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 to perform the appropriate calculations. The board is a common material that is used everywhere. In order to determine how many boards are in a cube, it is necessary to become familiar with the calculation options and the nuances of this process.
How many boards in the cube: types of lumber and features of their calculation
Boards that are used in the construction of houses and other structures differ by 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 wood type. Depending on the method of production, these building elements are divided into types:
The first of them belong to the highest grade and have the correct form, since all their faces are amenable to processing. In turn, unedged products are most often used for organizing rough decks, etc. The peculiarity of such a material is that its lateral edges are not processed, they contain bark and have a natural shape. This simplifies the production of unedged board and affects its 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 cubic capacity and cost of the trimmed part, since it has a geometrically regular shape.
For unedged products, there are constant values that are arithmetic averages. The table of boards in a cube in this case is not always suitable, since it takes into account the rounding of even edged lumber.
Separately, it should be said about building materials for finishing. This group includes floorboards, wall paneling, block house and products that imitate timber. The design of these finishing parts includes special ribs and grooves, which are necessary for tightly connecting the individual elements to each other.
Useful 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 lock joints is not taken into account, only the numerical values of the product body are taken for calculation.
No matter what kind of material is used, a single formula is used to calculate the number of boards in a cube. The exception in this case are unedged products. Their calculation has its own characteristics, because such details do not have all the faces necessary for the calculation.
Cube Volume Formula: how many edged boards in 1 cubic meter
A cube is a geometric shape that consists of 6 equivalent faces. Each of them is a square. To determine the volume of this figure, 3 indicators must be multiplied together:
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 – the width of the element (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 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 such a transformation will be as follows:
V = 0.025 x 0.15 x 6
The result is that the volume of one wooden part is equal to 0.0225 cubic meters (m?). Then it remains to calculate how many pieces of edged board is contained in 1 cubic meter. There is a simple formula for this. It implies the division of 1 cubic meter by the volume of 1 board, which was obtained using the past mathematical expression. Consider the calculation by example:
1m? / 0,0225 m? = 44.4
Thus, 1 cubic meter contains approximately (if rounded) 44 boards. After that, it is already possible to independently determine the amount of material required for the construction of a particular structure. And also at this stage, you can make a general estimate indicating the price of a cut board per cube.
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. Consider an example:
0.0225 x 8200 rub. = 184.5 rubles
The calculation showed that the cost of 1 product of the trimmed variety will be approximately 184 rubles. If the cost of 1 part is known, and it is necessary to calculate the price of the cube of the board, it is necessary to do the reverse 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 buying a small batch of boards, there is confusion with decimal places. In some cases, lumber sellers deliberately charge a price calculated when rounding to 3 numbers. However, by law, this value is only suitable for large batches of boards. When purchasing several products, it is recommended to carry out rounding according to GOST, namely to 0.000001 m ?.
When calculating the number of boards and the cost of lumber per cubic meter, it is desirable to take into account unplanned losses, which very often occur during construction. Therefore, it is recommended to buy edged products with a small margin (a few pieces).
The calculation of the cubature of the unedged board has some nuances, since its shape is not correct. This material does not have a rectangular cross-section along the entire length; therefore, it is used to organize temporary structures. The lower and upper surfaces of unedged boards must necessarily be processed along the entire length. Otherwise, this product is the side of the log (slab).
To find the volume of unedged timber in 1 cubic meter, as well as its quantity, there are several methods. Immediately, it is worth noting that it is rather difficult to determine how many boards are in one cube when it comes to irregular geometric shapes. Therefore, the initial numbers obtained in the calculation of the unedged parts will be an approximate figure.
Consider what methods are used to calculate the cubic capacity and the number of unedged lumber:
- piece by piece;
- sampling method.
In the first case, you will need to load the lumber into the package, which must have the correct shape. After the bookmark is necessary to measure the desired indicators. Next, a standard volume determination procedure is performed using the values obtained when taking measurements. The most common such method for products that do not have clear edges. For example, it can be used to calculate cubes of a board 25x150x6000 cubed (unedged).
It should be noted that in a mathematical expression of this type a special coefficient is applied (for width), which is an arithmetic average. Although this option is not fast, it does allow you to answer the question 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 cut product. These values are calculated in meters.
In order to find the average arithmetic number, you need to measure the board. The minimum width (at the narrowest point) and the maximum are measured. Further, both indicators are added 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.
Consider how this looks like 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 cubic capacity 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 edged part (the cubic meter is divided by the volume of the product).
Useful information! When buying raw boards you need to be careful. Sellers should use a factor that affects the reduction in total volume with regard to 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 calculations of large quantities of wooden building materials. The essence of this method is that several are chosen from the total mass of the boards. Then the measurement of parts and calculation in accordance with the piece method. The resulting numbers are multiplied by the total number of parts in the batch.
How many boards in a cube 50x150x6000 in a cube: payment
As an example, you can take an unedged product with dimensions of 50 to 150 by 6000 mm. First we convert millimeters to meters. Some people do not know how many millimeters in 1 meter. To convert, you need to multiply the required number in mm by a factor of 0.001. In finished form (with the substituted values) the formula will look as follows:
(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 obtain the arithmetic average of the width and height of the unedged part. Thus, the formula takes a more understandable, standard form:
0.15 x 0.05 x 6 = 0.045
So the 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 the 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 implies a multiplication of the width of the part by its length. It is important in this case not to be mistaken and do not forget to convert millimeters to meters.
In order to determine the value, 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 cubes are calculated in a cube 50x150x6000.
Perhaps the easiest way (along with the lumber cubicle table) to determine the exact value of the volume and number of wooden boards is an online calculator. It is a program with predetermined algorithms that allow you to calculate all the necessary values of lumber. 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 which board uses the measurement.
The process itself is quite simple. First you need to find a calculator on one of the profile sites, using the browser search line. Next, you need to enter the necessary indicators in the appropriate cells. The calculator of the boards in the cube will make the calculation independently.
This method is popular and allows you to quickly and accurately determine all the necessary values of lumber. When using a calculator it is recommended to check the accuracy of filling several times. In case of an error, the calculation will be performed incorrectly, which is fraught with serious discrepancies in the total figures.
How many boards in a cube: a table (6 meters) and tips for its use
The last method, which allows to determine the number and volume of wooden products, is to use a special table. This method is very convenient, since it does not require long calculations. All that is needed is to simply find the desired value in the table using the raw data (width, height and length).
In order to quickly find the right answer to the question of how many boards are in one cube, the table is best suited. However, experts point to one drawback of this method: the numbers corresponding to the cubic capacity or number are often rounded. Therefore, if you need to perform the most accurate calculation, it is recommended to carry out all the calculations yourself.
The volume of the edged board in the cube:
Board dimensions, mm
|Length, m||Volume is 1 pieces, m?|
|50 to 200||6||0.06|
|30 to 100||0.018|
|20 to 150||0.018|
|30 to 150||0.027|
|20 to 200||0.024|
|30 to 200||0.036|
|25 to 100||0.015|
|40 per 100||0.024|
|25 to 150||0.0225|
|40 to 150||0.036|
|25 to 200||0.03|
|50 to 100||0.03|
|40 to 200||0.048|
|50 to 150||0.045|
|20 to 100||0.012|
In addition, before starting the search for the desired value, it is desirable to ensure that the length of the lumber is consistent. The 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 are wooden products whose length is 6 meters. How many boards in one cube? The table, which allows to determine the amount of lumber, also uses rounded values.
Do not forget that the board can be made of different wood species. Therefore, before starting to use the table, it is recommended to make sure that you have selected the required type of sawn timber.
How many boards in 1 cube: a table (6 meters):
Board dimensions, mm
|Length, m||The number of pieces in 1 m?|
50 to 200
30 to 100
20 to 150
30 to 150
20 to 200
30 to 200
25 to 100
40 per 100
25 to 150
40 to 150
25 to 200
50 to 100
40 to 200
50 to 150
20 to 100
The tabular method is good because it does not require calculations or self-filling of dimensional and other values of lumber to get an answer. It is suitable for determining the 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 a product.
Prices of edged boards per cube: 50x150x6000 and other varieties
Today in the construction market you can find many varieties of lumber. All of them are differentiated not only in size but also in the type of wood from which they were made. And also the cost of these products is affected by the production technology and their purpose. In order to find out how much a cube of a board costs, you need to familiarize yourself with all the varieties of these parts.
The most popular in the construction of private houses, villas, and other structures is the classic edging board. It can be 1st and 2nd grade. The first option is more expensive because it has higher technical characteristics and durability.
Useful information! The price for a cut board of the 1st grade is approximately 7,500 rubles. for 1 cu. Products that belong to a lower quality group cost about 4-6 thousand rubles. for 1 m.
The width and height of boards, as a rule, does not affect their value. This is due to the fact that in a cubic meter, regardless of the dimensions of the timber, 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 50×150 having the same length.
Separately, it should be said about the trim boards, made in accordance with the technical conditions (TU). Lumber of this type costs an average of about 7,000 rubles. per cubic meter Such boards have good quality characteristics and can be used in the construction of various structures.
Unedged products are cheaper because they are of lower quality. The calculation of their cost is made using averaged values. The price of unedged timber 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 40x150x6000 (price per cube: 7500) or similar products with other dimensions.
When buying wood, you need to pay attention to some points. For example, the board must be smooth. The curvature of the product most often indicates that during its production the technology was violated. Such parts are not used in construction, as they do not have the required quality.
How much does the board cube weigh? When purchasing this building material should take into account its weight. For example, an edged board made of dry spruce weighs 450 kg (1 cu.). 1m? raw products have 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 must be careful. The board should not have cracks, chips and other defects. Small cracks are allowed, however it is recommended to buy a one-piece, high-quality product corresponding to GOST. And also should 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 method of calculation depends on the specific case. If necessary, you can always use the services of specialists to help you carry out the correct calculation and make an estimate.