During construction work related to the use of lumber from coniferous trees, the correct specific gravity calculations are very important. pine wood. In contrast to other diverse building materials, this species do not have a single specific weight that somewhat complicates the selection process. The fact is that wood pine, like any wood, is natural material porous type. Accordingly, depending on the variety of pines and from the percentage ratio of humidity and the proportion of pine is changed.

As mentioned above, the main parameters affecting the volumetric weight of the pine is humidity. For example, the highest rate of specific gravity is still untouched, growing pine. This is due to the fact that the tree requires a large humidity for growth. In this case, the humidity is simultaneously a useful substance and carrier of others, no less useful, vitamins and minerals. The amount of moisture is entirely depends on the variety of pine, the season of the workpiece and terrain. Humidity indicators of living pines can vary from 29% to 81%. The lowest indicator, respectively, dried pine, as the humidity in this state tends to zero.

Weight table 1 m3 pine depending on its humidity.

It is very difficult to determine the percentage ratio of moisture with remedies. And it is very an important indicator To determine such a parameter as the specific weight of the pine cubic meter. Usually, these procedures are held in special technological laboratories.

The easiest way, when buying a material, clarify the humidity from the manufacturer. After that, with the help of the table presented, find out the weight of the pine cube with a flag of 5% to 90% and the density of the material:

Specific gravity and pine density depending on humidity

Pine moisture percentage	Specific weight (kg/ m3)	Density (G./ cm3)
Standard, from 10 to 12%	500 - 505	0,5 - 0,505
1 - 5 %	480	0,48
12 %	505	0,505
15 %	510	0,51
20 %	520	0,52
25 %	540	0,54
30 %	550	0,55
40 %	590	0,59
50 %	640	0,64
60 %	680	0,68
70 %	720	0,72
78 - 90 %	750 - 820	0,75 - 0,82
80 %	760	0,76
100 %	850	0,85

Practical importance and importance.

Among the coniferous building materials are worthwhile, dried, dry and raw pines. However, these terms do not give a certain accurate value of humidity, so it is extremely important to know clear figures. For example, the requirements for the use of pine woven is not provided by legislative acts. But, when performing certain works, GOST establishes humidity rates, for example:

in the manufacture of structures and products intended for accommodation on the separated area, wood is used with humidity from 11 to 14%;

for the manufacture of structures and housing products, wood is used with humidity from 8 to 10%;

for parquet - Wood with humidity from 6 to 8%.

Softwood sawn timber is considered easier than produced from hardwood. They differ simplicity of processing and durability - resistance to rotting, and therefore are often used for carved finish of the facade. In addition, it is from coniferous rocks that produced the longest timber (more than 6 meters). It is not surprising that they traditionally enjoy high demand.

The weight of sawn timber depends on the tree of wood and humidity.

However, the definition of their weight is not such a simple matter. Although the main coniferous breeds - Pine and spruce - obviously lighter than oak or beech, in fact, if there is a task of transporting a significant amount of lumber in road transport, you can wait for a catch. "Fresh" wood can often have a difficult-scale weight: sawn timber, depending on the processing phase, as well as from the forest site, on which trees were grown, can vary greatly by properties. Here you need to understand especially.

Weight of coniferous sawn timber according to GOST and in practice

First of all, the humidity plays a decisive role in the properties of wood. Raw wood and dried may vary in the density twice. This is especially true for coniferous rocks.

The raw forest - ate or pine - the resin gives an extra mass. Humidity depends on the cutting season, from the conditions of growth, from the part of the trunk, from which lumber produced.

In particular, with regard to pine, wood, prepared after the middle of winter (January), will be 10-20% lighter than autumn. If the forest site is located on the territory with highly groundwater (closer than 1.5 m to the surface), the tree will be "overloaded with" water, especially the lower part of the barrel. On the other hand, the "silent" forest is the one with which the resin was collected - it will be more than 1.5 times easier. Needless to say, from the humidity of the climate and the like circumstances, the weight of 1 m3 of freshly fed forest will also depend highly.

In the processed form, lumber are more or less aligned by mass, but still those that are made from the bottom of the trunk, with a large share of the likelihood will be harder: they are initially more wet and with the same drying will retain more water. In addition, according to statistics, the bar turns out to be easier for him in the cube of the boards (especially unedged), even made from the same logs: the core of the trunk, from which the timber is peeling, from nature more loose, the boards are made not only from the core.

In short, the mass of raw coniferous sawn timber differs from the mass of dry very much. On average weight of one cubic meter of dry pine - 470 kg, and raw - 890 kg: the difference is almost 2 times. Weight 1 m3 dry ate - 420 kg, and weight 1 m3 raw - 790 kg.

According to GOST, 12% is considered standard wood humidity. In such conditions, the fir has a density of 450 kg / m3, pine - 520 kg / m3, they relate to easy breeds. Among the coniferous fir Siberian is even easier: 390 kg / m3. Nevertheless, more severe breeds of conifers are found: the larch refers to the average for the density of wood varieties, the weight of 1 m3 - 660 kg, it exceeds the birch and is almost not inferior to the oak.

Flovka72 company conducted an experiment, we weighed 1 share cube (stolester) of birch birch blades, natural humidity, ~ 50%. We will tell about the results of this experiment in more detail below.

This experiment in no way apply for the title - "Scientific" or "100% objective"Rather, there is something mean between information from the Internet and laboratory research. But nevertheless, this is the first step towards the truth and objectivity.

Next time we will repeat the experiment and try to find a moisture meter, as well as to shoot the whole process on the video.

If short, results

With moisture, ~ 50% and the length is linged ~ 50 cm:

• 1 share cubic weighs ~ 561 kg;
• 1 dense cubic cube weighs ~ 790 kg.

In the text below, we disclose the essence of the experiment in detail. The calculation is made on the basis of information from the GOST "A 3243-88 and a dashboard reference book.

Why do we have it?

Small retreat

The volume of firewood in strokes is measured by multiplying the length, widths and height of the linen. But, the concept of "1 share cube of firewood" is pretty blurry, because Firewood in a field can be laid with different laying density And there is no GOST or regulations that would explain what "laying density" is and how to measure it. That is, the same amount of firewood (1 conditional stolester) you can set from ~ 0.7 to ~ 1.3 of the strokeDepending on the density of laying and condition of the lamps (their curvatures, the presence of bitch).

For clarity, look at the photo below. Obviously, on the right of firewood, thoroughly and the number of shelters in such a field is larger than in the one that on the left. At the same time, in both cases, the volume of firewood in the strokes will be the same, but the mass is different. Those. In fact, the number of firewood on the photo on the left is less.

In the photo above, please do not pay attention to different type Woods, this image demonstrates the density of styling of firewood in a field.

Specific

Sometimes we have disagreements with customers in the volume of firewood. We brought firewood in laying in one volume, the client shifted the firewood into his field, measured and it turned out less than the initially declared.

In the example above, disagreements, almost always, arise due to the density of the laying. Therefore, we decided weigh 1 share cube of birch firewood, and its weight (mass) to correlate with the data, which are presented in Guest 3243-88 and in the Handling Directory, Moscow, Forest Industry Publishing, 1980

By comparing the weight of our worldwood stapler with data from the above indicated sources, we will understand whether we are enough tightly laying firewood into the car before shipping them to the buyer.

Sequencing:

1. First we will launch 1 share cube.
2. Weigh this cube on the scales.
3. We obtained we compare with data from the GOST 3243-88 and the dashboard reference book.

According to different sources, the humidity of fresh birch can vary from 60 to 80%. We buy a woodcutting birch, which is harvested (spinal) from 1 to 4 months ago from the moment when it is brought to us for subsequent processing. The humidity of this, birch on average is 40-50%. We will make a calculation based on 50% humidity.

In the scaffolding directory, the weight of a dense cube of ordinary birch at a humidity of 50% is 790kg. To transfer the weight of the stroker in a dense cube (or vice versa) you need to apply the coefficient. We will take it from GOST 3243-88, with a length of it up to 0.5 meters of split hardwood - the coefficient is 0.71.

790 * 0.71 \u003d 560.9 kg

Those. The mass of our cooler birch wood staples should be at least 561kg.

Weigh

Conclusions and comments

First of all, we wanted to check ourselves, because Sometimes there were doubts about honesty towards our customers of firewood. Now doubts dispelled. Our laying density and wood volume in folding cubic meters complies with the necessary requirements.

If you turn to the dashboard reference book again (Note 1), it is obvious that not always the weight of 1 share cube with a 50% humidity will be 560.9 kg, because The weight of one dense cube is 790kg - is averaged value and can vary from 553kg to 1027kg. And, consequently, 1 stapler birch birch coat (taking into account the coefficient of 0.71) it can weigh from 392kg to 729kg. This is probably due to the different density of trees and the field.

Of course, this experiment cannot be considered 100% objective, because At a minimum, moisture meter needs to determine humidity. Forest we can have a different moisture because Suppliers a lot and dates for the workpiece and supply in all are different, respectively, the moisture content of the forest may vary from 30 to 60%.

If you have wishes or comments on this material - please write to our email: [Email Protected]website.

When organizing a cargo transportation forest, wood density is an important indicator in the selection of forestry and calculating the cost of transportation. This will help to avoid overload, which will apply from fine accordingly.

On the weight of M3 wood, the density of the material has a special value, respectively, to properly solve the issues, it is necessary to determine the density value. Distinguish two types of density: volume weight (the density of the structured physical body) and specific gravity (Density of wood substance).

Volumetric weight of wood

The weight of the cubic meter of wood depends on the tree and humidity breed.

Calculator calculating the bulk weight of the tree.

Tree Acacia White Birch Beech Vozm Oak Grab Spruce Ordinary Maple Lipa Larch Olha Walnut Walnut Fir Siberian Siberian Fir Caucasian Pine Sung Pine Cedar Poplar Casual Ovy

Volume, m3:

Specific wood

Wood material is called a mass of solid wood materials without natural voids. This type of density is measured in laboratory conditions, as it requires additional measurements, impracticable under normal conditions. For each wood of all species and tree breeds, this value is a constant and is 1540 kg / m3. However, wood has a multicellular fibrous structure of a complex type. Walls made of woody plays the role of a frame in the structure of wood. Accordingly, each breed and species of trees have cellular structures, shapes and sizes of cells vary, as a result of which the proportion of the tree will be different, as well as the weight of the M3 of the tree.

Also, moisture has a large role in changing the specific weight of the wood. Due to the structure of this material, with the increase in humidity, the wood density increases. However, this rule does not apply to the density of the wood substance.

Table of wood density of different humidity (kg / m3).

№	Breed of wood	Moisture percentage,%
		15	20	25	30	40	50	60	70	80	100	Fresh *
1	Larch	670	690	700	710	770	820	880	930	990	1100	940
2	Poplar	460	470	480	500	540	570	610	650	690	760	700
3	Beech	680	690	710	720	780	830	890	950	1000	1110	960
4	Elm	660	680	690	710	770	820	880	930	990	1100	940
5	Oak	700	720	740	760	820	870	930	990	1050	1160	990
6	Hornbeam	810	830	840	860	930	990	1060	1130	1190	1330	1060
7	Spruce ordinary	450	460	470	490	520	560	600	640	670	750	740
8	Walnut walnut	600	610	630	650	700	750	800	850	900	1000	910
9	Linden	500	530	540	540	580	620	660	710	750	830	760
10	Acacia Belaya	810	830	840	860	930	990	1060	1190	1300	1330	1030
11	Alder	530	540	560	570	620	660	700	750	790	880	810
12	Maple	700	720	740	760	820	870	930	990	1050	1160	870
13	Clean ordinary	690	710	730	740	800	860	920	930	1030	1150	960
14	Fir Siberian	380	390	400	410	440	470	510	540	570	630	680
15	Pine ordinary	510	520	540	550	590	640	680	720	760	850	820
16	Fir Caucasian	440	450	460	480	510	550	580	620	660	730	720
17	Pine cedar	440	450	460	480	510	550	580	620	660	730	760
18	Birch	640	650	670	680	730	790	840	890	940	1050	870
19	Aspen	500	510	530	540	580	620	660	710	750	830	760

* Fresh. - Fresed tree

Before carrying out any construction or repair, the calculation of the required amount of material always produces. For example: bricks, metal rolling or lumber: unedged, edged board or lining. Usually the seller performs wood delivery services, but it happens that there is no such possibility. And this question has to be solved by the buyer itself: what kind of car you need to order to bring the required amount of forest to the construction site?

Features of sawn timber

If it even knows the amount of wood in cubic meters, then for a carrying capacity, the choice of the car will need to count more. Even knowing how much a dry boards cube weighs, the mass of the cubic meter of material on the market can differ significantly. And it will be not only a breed of wood, for example: it's either a spruce, birch or cedar, but also a location of the cut, the humidity of the surrounding air, and even the time passed from the date of the cut. The weight of a cubic meter unit of the same tree will also differ from the degree of material processing. We have a mass of round, with the same conditions, there will always be less than the mass of the unedged forest. This is due to the fact that the density of laying material in one Cuba will be different. Rounds are not possible tightly folded on each other, large voids will remain. The same applies to the unedged board. The surface is tightly not squealing from the side.

Therefore, when calculating the carrying capacity of transport, you need to focus on the transport possible maximum weight of the cargo. So you need to find out how much weighs the cube cutting board from the pine of natural humidity? Since this state of the tree during its cut, which means maximum humidity and density.

Indicators affecting the weight of the sawn timber

Wood moisture is a very important indicator to pay attention to. With its high degree, the tree swells, and at low, on the contrary he dries. Everything construction works It is recommended to perform with an already dried sawn timber, in which the indicator of moisture does not exceed 15-20%. Otherwise, the established raw forest, with time, firing, will change its geometric dimensions (decrease) and thereby disrupt the integrity of the construction.

The dried wood becomes more durable, well sufficiently finished, is not subject to mold and insect, it retains its construction qualities for a long time. The remaining bark is removed before drying. This is necessary for uniform drying and eliminating damage to insects (bugs of coredies).

Drying of the forest is carried out by experts outdoors. The forest is placed in the stack on the gaskets between the rows so that the air freely passes and dried the boards from all sides. It is advisable to place the place of drying in a place where the straight sun rays do not fall on the material, but there is good ventilation. The top row of the stacks must be squeezed by cargo to prevent deformation.

Weight calculation

Now we will calculate the weight of the most common sawn timber with which you can face the market.

Mass calculation will be performed using the calculator, according to the formula M \u003d V * ρ, kg, where:

• V- required for calculating the volume of material, m3. In our case, this value is 1 m3;
• ρ is the density of wood, kg / m3. For freshly served pine, the value is 820 kg / m3.

Substituting in the formula, we get:

Similarly, knowing the density of the material, you can calculate: how much the cube boards from larch:

This means: no matter what size edged board:

• 150x150x6000;
• 25x100x6000;
• 25x150x6000;
• 50x150x6000.

Their weight in one Cuba will be approximately equal, the main thing is that the composition of wood, as well as the humidity indicator remained unchanged, there will differ only on the number of boards.

The question arises, how much is the car dry boards of the same pine? Such a state of wood is accepted with its humidity up to 20%. In this case, the density is 520 kg / m3.

The difference in the weight of one cube between the pine natural humidity and dry will be 300kg! But no 1 m3 is purchased for construction, and for example 100 or 500. Accordingly, the vehicle load capacity increases by 30 or 50 tons!

Therefore, choosing a sawn timber, it is important to know the humidity of the board. In order not to make a mistake in choosing transport or the number of flights needed to transport the entire forest.

rems-info.ru.

How many weighs 1 cup cube wants to know people who are engaged in the construction of their homes or giving.

How much will weigh the cube boards of natural humidity?

1 Cube Board Weighs 800-1000 kg (depending on the tree of wood)

Now you know how much weighs the cube of the boards of natural humidity in tons and you can accurately calculate the right amount.

Previous article Sometimes weighs the cube cube? Next article Sometimes weighs pine cube?

ktoikak.com.

How much does the cutting board weigh?

We offer you a weighing table of the main tree species.

www.xn - 7sb2akllgi.xn - P1AI

How to calculate the board in the cubes.

The edged board differs from the unedged in that the cross section has the form of the right Rectangle. This allows you to accurately put it in the stacks, packaging in even ligaments, and rather accurately determine the cube, that is, the volume of packaged materials. If you want to determine the weight of the packaging, or one cubic meter, it is sufficient to multiply the volume on the density, which is a reference value, and depends on both the breed of wood and its moisture, that is, dryness degrees.
For the most frequently used in the construction of wood breeds, you can make a table showing how much a cutting board cube weighs:
Type of lumber
Weight of one cubic meter, kg
Crude Pine
890
Dry pine
470
Raw fir
790
Dry fir
450
As can be seen from the table, on how much the cutting board cube weighs, humidity affects very substantially. Such a large dependence is due to the fact that in the cellular structure of freshly spilled wood, water is present in large quantities, and with incorrect drying, its rapid evaporation can lead to significant curvature of the geometric shape of the boards, bend them.
As a result, it can be argued that the weight of the cutting board cubic meter is actually determined by the wood species, taken to one of the categories.
The pine, fir and other conifers, as well as a poplar belong to light wood. Their average density, that is, the weight of the cubic meter is hesitated around the figure of 500 kilograms.
Middle breeds - cubic meter ash, beech, birch weighs about 650 kilograms.
Heavy breeds, such as Oak Il Grab, have a density of more than 750 kilograms per cubic meter.

How much one edged board weighs.

How much one edged board weighs. The most frequently asked question on search engines inquiries is how much one cube weighs, as a result, one edged board. I continue the cycle of articles devoted to the edged lumber.
At the insistence of colleagues and regular visitors to the site, I continue the cycle of articles dedicated to the sawn timber. This article is a continuation of the article "How much one bar weighs." We are talking only about pine, While growing in the middle part of Russia. Immediately make a reservation that the pine growing in Siberia has a more dense texture, and weighs more and is an order of magnitude more expensive. You can even distinguish it visually but this is the topic of the next article.
The weight of one meter of cubic fresh and recycled pine sawn lumber is about 860kg.
I will give calculations in the form of a table in cross sections of the GOST 8486 board and remind the calculation formula.
Cross-section board in mm. QUANTITY, PCS. In 1m3 mathematical action Weight of one board in kg.
logo Tiu.ru300x50x6000
11.1 860kg: 11/1Sht. 77.5
logo tiu.ru250х50х6000
13.3 860kg: 13.3pc. 64.7
logo Tiu.ru200x50x6000.
16.6 860kg: 16,6pc. 51.8.
logo Tiu.ru150x50x6000
22.2 860kg: 22.2pc. 38.7
logo Tiu.ru100x50x6000
33.3 860kg: 33.3pc. 25.8.
logo Tiu.ru200x40x6000
20.8 860kg.: 20,8sc. 41,4.
logo Tiu.ru150x40x6000
27.7 860kg.: 27.7pc. 31.04
logo tiu.ru100x40x6000
41.6 860kg: 41,6pc. 20.7
logo Tiu.ru150x30x6000
37.0 860kg: 37.0pc. 23,2
logo Tiu.ru200x25x6000
33.3 860kg: 33.3pc. 25.8.
logo Tiu.ru150x25x6000
44.4 860kg.: 44.4pcs. 19.3.
logo Tiu.ru100x25x6000
66.6 860 kg.: 66,6 pc. 12.9
To determine on your own how much will weigh the cutting board of a long 4000mm and 3000mm, or other. I will give an example of a calculation formula in which prerequisite The calculation is the number of pieces in 1m3.
For the board, say 150x25x3000mm:
1: 0.15: 0.025: 3 \u003d 88.8 pcs. in 1m3.
860kg. : 88.8 pcs. \u003d 10 kg.
Weight of this board with a cross section of 150x25 long 3000mm. 10 kg.
For boards 150x50x4000mm:
1: 0.15: 0.05: 4 \u003d 33.3 pcs. in 1m3.
860kg. : 33.3 pcs. \u003d 25.8 kg.
Weight of one board with a cross section of 150x50 long 4000mm. 26 kg.
At the end of the article, I would like to specifically note that these calculations in Moscow in the markets are the subject of large and small fraud, for this every time you need to personally check the "stated lumber sizes". Like this! (see photo)
The above calculations in the tables are valid only for lumber of clear "declared sizes" with proper geometry, i.e. the corresponding GOST 8486-86.
For the "air or Armenian version" of a bar and boards, which is selling on the cheap on any sales on specials. Prices need a separate approach, since the number of pcs. In 1m3 each time you need to calculate separately according to the real dimensions that have a bar and board.

Specific and voluminous weight of wood - table

There are a specific weight of wood (solid wood masses without voids) and the proportion of wood as a physical body. The proportion of wood substance is higher than the unit and is little dependent on the tree breed; On average, it is taken equal to 1.54. The proportion of wood substance is important when determining the porosity of wood.
Instead of the concept of the specific weight of wood as a physical body, that is, the relationship of its weight to the weight of the water, taken in the same volume at 4 °, in practice, use the volume weight of wood. The volume weight (weight of the wood volume) is measured in g / cm3 and is reduced to normal moisture of wood - 15%.
In addition to bulk weight, sometimes used the same volumetric weight, or conditional volumetric weight. The conditional volumetric weight is the ratio of the weight of the sample in a completely dry state to the volume of the same sample in the fastened state. The value of the conditional volumetric weight is very close to the amount of volumetric weight in a completely dry state. The ratio between the conditional volumetric weight (γus) and volume weight in a completely dry state (γ0) is expressed by the formula
Γ0 \u003d Γus / (1-υ)
where υ is a complete volumetric percentage
γ0-bulk weight of absolutely dry wood.
Volumetric weight of wood.
The conditional volumetric weight has before the surround weight, the advantage that it does not depend on the value of the heathene and does not require the recalculation of 15% humidity. This makes it possible to significantly simplify the calculations and provides more uniform results when determining the Γus of several samples.
The volumetric weight of wood depends on the humidity, from the width of the one-year layer, from the one position occupied the sample in the height of the trunk and in diameter. With increasing moisture, the bulk weight increases.
Changes in the volume weight of wood when drying to moisture, corresponding to the fiber saturation point (23-30%), is proportionally humidity; After that, the volumetric weight begins to decrease slower, as the volume of wood decreases. With an increase in the moisture content of wood there is a reverse phenomenon.
The numerical dependence between the bulk weight of wood and humidity is determined by the following formula:
γw \u003d Γ0 (100 + W) / (100+ (Y0 - YW))
where γw is the desired volumetric weight with a moisture content of W, γ0 - volumetric weight in absolutely dry state, W-moisture of wood in percent,
Y0-complete volumetric drying percentage when drying to absolutely dry condition and
Yw- Volumetric sweep in percent when drying a tree to w% humidity.
The volumetric weight of wood at its humidity with sufficient accuracy can be easily determined by the nomogram proposed by N. S. Celyugin (Fig. 11). Suppose that it is required to determine the weight of 1 m3 of pine wood with a humidity of 80%. Table. 41a we find the volumetric weight of pine wood at 15% humidity, equal to 0.52. On the dotted horizontal line, we find the volumetric weight point of 0.52 and · from this point, we go to the corresponding inclined line of the above volume weight up to the intersection of it with a horizontal line, showing the humidity of 80%. From the intersection point, we lower the perpendicular to the horizontal axis, which will show the desired volumetric weight, in this case 0.84. In tab. 5 The weights of the weight of the wood of some breeds depending on the humidity. Restoration of furniture
Specific and voluminous wood weight Table Figure13
Fig. 11. Nomogram for determining the volume weight of wood with different humidity.
The volumetric weight of wood depends also on the width of the one-year layer. Hardwood has a bulk weight decreases with a decrease in the width of the annual layers. The greater the average width of the annual ring, the greater the bulk weight of the same breed. This dependence is very noticeable from ringing rocks and somewhat less noticeable in scattered. In coniferous rocks, the inverse relationship is usually observed: the bulk weight increases with a decrease in the width of the annual rings, although there are exceptions to this rule.
The volumetric weight of wood decreases from the base of the barrel to the top. In middle-aged pines, this fall reaches a value of 21% (at an altitude of 12 m), the old pine comes to 27% (at a height of 18 m).
In the birch, the decrease in volume weight at the height of the trunk reaches 15% (aged 60-70 years, at a height of 12 m).
Patterns in the change in the volume weight of wood in the diameter of the barrel is not observed: some breeds, the volumetric weight is slightly decreased in the direction from the center to the periphery, the others are slightly increasing.
The big difference is observed in bulk weight in early and late wood. Thus, the ratio of the volume weight of early wood by weight late at Oregon pine is 1: 3, in pine 1: 2.4, larch 1: 3. Therefore, in coniferous breeds, the volumetric weight increases with increasing the content of late wood.
Wood porosity. Under the porosity of wood, the volume of pores in percent of the total volume of absolutely dry wood is understood. Porosity depends on the volume weight of wood: the greater the bulk weight, the less porosity.
For the approximate determination of porosity, you can use the following formula:
C \u003d 100 (1-0,65γ0)%
where C is the porosity of wood in%, γ0 - the bulk weight of absolutely dry wood.
Table 5 - Approximate weight 1 m3 wood of different breeds in kg
Tree threshold Wood moisture condition
12-18% 18-23% 23-45% freshly powerful
Acacia, beech, Grab, oak, ash 700 750 800 1000
Bereza, Ilm, Karagach, Chestnut, larch 600 650 700 900
Iva, Alder, Aspen, Pine 500 550 600 800
Spruce, cedar, linden, fir, poplar 450 500 550 800

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kazap.ru.

how much will weigh the cube of pine of natural humidity

Weight 1 Cuba Pine Natural Humidity

In chapter Other When the question weighs 1 cubic meters. m pine board? The author's best answer is The cutting board differs from the unedged in the cross section it has the form of the correct rectangle. This allows you to accurately put it in the stacks, packaging in even ligaments, and rather accurately determine the cube, that is, the volume of packaged materials. If you want to determine the weight of the packaging, or one cubic meter, it is sufficient to multiply the volume on the density, which is a reference value, and depends on both the breed of wood and its moisture, that is, dryness degrees.
For the most frequently used in the construction of wood breeds, you can make a table showing how much a cutting board cube weighs:
Type of lumber
Weight of one cubic meter, kg
Crude Pine
890
Dry pine
470
Raw fir
790
Dry fir
450
As can be seen from the table, on how much the cutting board cube weighs, humidity affects very substantially. Such a large dependence is due to the fact that in the cellular structure of freshly spilled wood, water is present in large quantities, and with incorrect drying, its rapid evaporation can lead to significant curvature of the geometric shape of the boards, bend them.
As a result, it can be argued that the weight of the cutting board cubic meter is actually determined by the wood species, taken to one of the categories.
The pine, fir and other conifers, as well as a poplar belong to light wood. Their average density, that is, the weight of the cubic meter is hesitated around the figure of 500 kilograms.
Middle breeds - cubic meter ash, beech, birch weighs about 650 kilograms.
Heavy breeds, such as Oak Il Grab, have a density of more than 750 kilograms per cubic meter.

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Hey! Here is a selection of topics with answers to your question: how much weighs 1 cube. m pine board?

Answer from Irina Saburova.[newcomer]
IN different firms The price may differ significantly. The main thing, in pursuit of the cheapness of quality, do not miss. Here is the link, by the way, excellent value for money. Plus discounts make, if you buy a lot of volume and very sensible advice give if you are not very good in question.

Answer from Alexander Lesterg[newcomer]
The company "Lesterg" is a producer of sawn timber. The edged board occupies a significant segment in the total volume of products produced by our company, since construction material Of the natural wood, the most in demand in the construction sector. We offer to buy edged board from the manufacturer at a bargain price.
1 m3 - 5000 p
link

Answer from Osipov Alexander[newcomer]
Price on all size here Link

22oa.ru.

How much is the pine cube weigh? | Ktoikak.com.

How much will weigh 1 cube pine want to know people who are engaged in the construction of their homes or giving.

How much will weigh the Cube of Pine Natural Humidity?

1 cube pine weighs 600-800 kg (depends on humidity)

• Dry - wood with a humidity of 10-18%, which has passed the technological drying or a long time stored (dried) in a warm dry room;
• Air dry - wood with a moisture content of 19-23%. This degree of humidity is achieved with long storage Woods under certain natural conditions, i.e. without the use of special drying technologies;
• Crude - wood with humidity, 24-45%, which is in the process of drying from a freshly powerful state to equilibrium;
• Freckled and wet - wood with a humidity of more than 45%, recently searched or for a long time in water.

Now you know how much the pine forest cube weighs and you can accurately calculate the right amount.

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