
• Since we decided to use a board with a thickness of 50 mm or 0.05 m, the lag step can be 1 meter.
• Knowing the thickness of the element and the area of ​​the room, we obtain the volume of lumber: 30 m² x 0.05 m = 1.5 m³.
• Now using a calculator, you can calculate how many floorboards you will need. To do this, knowing the dimensions of the floorboard, we calculate its volume: 2m x 0.05 m x 0.13 m = 0.013 m³. Now we divide the total volume of lumber by the resulting number for an element with a thickness of 50 mm: 1.5: 0.013 = 115 boards.

Thus, using a regular calculator, you can calculate the need for other lumber for building a house: paneling, timber, slats.

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When starting construction, any House master one day he is faced with the need to purchase boards. And this is where the fun begins. Having calculated the required quadrature from the width and length, the beginner grabs his head - what to do? After all, such material in construction markets is sold by volume, not by area. Today we will try to figure out how many boards are in a cube (a table of average values ​​will also be provided by us) and how to make all the calculations ourselves. Also at the end of the article there will be an online calculator that will allow you to perform all the necessary calculations without any problems.

It is important to know not only the size of the lumber, but also its volume

Everyone understands that the shape and size of the lumber will determine how many cubic meters will be needed for a particular construction. But first you need to understand what types and types of material can be found. The main ones can be identified:

• Edged timber;
• Planed timber;
• Planed block;
• Edged block;
• Edged and floor boards;
• Unedged materials.

Each of these types has its own characteristics and is used in its own area. For example, there is no way to build a frame without it, but covering a wall with it is the height of irrationality. To do this, we will now consider each of these types separately.

Edged timber and its areas of application

Edged timber is used in cases where appearance Aesthetics are not that important. It may have cracks that appear during the drying process after processing. It is made by sawing out the central part from an ordinary log, and only after that it undergoes minimal drying. Although such lumber is considered expensive, it is still cheaper than planed products.

Planed timber: what is its difference from edged timber

The differences here are fundamental. If for the production of the previous version no preparation of the log is required, then for planed it is first dried, and only after that it goes to the sawmill. The surface of this product is smooth and polished. This type of timber can even become a good decorative element. Simply put, if it is necessary to erect walls for finishing, purchase edged timber, but planed does not require finishing. It can simply be varnished. If we talk about strength, it is less for a planed product.

Planed timber - what is its difference from timber

At their core, these are the same thing, the only difference is in size. The timber has a lower rib height, which means it is not suitable for constructing the frames of buildings or residential buildings. More often this material is used for decorative purposes. It also finds application in the installation of frames for interior decoration or reinforcing lintels of various wooden panels. The difference between edged and planed timber and the same types of timber is the same.

Edged and floorboards: their features and differences

The differences between these lumber are also noticeable at first glance. The edged board is not planed. It has an even shape but, at the same time, is in no way suitable for finishing. In contrast, the floor has three smoothly processed edges (except for the lower wide one) and often has a groove on one side and a tenon on the other on the narrow sides. This is done to connect them more tightly to each other, as well as to reduce loads and eliminate deformation of the floor during operation.

Unedged materials - what are they?

These are the cheapest products. When sawing a log, only two opposite sides are processed. Thus, the edges of the boards are uneven. More often, such lumber is used for rough construction.

How many boards per cubic meter: table of standard sizes

Some ask interest Ask- how much square meters cubed. In fact, it is impossible to answer it! After all, in order to determine this, you need to at least know the thickness of the board. Without this parameter, no calculations will be possible. Let's try to understand how to calculate cubic capacity.

This does not present any great difficulties, but it requires care. We need to understand how many boards are in a cube. And to do this you need to calculate the cubic capacity of one of them by size. For example, a board with a cross section of 1000x250 mm and a length of 4 m. Then the calculations, after converting the units of measurement into meters, will be as follows: 0.1 × 0.025 × 4 = 0.01 m 3. This will be the answer to the question of how to calculate the cubic capacity of the board.

How many boards are in a cube: table of average values

For example, there are boards with certain sizes. How to calculate a cube of such lumber by the number of boards? You can use the following table:

It is important to know! To calculate how many square meters are in a cubic meter, you need to know all the dimensions of the board. Without information about length, width and thickness, nothing will work.

Average weights at different humidity levels

It turns out that one cube of ash will be much heavier than the same volume of linden. This should be kept in mind when planning your transportation.

How to correctly calculate the amount of material

Let's look at how to correctly calculate how many pieces of boards there will be in one cubic meter. This is done according to the following formula:

1 m 3 / (L × h × b) = N pieces , Where

• L – length of the board;
• h - width;
• b – thickness.

As you can see, the calculations are not at all complicated.

Helpful information! If they say that an inch board is needed, its size will be as follows: width - 75-250 mm, length - 2000-6000 mm, but the thickness is always standard - 25 mm. This size name can often be heard in construction markets.

Board cubic capacity calculator or how to make calculations easier

The algorithm itself for how to calculate a cubic meter by quantity is probably now clear. But there is not always a desire to engage in various calculations. And it’s quite easy to make a mistake here. Now we will tell you how to calculate cubeboards without making complex calculations.

For such cases, there are special programs called cubic meter calculators. Why are they convenient? The main advantage of such programs is their accuracy. The calculator for calculating a board in a cube is devoid of the human factor, which eliminates the possibility of errors in the calculation process. Another rather weighty argument in its favor is the speed of calculations. You just need to enter the correct data in the appropriate fields and click on the “calculate” button. Nothing more is required from the user. The online calculator of boards in a cube will instantly give the result by quantity.

Construction of a private house, cottage or any other building requires drawing up an estimate. It indicates the quantity of building materials and their cost. There are several methods that allow you to carry out 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: types of lumber and features of their calculation

The boards used in the construction of houses and other structures differ according to several criteria. 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 production method data building elements divided into types:

• edged;

• unedged.

The first of them are of the highest grade and have the correct shape, since all their faces can be processed. In turn, unedged products are most often used to organize 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 its cost.

In order to answer the question of how to calculate the cube of a board, you must first decide which material will be used during the construction process. For example, it is easier to calculate the cubic capacity and cost of a trimmed part, since it has a geometrically correct shape.

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

It is worth mentioning separately building materials for finishing. This group includes lining, block house and products that imitate timber. The design of these finishing parts includes special ribs and grooves necessary for tightly connecting the individual elements to each other.

Helpful information! When calculating finished lumber, you need to focus only on the dimensions of the main part of the board. Thus, the size of the castle connections is not taken into account; only numeric values product body.

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

Formula for the volume of a cube: how many edged boards are in 1 cubic meter

Cube is geometric figure, which consists of 6 equal faces. Each of them is a square. To determine the volume of a given figure, you need to multiply 3 indicators together:

• 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 – height of the edged product (m);

b – element width (m);

L – length of one part (m).

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

V = 0.025 x 0.15 x 6

As a result, it turns out that the volume of one wooden part equal to 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 previous mathematical expression. Let's look at the calculation using an example:

1 m³ / 0.0225 m³ = 44.4

Thus, 1 cubic meter contains approximately (if rounded) 44 boards. After this, you can independently determine the amount of material required for the construction of a specific 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 implies multiplying the volume of 1 part by the price per cubic meter. Let's look at an example:

0.0225 x 8200 rub. = 184.5 rub.

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

Note! Sometimes, especially when purchasing a small batch of boards, confusion occurs with decimal places. In some cases, lumber sellers specifically post prices calculated by rounding to the 3rd number. However, according to the law, this value is only suitable for large quantities of boards. When purchasing several products, it is recommended to round according to GOST, namely to 0.000001 m³.

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

How many boards in a cube: calculation of unedged lumber

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

There are several methods for finding the volume of unedged lumber in 1 cubic meter, as well as its quantity. It’s worth noting right away that it’s quite difficult to determine how many boards are in one cube if we're talking about about wrong geometric shapes. Therefore, the initial numbers obtained when calculating unedged parts will represent an approximate indicator.

Let's consider what methods are used to calculate the cubic capacity and quantity of unedged lumber:

• batch;
• piece;
• sampling method.

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

It is worth noting that in mathematical expression of this type, a special coefficient is applied (for width), which represents the average arithmetic number. 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 average values ​​of the height and width of the edged product. These values ​​are calculated in meters.

In order to find the arithmetic average, it is necessary to measure the board. The minimum width (at the narrowest point) and the maximum are measured. Next, both indicators are added and divided in half. After this, 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 look at what this looks like as a mathematical expression:

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

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

Helpful information ! When purchasing raw boards, you need to be careful. Sellers should use a factor that reduces the total volume to account for 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 method that allows you to determine the volume of lumber and its quantity in 1 cubic meter is the sampling method. It is used when calculating large quantities of wooden building materials. The essence of this method is that from total mass Several boards are selected. Then the parts are measured and calculated in accordance with piece by piece. The resulting numbers are multiplied by the total number of parts in the batch.

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

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

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

Related article:

Main selection criteria finished product. Comparison of prices from well-known manufacturers.

After addition and division by 2, we obtain 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 to find 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 analogue.

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. In this case, it is important not to make a mistake and remember 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 the value that corresponds to the total price of the cube. This is how the calculation of cubes in a cube of a 50x150x6000 board is performed.

Calculating the board using an online calculator

Perhaps the simplest method (along with the lumber cubature table) by definition exact value volume and quantity wooden boards– online calculator. It is a program with specified algorithms that allow you to calculate all the necessary values ​​of lumber. This method makes it possible to calculate not only edged boards, but also other types of these products.

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

The process itself is quite simple. First, you need to find a calculator on one of the specialized sites using the search bar of your browser. Next you need to enter necessary indicators into the appropriate cells. The cube board calculator will do the calculations on its own.

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

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

The latest method to determine the quantity and cubic capacity wooden products, is to use a special table. This method is very convenient as it does not require lengthy calculations. All that is needed is simply to find the desired value in the table using the original 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 best suited. However, experts point out one drawback of this method: numbers corresponding to cubic capacity or quantity are often rounded. Therefore, if you need to perform the most accurate calculation, it is recommended to carry out all the calculations yourself.

Volume of edged board in cube:

In addition, before starting the search desired value It is advisable to ensure that the length of the lumber is correct. Tables can be different, containing information about the cubic capacity of boards with a length of 3, 4 or 6 m. Today, the most common wooden products are 6 meters long. How many boards are in one cube? The table that allows you to determine the quantity of lumber also uses rounded values.

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

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

The good thing about the tabular method is that it does not require calculations or self-filling of dimensional and other values ​​of lumber to obtain an answer. It is suitable for determining cubic capacity, 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 products.

Prices of edged boards per cube: 50x150x6000and other varieties

Today you can find many types of lumber on the construction market. All of them are differentiated not only by size, but also by the type of wood from which they were made. The cost of these products is also influenced by 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 parts.

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

Helpful information! The price for a 1st grade edged board is approximately 7,500 rubles. for 1 cubic 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 the wooden lumber, there will be the same number of parts. In the sense that for the same price you will get 44 edged boards 25x1500x6000 (price per cube: 7500 rubles) or 22 parts 50x150 having the same length.

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

Unedged products are cheaper because they are of lower quality. Their cost is calculated using average 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 higher quality lumber, for example, edged boards 40x150x6000 (price per cube: 7500) or similar products with other dimensions.

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

How much does a cube of board weigh? When purchasing this building material, you should consider its weight. For example, an edged board made from dry spruce weighs 450 kg (1 cubic meter). 1 m³ of raw product has a mass of 790 kg. Dry pine weighs 470, and wet - 890 kg. This knowledge will be needed when transporting products.

When choosing lumber and calculating it, you must be careful. The board should not have cracks, chips or other defects. Small cracks are allowed, but it is recommended to buy a solid, high-quality product that complies with 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 calculations and draw up an estimate.

Repair and construction work often involves the use of lumber. But shops and timber trading centers often sell them not in pieces, but in cubes.

Everything is very simple and fast.

Method for calculating edged lumber

• a caliper, tape measure or folding m; if the length parameters of wood products are known, you can limit yourself to a regular ruler;
• calculator - suitable mobile phone, smartphone, if problems may arise with mental arithmetic;
• a piece of paper and a pencil - to record the results of calculations, how many boards are in a cube.

1. Volume = Length × Height (product thickness) × Width.

To prevent confusion when converting cubic centimeters to Cubic Meters It is more convenient to immediately record the measurement results in meters.

For example, 0.132 cu. m = 6 m × 0.022 m (2.2 cm) × 0.10 m (10 cm).

Now, to determine the number of planks in a cube, you need 1 cubic meter. m divided by 0.132. The result obtained (7, 5757) when purchasing timber must be rounded to 8 pieces.

This method of calculating cubic capacity is also suitable for timber. This way you can determine how many cubes of timber you need to purchase if you know the required number of products, or, conversely, determine the required number of cubes.

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How to calculate the cube of an unedged board?

To determine the required volume of timber, the easiest way is to carry out calculations similar to the above method. Only the final result needs to be multiplied by 1.2 - a correction factor. From unedged boards you can get no more than 70-80% of edged ones.

The width and thickness of each product are measured taking into account its further processing. The technique will help determine the number of cubes of wooden products needed for work, if the final result is planned for their further processing - trimming.

When purchasing, the widest and thinnest boards are measured to obtain an average width. If the width of the lumber at the butt is wider than at the top, the arithmetic mean of their dimensions is used without taking into account the bast layer or bark, rounded to 10 mm. In this case, fractions from 5 mm are rounded to the full 10 mm, and fractions up to 5 mm are not taken into account. The length and thickness of the lumber are measured in the usual way. The volume of timber is determined according to the usual scheme:

• the volume of one product is calculated;
• the total cubic capacity of purchased timber is determined; According to GOST, correction factors are used: 0.96 – for lumber from coniferous trees, 0.95 – for lumber from deciduous trees.

In addition to the piecemeal method for determining the volume of unedged lumber, the geometric method can be used.

Requirements for a package of unedged timber:

• lumber is laid tightly, without overlaps, in horizontal rows;
• on one side the ends of the boards are aligned;
• all sides of the package are strictly vertical: according to GOST, the displacement of individual products outward and inward should not exceed 0.10 m;
• The package of lumber must be the same width along its entire length.

Then the volume of the package is calculated, the resulting result is multiplied by the coefficient: