How to calculate the cube of the unedged board. How many blackboard in Cuba: how to make calculations using various methods how to calculate the cube of the edged board

When building work on the construction of a residential building, a specialist needs to perform a large number of various tasks, one of which are: drawing up and calculating the estimated value to the final decoration of the residential building. No compulsory, make the calculation of the required number of various building materials, which is quite difficult to do. Therefore, such knowledge - how many in Cuba boards is very important for a specialist who is engaged in the construction of a residential building and wishes to perform work as high quality and quickly in time.

CUSTOMER CLUB: Existing types of boards

To calculate how much the board pieces in Cuba, it will be necessary to know not only what exactly the board is the board, but it is worth understanding an important point that there are various types of boards and what is the opportunity to purchase in the modern market to fulfill various construction work. It should be noted that the cube of almost all materials, regardless of the variety of material, is calculated in the same way, that is, one defined method. Board varieties do not have the effect on the calculation of the cube of this building material.

Unfolded type of lumber are: timber, various edged boards, as well as unedged boards (are an exception when calculating the cube, because this process occurs a little differently). To the tipped species (which have special grooves, for the implementation of the joint) include: modern lining, block mobile, floor material, as well as imitation of a natural bar. When you choose to purchase a t-shut-off type of building material, then you will need to pay your attention that when calculating, only the working width of the board without spikes is used exclusively. If we talk about the block champion (imitation of the log), then when calculating the cubs take only the thickness in its highest point.

What quantity in 1 Cuba boards: execution of the calculation

Anyone, since his school times, it is clear how the cub is calculated. For this procedure, it is necessary to calculate the values, such as: length, width and height. A similar principle is used and for the calculation of the cube 1 of the board. It is recommended when performing such calculations, translate all existing values \u200b\u200bto meters. Cubature 1 boards, which has a section of 150x20 mm. and 6 m long, calculated as follows: 0.15 multiplies 0.02 and 6, so that the cubature of this boards will be 0.018 cubic meters.

Apply the volume formula V \u003d L * H * B (where L is the length, H is the height, B - width).

L \u003d 6.0; h \u003d 0.02; B \u003d 0.15.

Thus, V \u003d 6.0 * 0.02 * 0.15 \u003d 0.018 m 3.

To determine how many boards in one Cuba: 1 m 3 divide into the cube (volume of one board).

1 m 3 / V \u003d \u200b\u200bn pc.

1 m 3 / 0,018 m 3 \u003d 55.55 pcs.

Thus, the number of boards in one Cuba is 55.5 pieces.

Learn the cost of a specific type of board, when the values \u200b\u200bof its volume are known sufficiently easily: 0,018 is multiplied by the price of 1 cubic meter. When 1 cube of a certain type of board has a cost of 5,500 rubles, then the cost will be 99 rubles. At this point of calculation, there is some trick of sellers and managers in construction stores, because the material cubature is rounded to some entire values.

Such rounding is capable of bringing to this moment that the price of 1 boards (when 1 cube costs 5500) will be completely different values. In addition to all this, it should be noted that various boards for construction, which constitute a nominal length of 6 meters, is in fact the length is 6.1 - 6.2 m. It does not take into account when implementing this building material. This, applies to the acquisition of a significant number of boards. This is clearly clearly seen if the board is 150x20 mm for example. The number of boards in Cuba is 55.5 pcs. But, 55 pcs consider in Cuba, that when calculating the calculation will be a value of 0.99 cubic meters. In fact, this is the moment that overpayment for 1 cubic meter of this popular building material may be a value of 1% of the real price. For example, 5500 instead of 4995 rubles.

For the calculation of the cube for the unchanging board type, some other methods are used. When the conversation is about buying 1 boards, then the measurement of its thickness, and the total length is performed in a similar way, as well as when the edged building material is selected. In this case, the width for calculations is taken by averaged - between the great value and small.

For example, when the board width is 25 cm at the end, and on the other 20, then the average value will be approximately 22 centimeters. When, it is necessary to calculate the volume of a significant number of such boards for construction, then it will be necessary to decompose them so that the broader does not have differences from narrow, more than 10 cm. The main length of this material in the unfolded stack, indicatively the same should be the same. After that, with the use of a conventional roulette, an accurate measurement of the height of the entire existing stack of boards is performed, the width is measured (approximately on the middle). The result obtained is then needed to be multiplied by a special coefficient constituting a value from 0.07 to 0.09, in direct dependence on the existing air gap.

How many in 1 Cuba Boards: Special Tables

To calculate what exactly the number of boards of a certain width, length in 1 cubic meter, a variety of tables apply. The following shows several such specialized tables, where the cubature of the common and sought-after types of this material are indicated. Calculate the volume of various boards having different sizes, for example, material for the construction of the fence on its plot, it is possible on its own using the existing formula that is presented above.

Table of the amount of edged board in 1 cubic meter

Board size	Volume of the 1st Board (M 3)	Number of boards in 1m 3 (pcs.)	Number of square meters in 1m 2
Twenty
Board 20x100x6000	0.012 m 3.	83 pcs.	50 m 2.
Board 20x120x6000.	0.0144 m 3.	69 pcs.	50 m 2.
Board 20x150x6000.	0.018 m 3.	55 pcs.	50 m 2.
Board 20x180x6000.	0.0216 m 3.	46 pcs.	50 m 2.
Board 20x200x6000.	0.024 m 3.	41 pcs.	50 m 2.
Board 20x250x6000.	0.03 m 3.	33 pcs.	50 m 2.
Twenty pitiful
Board 25x100x6000	0.015 m 3.	67 pcs.	40 m 2.
Board 25x120x6000.	0.018 m 3.	55 pcs.	40 m 2.
Board 25x150x6000.	0.0225 m 3.	44 pcs.	40 m 2.
Board 25x180x6000	0.027 m 3.	37 pcs.	40 m 2.
Board 25x200x6000	0.03 m 3.	33 pcs.	40 m 2.
Board 25x250x6000.	0.0375 m 3.	26 pcs.	40 m 2.
Thirty
Board 30x100x6000.	0.018 m 3.	55 pcs.	33 m 2.
Board 30x120x6000.	0.0216 m 3.	46 pcs.	33 m 2.
Board 30x150x6000	0.027 m 3.	37 pcs.	33 m 2.
Board 30x180x6000.	0.0324 m 3.	30 pcs.	33 m 2.
Board 30x200x6000	0.036 m 3.	27 pcs.	33 m 2.
Board 30x250x6000.	0.045 m 3.	22 pcs.	33 m 2.
Thirtiethide
Board 32x100x6000	0,0192 m 3.	52 pcs.	31 m 2.
Board 32x120x6000	0.023 m 3.	43 pcs.	31 m 2.
Chalkboard 32x150x6000.	0.0288 m 3.	34 pcs.	31 m 2.
Board 32x180x6000.	0.0346 m 3.	28 pcs.	31 m 2.
Board 32x200x6000	0.0384 m 3.	26 pcs.	31 m 2.
Chalkboard 32x250x6000.	0.048 m 3.	20 pcs.	31 m 2.
Sorokovka.
Board 40x100x6000	0.024 m 3.	41 pcs.	25 m 2.
Board 40x120x6000.	0.0288 m 3.	34 pcs.	25 m 2.
Board 40x150x6000.	0.036 m 3.	27 pcs.	25 m 2.
Board 40x180x6000.	0.0432 m 3.	23 pcs.	25 m 2.
Board 40x200x6000.	0.048 m 3.	20 pcs.	25 m 2.
Board 40x250x6000.	0.06 m 3.	16 pcs.	25 m 2.
Fifty
Board 50x100x6000.	0.03 m 3.	33 pcs.	20 m 2.
Board 50x120x6000.	0.036 m 3.	27 pcs.	20 m 2.
Board 50x150x6000.	0.045 m 3.	22 pcs.	20 m 2.
Board 50x180x6000.	0.054 m 3.	18 pcs.	20 m 2.
Board 50x200x6000.	0.06 m 3.	16 pcs.	20 m 2.
Board 50x250x6000.	0.075 m 3.	13 pcs.	20 m 2.

Table of the number of timber in 1 cubic meter

Bruus size	Volume of the 1st thing (m³)	Number of timber in 1m³ (pcs.)
100 × 100 × 6000	0.06 m 3.	16 pcs.
100 × 150 × 6000	0.09 m 3.	11 pcs.
150 × 150 × 6000	0.135 m 3.	7 pcs.
100 × 180 × 6000	0.108 m 3.	9 pcs.
150 × 180 × 6000	0.162 m 3.	6 pcs.
180 × 180 × 6000	0.1944 m 3.	5 pieces.
100 × 200 × 6000	0.12 m 3.	8 pcs.
150 × 200 × 6000	0.18 m 3.	5.5 pcs.
180 × 200 × 6000	0.216 m 3.	4.5 pcs.
200 × 200 × 6000	0.24 m 3.	4 things.
250 × 200 × 6000	0.3 m 3.	3 pcs.

Table of the amount of Unedged Board in 1 cubic meter

Repair and construction work often imply the use of sawn timber. But stores, forest-trading bases implement them more often, and cubes.

Everything is very simple and fast.

Method for calculating edged lumber

• caliper, roulette or folding m, with known parameters of the length of wood products can be limited to a conventional line;
• calculator - a mobile phone is suitable, a smartphone, if there may be problems with the account "in mind";
• a piece of paper and pencil - to fix the results of the calculations, how many boards in Cuba.

1. Volume \u003d length × Height (product thickness) × Width.

To prevent confusion when translating cubic centimeters into cubic meters, it is more convenient to record the measurement results immediately in meters.

For example, 0.132 cubic meters. m \u003d 6 m × 0.022 m (2.2 cm) × 0.10 m (10 cm).

Now, to determine the number of skimps in Cuba, you need 1 cubic meter. M is divided by 0.132. The result (7, 5757) obtained when buying timber needs to round up to 8 pcs.

This method of calculating the cube is also suitable for a bar. So you can determine how many cubes of timber must be purchased if the required amount of products is known, or, on the contrary, determine the required number of cubes.

Back to the category

How to calculate the cube of the unedged board?

To determine the required volume of timber, the easiest way is to carry out calculations similar to the above method. Only the end result must be multiplied by 1.2 - correction coefficient. Of the unedged boards, you can get more than 70-80% of edged.

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 to work if the final result is planned to be further processing - trimming.

When buying, the widest and finest boards are measured to obtain an average width. If the width of the lumber from the comula is wider than the tops, the average temperature of their size is used without taking into account the lubyan layer or bark with rounding up to 10 mm. In this case, the shares from 5 mm are rounded to a total of 10 mm, and the shades of up to 5 mm are not taken into account. Length and thickness of lumber are measured in the usual way. The volume of timber is determined by the usual scheme:

• the volume of one product is calculated;
• the overall cube of the beloved timber is determined; According to GOST, correction coefficients are used: 0.96 - for lumber from coniferous rocks, 0.95 - for sawn timber from hardwood wood.

In addition to the divisional method for determining the volume of unedged lumber, a geometric method can be applied.

Requirements for the package of unedged timber:

• sawn timber is laid tight, without adhesive, horizontal rows;
• with one side ends of the boards aligned;
• all sides of the package are strictly vertical: According to the GOST offset of individual products, it should not exceed 0.10 m;
• over the entire length, the package of sawn timber must be the same width.

Then the amount of the package is calculated, the result obtained is multiplied by the ratio:

On this page you can count the number of boards in one cubic meter. The table of standard sections of sawn timber and a table of the number of boards (timber) in 1 cube for a length of 6 meters are also shown.

Calculator calculating the number of boards (timing) in one cubic meter in cross section and length

Answer: In one Cuba 0 pcs

Calculator knows the number of boards (timber) - how many cubes?

Answer: such boards (timber) is 0 m3 cost 0 rub

Table of standard sizes of cross sections of boards and timber.

The cross sections of the boards and timber have standard dimensions that correspond to GOST 24454-80 "Sailing breed lumber. Sizes"

Thickness, mm.	Width, mm.
16	75	100	125	150	-	-	-	-	-
19	75	100	125	150	175	-	-	-	-
22	75	100	125	150	175	200	225	-	-
25	75	100	125	150	175	200	225	250	275
32	75	100	125	150	175	200	225	250	275
40	75	100	125	150	175	200	225	250	275
44	75	100	125	150	175	200	225	250	275
50	75	100	125	150	175	200	225	250	275
60	75	100	125	150	175	200	225	250	275
75	75	100	125	150	175	200	225	250	275
100	-	100	125	150	175	200	225	250	275
125	-	-	125	150	175	200	225	250	-
150	-	-	-	150	175	200	225	250	-
175	-	-	-	-	175	200	225	250	-
200	-	-	-	-	-	200	225	250	-
250	-	-	-	-	-	-	-	250	-

Table How many 6 meter boards in one Cuba

For the standard length of 6 meters, the following table is counted. Lumber of small sections available in retail of course less than 6 meters. It is usually 3 m or 2.5 m. To calculate the number of any non-standard sizes, use the calculator at the top of the page.

No. p / p	Section size, mm	Length, mm.	Quantity in 1 Cuba, pcs	The area that can be sewed using 1 cubic meters, m2
1	16x75	6000	138,89	62,50	2	16x100	6000	104,17	62,50	3	16x125	6000	83,33	62,50	4	16x150	6000	69,44	62,50	5	19x75	6000	116,96	52,63	6	19x100	6000	87,72	52,63	7	19x125	6000	70,18	52,63	8	19x150	6000	58,48	52,63	9	19x175	6000	50,13	52,63	10	22x75	6000	101,01	45,45	11	22x100	6000	75,76	45,45	12	22x125	6000	60,61	45,45	13	22x150	6000	50,51	45,45	14	22x175	6000	43,29	45,45	15	22x200	6000	37,88	45,45	16	22x225	6000	33,67	45,45	17	25x75	6000	88,89	40,00	18	25x100	6000	66,67	40,00	19	25x125	6000	53,33	40,00	20	25x150	6000	44,44	40,00	21	25x175	6000	38,10	40,00	22	25x200.	6000	33,33	40,00	23	25x225	6000	29,63	40,00	24	25x250	6000	26,67	40,00	25	25x275	6000	24,24	40,00	26	32x75	6000	69,44	31,25	27	32x100	6000	52,08	31,25	28	32x125	6000	41,67	31,25	29	32x150	6000	34,72	31,25	30	32x175	6000	29,76	31,25	31	32x200	6000	26,04	31,25	32	32x225	6000	23,15	31,25	33	32x250	6000	20,83	31,25	34	32x275	6000	18,94	31,25	35	40x75	6000	55,56	25,00	36	40x100	6000	41,67	25,00	37	40x125	6000	33,33	25,00	38	40x150	6000	27,78	25,00	39	40x175	6000	23,81	25,00	40	40x200	6000	20,83	25,00	41	40x225	6000	18,52	25,00	42	40x250	6000	16,67	25,00	43	40x275	6000	15,15	25,00	44	44x75	6000	50,51	22,73	45	44X100.	6000	37,88	22,73	46	44X125	6000	30,30	22,73	47	44x150	6000	25,25	22,73	48	44x175	6000	21,65	22,73	49	44x200	6000	18,94	22,73	50	44X225	6000	16,84	22,73	51	44x250.	6000	15,15	22,73	52	44x275	6000	13,77	22,73	53	50x75	6000	44,44	20,00	54	50x100	6000	33,33	20,00	55	50x125	6000	26,67	20,00	56	50x150	6000	22,22	20,00	57	50x175	6000	19,05	20,00	58	50x200	6000	16,67	20,00	59	50x225	6000	14,81	20,00	60	50x250	6000	13,33	20,00	61	50x275	6000	12,12	20,00	62	60x75	6000	37,04	16,67	63	60x100.	6000	27,78	16,67	64	60x125	6000	22,22	16,67	65	60x150	6000	18,52	16,67	66	60x175	6000	15,87	16,67	67	60x200	6000	13,89	16,67	68	60x225	6000	12,35	16,67	69	60x250	6000	11,11	16,67	70	60x275	6000	10,10	16,67	71	75x75	6000	29,63	13,33	72	75x100.	6000	22,22	13,33	73	75x125	6000	17,78	13,33	74	75x150	6000	14,81	13,33	75	75x175	6000	12,70	13,33	76	75x200	6000	11,11	13,33	77	75x225	6000	9,88	13,33	78	75x250	6000	8,89	13,33	79	75x275	6000	8,08	13,33	80	100x100	6000	16,67	10,00	81	100x125	6000	13,33	10,00	82	100x150.	6000	11,11	10,00	83	100x175	6000	9,52	10,00	84	100x200	6000	8,33	10,00	85	100x225	6000	7,41	10,00	86	100x250	6000	6,67	10,00	87	100x275	6000	6,06	10,00	88	125x125	6000	10,67	8,00	89	125x150	6000	8,89	8,00	90	125x175	6000	7,62	8,00	91	125x200	6000	6,67	8,00	92	125x225	6000	5,93	8,00	93	125x250	6000	5,33	8,00	94	150x150	6000	7,41	6,67	95	150x175	6000	6,35	6,67	96	150x200	6000	5,56	6,67	97	150x225	6000	4,94	6,67	98	150x250	6000	4,44	6,67	99	175x175	6000	5,44	5,71	100	175x200	6000	4,76	5,71	101	175x225	6000	4,23	5,71	102	175x250.	6000	3,81	5,71	103	200x200.	6000	4,17	5,00	104	200x225	6000	3,70	5,00	105	200x250.	6000	3,33	5,00	106	250x250	6000	2,67	4,00

Almost everything in our world has its measurement value. Oil measuring in barrels, coal in tons, population of countries in thousands, millions.

As a basis, we take the amount capable of specifically to designate the object that we measure. When the question arises how to calculate the cube of the board, the speech is already not about the mass of the subject, since wood has a completely different density, and one tree has differences from the other. In addition, the boards of the same breed will have a different weight taking into account their humidity.

For the convenience of calculating the board of the board, the volume measurement formulas are used.

It is enough to recall the school mathematics and the necessary formula that should be multiplied by the width, length and height. For the correctness of the calculation, it is necessary to adjust all parameters for one value, for example in centimeters or decimeters. It is most convenient to take a meter base. Thus, making three times multiplication in meters, we get m³ or cube.

Note. Special formulas are used to calculate the boards of the board.

Cubature boards

Boards may have differences in width, length, thickness. In addition, they are implemented by unedged and edged. Often lumber have their own generally accepted standards that facilitate the calculation of the cub.

For the usual sizes of material, there are already calculated volumes that are systematized in the table of measurement of the boards. Therefore, to determine the volume of the material, it is necessary to simply open the table with the designated dimensions and calculate the volume.

But in order to do this, you need to have these tables with you. Otherwise, for the lack of such, the cube of the cutting board is calculated, before determining the thickness and length. These are the main dimensions corresponding to the requirements for lumber. Everyone separately taken is different. For example, a board is used to create a crate, in which the thickness is 25 mm, and for black floors is 50 mm. Next you need to measure the width of the board.

In the case of a edged board, everything is simple because the material is cut into order to give one width. Next, with the help of a calculator, all values \u200b\u200bare multiplied with each other. With the length of the board, 5 m, the thickness of 50 mm and a width of 25 cm, the volume of the material will be:

5 x 0.050 x 0.25 \u003d 0.0625 m³

After multiplying the resulting number on the number of boards, we obtain the volume of the material.

Formula for calculating cabbage boards

V \u003d L x H x B

L - Length

h - Height

b - width

Determination of the number of boards in the cubic meter

1 m 3: v \u003d n

In order to determine the cost of a specific type of board, with known volume values: V x Price 1 m 3.

There is another point to which it is necessary to pay attention to the definition of the boards - the nominal length exactly is 6.1 - 6.2 m, but during sale this is not taken into account. Often it matters in the case of purchasing a large amount of material. For example, take the board with dimensions of 150 x 20 mm.

Having performed simple calculations, we obtain the number of boards in 1 m 3 - 55, 5 pieces. Thus, in the cube of the board 6 m, there are 55 pieces, and in the calculation, we obtain the value of 0.99 m 3. Essentially, the overpayment of the board's cube will be 1% of the exact price. For example, at a cost of 4,995 rubles, we pay 5 500 rubles.

Unedged board

Features of calculation

The calculation of the cabbage of the unedged board is somewhat complicated, since the material does not have one width between different boards, but also in each board separately. This is explained quite simple - the tree does not have the same diameter.

It is clear that at the bottom it is wider, at the top already. Thus, the width of the edged board does not fall under any standards. How to be in this case? Use to calculate with different formulas. The width of the board is measured for convenience in the middle of the length. So you get the average width. This calculation method works well if the batch of material is small.

For industrial volumes

This method is not suitable, since the work will pass very slowly, and this is not profitable. For such cases, experts have developed the so-called cabin boards unedged. The volume in it is obtained by measuring and experimenting, simply speaking, using a plurality of measurements and calculating the average width value.

Of course, it cannot be called a super precise way, but deviations are so insignificant that they should not pay attention to them.

Some enterprises involved in wood processing are used in practice the method of measuring the stack. For this, it is not necessary to pre-sort the wood in width. Experts make the length of the boards, the average width and height of the stack. The obtained values \u200b\u200bare multiplied with each other, and the result is multiplied by the coefficient for calculating the board cube, which has a mean value - 0.67.

Weighing method

In order to measure the cabin of the board is unous, having obtained the maximum possible accurate result, the weighing method is used.

Before doing this, it is necessary to measure the humidity of the material and the dense tree. Considering the fact that the edged board is the cheapest material used at objects with the smallest degree of responsibility, then complex calculations are not too much justified.

Also, it should be considered that the result you get will not be particularly different from the one that can be obtained using a cube.

When erecting residential buildings

Here professionals are obliged to make many tasks, among which: the calculation and compilation of estimates before performing the finishing of the premises. In addition, it is necessary to calculate the required number of building materials. It is worth noting that this task is quite difficult. Considering this, the definition of the boards of the board is an important point.

Note. The cubic meter of sawn timber is calculated using a single method. The boards variety does not affect the result.

To unfolded species Woods include: edged board, unedged board.

Spooned species - These are those who have special grooves for perfect bumps of boards: flooring, lining ,. Please note that purchasing a whipped board, the calculation is carried out using the working width of the material, without spikes.

Regarding the calculation of the cabbage of the unedged board, with the values \u200b\u200bof the width of one end, 25 cm, and 20 cm - the other, the average value will be 22 cm. To calculate a large amount of material, it is unfolded in such a way that the wide part does not have differences from a narrow more than 10 Santimeters.

The main length of the board in an unfolded pack must be approximately the same. Then, using a roulette, measured the height of the stacks from the boards and the width in the middle. The result, which is obtained by measurements, is multiplied by a coefficient with a value of 0.07 - 0.09, which depends on the air gap between the boards.

One of the ways of reasonable savings is the purchase of building materials in the required quantity, nor more and no less. A private developer knows well how many and what samples it needs to be purchased to perform a specific work. But the complexity is that the pieces of the boards, with rare exceptions, are not sold - only by parties (packs). Yes, and for construction, no one buys a few pieces. How to determine how many m 3 wood acquire?

How to choose sawn timber?

1. To deal with the types of necessary blanks, based on the specifics of their further use. The goods are classified as a edged board, Obapol and Unedged. If the wood is needed and the other, then it is necessary to calculate the volume of purchases for each product species separately.

2. Determine with the required linear parameters of products and translate them into one dimension. Since the cube is M 3, then to then read it is easier, length, width and thickness should be recorded in meters.

In the process of construction requires boards of different lengths. If they are very different in this parameter, then it is worth calculating the cube for each group separately - so you can reduce waste when stripping. It is desirable before you consider, find out how long products are sold in the building materials market. The fact is that for them each manufacturer can have their own sizes. Here on these values \u200b\u200bshould be grouped products, and then count how much and what boards will be required. If it is for yourself to make a table and think everything is well, it will come to save well.

Features of calculating the volume of sawn timber

There are typical tables intended to determine the volume of various billets (logs, boards, timber). It is possible to calculate with the help of calculators that are available on thematic sites. But in practice, in the "field" conditions, you have to work in "manual" mode. That is, to consider the cube of the board, using only a tape measure, since the stacks market do not fit exactly 1 m 3.

1. Edged board.

Example (for those who forgot to school).

• We calculate the approximate (since when measuring measurements are inevitable) the cube "Sockeys" with a length of 6 m and 200 mm width. We make the translation, it turns out: width - 0.2; Thickness - 0, 04 (m).
• Consequently, the cubature of 1 edged board with the specified parameters - 6 x 0.2 x 0.04 \u003d 0.048 m 3. The technique is simple, the main thing - do not forget all the sizes to translate into "M".
• If you need to calculate how many boards in Cuba, then an arithmetic action is made - 1 m 3 is divided into the cub.
• In our example - 1 / 0.048 \u003d 20.83. Round up to an integer - 21 pieces.

2. Unedged products.

Side faces are not processed. Products in packs are laid out, as a rule, with a balance. This means that wood can be of different breeds, and sizes (especially the width of the workpiece) differ. Calculate the volume of the stack in this case is quite difficult. Should:

• Carefully inspect the pack. Task - Select 2 Major Boards. Moreover, one is the most narrow, the other is the widest one.
• Remove from each of all sizes and calculate the averaged values \u200b\u200bfor length, widths and thickness.

Example. The width of one billet is 15 cm, the other - 35. We fold and divide in half - (15 +35) / 2 \u003d 25 cm. For further calculations, we translate into meters - 0.25. By the same method, other average linear parameters are determined.

What is the feature of calculations for umbered sawn timber? They have uneven side faces. Consequently, due to curvature, the adjacent of the samples to each other is not so dense. As a result - gaps and emptiness. Therefore, a correction coefficient is taken, which largely depends on the moisture content and the wood. Its minimum value is 0.62, the maximum is 0.7.

In practice, the quality of materials is determined by "on the eye", therefore the amendment takes the average - 0.66. To obtain the final result, it is necessary to multiply the resulting cube to the specified coefficient.

If working with a large stack, then the probability of error in the calculations increases sharply. In order not to overpay, it is advisable to store the boards in the packs of pieces of 10. For each of them, measurements are performed with subsequent calculations of the cubic.

According to the same calculation methodology, it is also made for Opapol (Gorny). The difference is only in the coefficient. Its value lies in the range of 0.48 - 0.74.