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How to calculate the volume of timber. Calculation of a house made of timber. Factors influencing the amount of timber required to build a house

Having come close to the cherished goal - to build wooden house, you should familiarize yourself with the quality characteristics and procedure for calculating timber. Selecting high-quality lumber that meets construction standards and correctly determining the required quantity is the primary task of a difficult path.

Types and purpose of timber

Housing construction is carried out using glued or profiled timber. The quality characteristics of the product depend on the production process of the material. Source of profiled timber – conifers trees. Depending on the size and purpose of the building, 3 main options for standard timber are used:

• a summer cottage or bathhouse is built from material with a cross-section of 100/100 mm;
• for medium-sized permanent housing, products with a cross-section of 150/150 mm are suitable;
• Cottages or houses of impressive size are built from 200/200 mm timber.

The length of the product is usually 6 m. It is possible individual order material with non-standard sizes. The front side of the beam can be arched or straight. Products are processed on machines with subsequent grinding of one side. Its location inside the home allows you to avoid subsequent wall finishing. The presence of spikes at the end of the beam provides an increase in the level of protection from moisture and cold of the future building, and also facilitates the process of its construction. Having completed the installation stage of the log house, it is given time to settle for shrinkage for a year. Pre-drying the timber in specially equipped chambers allows you to speed up the process by several months.

The production of laminated veneer lumber is significantly different:

• The log is pre-cut into pieces called lamellas.
• The boards are processed on planing equipment and placed in a drying chamber, where, under gentle conditions, the moisture content of the material is reduced to 10%.
• The material is re-planed, sorted and glued into timber using special waterproof compounds using hydraulic equipment.

Note! Laying boards opposite to the cross-section of the fibers relative to the adjacent product increases strength finished material and resistance to rotting processes. These actions bring laminated veneer lumber to a leading position in terms of strength relative to profiled products.

It is possible to improve the strength indicator by using profiled larch material, but this significantly increases the cost Supplies. In glued materials, there is an option when one larch lamella is combined with less expensive species during pressing. This trick allows you to increase quality characteristics laminated veneer lumber with a slight increase in its cost.

What other differences are observed in the material when in different ways production?

• The glued version is characterized by humidity around 10%. Pre-drying of the profiled product makes it possible to reduce the rate to the level of 20%, which is the reason for the increase in construction time due to longer shrinkage finished log house. However, a solid product is not subject to cracking, and with the glued production method there is a risk of minor cracks.
• Focusing on the significant difference in cost (profiled products are almost half the price of their glued counterparts), do not forget about subsequent finishing. Lamels are often left without additional processing, while they try to hide the profiled material with additional decor.
• Going deeper into the question environmental safety, it is worth noting that the profiled timber is completely harmless. The owner can independently select special impregnations that provide protection against rotting and fire. The connection of the lamellas is carried out by using adhesive composition, the quality and safety of which lies solely on the conscience of the manufacturer. Therefore, there is a possibility of chemical fumes causing negative impact on the condition of the residents.

As can be seen from the description, each of the materials has significant advantages and certain disadvantages. Stop at optimal option Only the owner of the upcoming construction is capable.

Methodology for calculating material for building a house

When designing housing made of timber, it is worth taking it into account standard sizes to minimize waste. In addition to the material for the log house, material will be needed for the pediment, partitions, floor and ceiling beams.

Basic calculation formula

Calculation of timber cubic capacity uses the following parameters:

• Section of timber. For the house they mainly use 150/150 mm timber, additional use insulation allows you to provide comfortable conditions for permanent residence V middle lane Russia.
• Housing dimensions: height and width, houses, number of partitions, rafters, floor and ceiling beams.

Let's say for one-story house 6x9 with a room height of 3 m and one partition you will need:

• We determine the perimeter: (6+9)x2 + 6 = 36 m;
• We calculate the total area: 36x3=108 m;
• Required timber volume: 108x0.15=16.2 m3.

Some amount of material is saved by cutting out door and window openings. However, when purchasing, the volume of timber is always rounded to big side, taking into account the likelihood of defective products.

Calculation of volume for floor and ceiling beams

The amount of material required for beams, joists and other elements directly depends on the size of the house and the type of rafter system. For ceiling and floor beams, 100/150 mm timber is sufficient. Referring to the dimensions of the future structure described above, calculating the amount of timber for the floor and ceiling separately includes the following steps:

• With a distance between beams of 1 m, the number of products: 9/1-1=8 pieces;
• At standard length 6 m, required: 8x6 = 48 m of timber;
• We determine the volume: 0.1x0.15x48=0.72 m 3 ;

Taking into account rounding, in general, 1 m 3 of material will be required for the floor and ceiling beams.

Rafter system

In suburban housing it is mainly used gable roof. It is important to design the slope correctly: a small angle will cause snow retention; if the roof is too high, the wind load will increase. It is optimal to stay at 45 degrees. The recommended pitch between the rafters is 0.6 m, the timber is taken with a cross-section of 100/150 mm. More frequent pitches allow smaller thicknesses to be used. So:

• Using the Pythagorean formula, we determine the length rafter leg, based on the width of the house being 6 m. It is equal to 4.2 m; the triangle will take 8.4 m of material.
• Taking into account the length of the future housing, the number of triangles: 9:0.6-1=14 pieces;
• Total length of material: 8.4x14=117.6 m;
• Volume of material with a cross section of 100/150 mm: 117.6x0.1x0.15=1.76 m3.

Don’t forget to make a supply of material taking into account possible waste. The easiest way to check the accuracy of your calculations is to use an online calculator. A more accurate answer can be obtained from the developer. Some companies provide cost estimation services for free.

When carrying out construction work on the construction of a residential building, a specialist must carry out big number various tasks, one of which is: drawing up and calculating the estimated cost to the final finishing of the premises of a residential building. It is mandatory to calculate the required amount of various building materials, which is quite difficult to do. Therefore, such knowledge - how many boards are in a cube - is very important for a specialist who is engaged in the construction of a residential building and wants to complete the work as efficiently and quickly as possible.

Buying club: existing types of boards

To calculate exactly how many board pieces are in a cube, you will need to know not only what exactly a board cube means, but it is worth understanding important point that exist different kinds boards and what is possible to purchase on modern market for performing various construction works. It should be noted that the cube of almost all materials, regardless of the type of material, is calculated in the same way, that is, according to one specific method. The types of boards have no influence on the calculation of the cubic capacity of this building material.

Non-grooved types of lumber are: timber, various edged boards, as well as unedged boards (they are an exception when calculating cubic capacity, because this process occurs a little differently). Tongue-and-groove types (which have special grooves for making joints) include: modern lining, blockhouse, flooring material, as well as imitation natural timber. When you choose a tongue-and-groove type of building material for purchase, then you will need to pay attention to the fact that when making calculations, only the working width of the board without a tenon is used. If we talk about a blockhouse (imitation log), then when calculating the cubic capacity, only the thickness at its highest point is taken.

How many boards are in 1 cube: performing the calculation

Any person, even from his school days, understands how cubic capacity is calculated. For this procedure, it is necessary to calculate quantities such as: length, width and height. A similar principle is used to calculate the cubic capacity of 1 board. When performing such calculations, it is recommended to convert all available values ​​into meters. The cubic capacity of 1 board, which has a cross-section of 150x20 mm. and a length of 6 m, is calculated as follows: 0.15 multiplied by 0.02 and 6, so that the cubic capacity of this board will be 0.018 cubic meters.

Let's apply the volume formula V= L*h*b (where L is length, h is height, b is width).

L= 6.0; h= 0.02; b= 0.15.

Thus, V= 6.0*0.02*0.15 = 0.018 m3.

To determine how many boards are in one cube: divide 1 m3 by cubic capacity (the volume of one board).

1 m 3 / V = ​​N pcs.

1 m 3 / 0.018 m 3 = 55.55 pcs.

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

Finding out the cost of a certain type of board when the values ​​of its volume is known is quite easy: 0.018 multiplied by the price of 1 cubic meter. When 1 cube of a certain type of board costs, for example, 5,500 rubles, then the cost will be 99 rubles. At this moment of calculation, there is some trick of sellers and managers in construction stores, because the cubic capacity of the material is rounded to some integer values.

Such rounding can lead to such a moment that the price of 1 board (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 have a nominal length of 6 meters, the actual length is 6.1 - 6.2 m, which is not taken into account when selling this building material. This also applies to the purchase of a significant number of boards. This can be seen quite clearly if we use a 150x20 mm board as an example. The number of boards in a cube is a value of 55.5 pcs. But, in a cube they count 55 pieces, which when performing the calculation will have a value of 0.99 cubic meters. In fact, it follows from this that the overpayment for 1 cubic meter of this popular building material can amount to 1% of the real price. For example, 5500 instead of 4995 rubles.

To calculate the cubic capacity for a continuous type of board, slightly different methods are used. When we are talking about buying 1 board, then measuring its thickness, as well as the total length, is carried out in the same way as when choosing edged building material. In this case, the average width is taken for calculations - between a large value and a small one.

For example, when the width of the board at one end is 25 cm, and at 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 similar boards for construction, then you will need to lay them out so that the wide one does not differ from the narrow one, more than 10 cm. The main length of this material in the laid out stack should be approximately the same. After this, using a regular tape measure, an accurate measurement is made of the height of the entire existing stack of boards, and the width is measured (approximately in the very middle). The result obtained will then need to be multiplied by a special coefficient, amounting to a value from 0.07 to 0.09, directly dependent on the existing air gap.

How many boards are in 1 cube: special tables

To calculate the exact number of boards of a certain width and length in 1 cubic meter, various tables are used. Below are several such specialized tables, which indicate the cubic capacity of the common and in demand types of this material today. Calculate the volume of various boards having various sizes, for example, material for constructing a fence on your site, you have the opportunity to independently use the existing formula, which is presented above.

Table of the amount of edged boards in 1 cubic meter

Board size	Volume of 1st board (m 3)	Number of boards in 1m 3 (pcs.)	Number of square meters in 1m2
Twenty
Board 20x100x6000	0.012 m 3	83 pcs.	50 m2
Board 20x120x6000	0.0144 m 3	69 pcs.	50 m2
Board 20x150x6000	0.018 m 3	55 pcs.	50 m2
Board 20x180x6000	0.0216 m 3	46 pcs.	50 m2
Board 20x200x6000	0.024 m 3	41 pcs.	50 m2
Board 20x250x6000	0.03 m 3	33 pcs.	50 m2
Twenty-five
Board 25x100x6000	0.015 m 3	67 pcs.	40 m2
Board 25x120x6000	0.018 m 3	55 pcs.	40 m2
Board 25x150x6000	0.0225 m 3	44 pcs.	40 m2
Board 25x180x6000	0.027 m 3	37 pcs.	40 m2
Board 25x200x6000	0.03 m 3	33 pcs.	40 m2
Board 25x250x6000	0.0375 m 3	26 pcs.	40 m2
Thirty
Board 30x100x6000	0.018 m 3	55 pcs.	33 m2
Board 30x120x6000	0.0216 m 3	46 pcs.	33 m2
Board 30x150x6000	0.027 m 3	37 pcs.	33 m2
Board 30x180x6000	0.0324 m 3	30 pcs.	33 m2
Board 30x200x6000	0.036 m 3	27 pcs.	33 m2
Board 30x250x6000	0.045 m 3	22 pcs.	33 m2
Thirty-two
Board 32x100x6000	0.0192 m 3	52 pcs.	31 m2
Board 32x120x6000	0.023 m 3	43 pcs.	31 m2
Board 32x150x6000	0.0288 m 3	34 pcs.	31 m2
Board 32x180x6000	0.0346 m 3	28 pcs.	31 m2
Board 32x200x6000	0.0384 m 3	26 pcs.	31 m2
Board 32x250x6000	0.048 m 3	20 pcs.	31 m2
Sorokovka
Board 40x100x6000	0.024 m 3	41 pcs.	25 m2
Board 40x120x6000	0.0288 m 3	34 pcs.	25 m2
Board 40x150x6000	0.036 m 3	27 pcs.	25 m2
Board 40x180x6000	0.0432 m 3	23 pcs.	25 m2
Board 40x200x6000	0.048 m 3	20 pcs.	25 m2
Board 40x250x6000	0.06 m 3	16 pcs.	25 m2
Fifty
Board 50x100x6000	0.03 m 3	33 pcs.	20 m2
Board 50x120x6000	0.036 m 3	27 pcs.	20 m2
Board 50x150x6000	0.045 m 3	22 pcs.	20 m2
Board 50x180x6000	0.054 m 3	18 pcs.	20 m2
Board 50x200x6000	0.06 m 3	16 pcs.	20 m2
Board 50x250x6000	0.075 m 3	13 pcs.	20 m2

Table of the amount of timber in 1 cubic meter

Beam size	Volume of 1st piece (m³)	Quantity 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 boards in 1 cubic meter

Calculation of timber for a house is necessary in order to determine the required amount of lumber for the construction of a rafter system, implementation formwork work and floor coverings of a construction site. Its correct calculation is especially important when building cottages from laminated or sawn timber.

How to calculate the amount of timber per house?

In order to correctly navigate the needs of lumber, it is necessary to make a structure design indicating the exact dimensions on which the length of the timber depends. Regarding its thickness, it is important to consider the following factors:

• for a private home or baths will do timber with a section of 200x200 mm;
• for seasonal construction it is possible to use wood with dimensions of 100x100 mm or 150x150 mm.

Based on the fact that the cost of wood building material is indicated in cubic meters, to calculate the exact number of pieces of logs in 1 cubic meter, you need to make a simple calculation:

1m3/Z/W/L, where

• Z - board width;
• W - board thickness;
• L is the length of the board.

The design of the house involves calculating the required volume of ceiling and floor beams, determining lumber for the rafter system, external walls, gables, and internal partitions.

Often, construction uses ceiling and floor beams with a cross-section of 100x150 mm using a pitch of 0.7 to 1 meter. In order to determine their quantity, you must use the formula:

• Ld is the length of the house;
• Ls is the length of the applied step.

Taking into account the fact that lumber is sold by the supplier in cubic meters, calculating the cubic capacity of a timber involves multiplying its cross-sectional area and linear length.

Calculation of timber for external walls and load-bearing partitions involves determining the area and thickness of the walls. Multiplying these parameters will give the total volume of timber required for the construction of the specified structural elements.

Timber cubic capacity calculator

To accurately calculate the cubic capacity of lumber for rafter system the use of special arithmetic algorithms will be required. The beam calculation calculator will greatly simplify the task. Correct definition the required building material guarantees the reliability of the construction of the building structure and savings in financial costs.

The program will allow you to calculate timber online by entering initial data. By changing the specified parameters, you can compare several projects and choose the most profitable one from a financial point of view. By processing the individual parameters of a house project, the calculator will make the most accurate calculation, eliminating the risk of overpaying for excess material. It is important to consider the possible percentage of defects, which is about 5% of the total volume of lumber.

About construction country house many people think, but most put it off until tomorrow due to not knowing how to calculate the amount of timber per house. Why? Yes, because the counting process itself is not free, and no one wants to pay for something that may not be realized.

Let's try to understand how to correctly calculate the amount of this product for construction yourself.

Product calculation for building construction

Factors that influence the numbers

The main thing to consider when calculating the amount of material per house is:

• what type of timber will be used in construction;
• how much do we need;
• how many pieces in 1 cubic meter;
• what is .

Calculation of lumber in cubic meters

Let's look at how to calculate the amount of timber in a cube using the most in a simple way, one might say, this is the basic principle of calculations. It should be noted that the example given is not exact. To spend more exact numbers, you need to have a project for your future home.

So, pay attention to the instructions:

1. Calculate the perimeter of the building.
2. Multiply the perimeter by the height.
3. Multiply the result obtained by the thickness of the product.
4. As a result, the result was the number of cubes of timber required to construct the building.

To calculate a product for interior walls, we use the same method. If desired, you can calculate not only the cubic capacity of the material, but also its quantity in pieces. Let's consider separate example, how to calculate the amount of timber for a bathhouse 3 m by 5 m with a height of 3 m.

Let's agree that during construction a size of 150 by 150 mm will be used.

Instructions:

• (3 width + 5 length) × 2 = 30 m – perimeter of the building.
• 30 perimeter × 3 height = 90 sq.m – wall area.
• 90 area × 0.15 material thickness = 13.5 cubic meters - needed to build a box from 3x5 timber 3m high.

Thus, the amount of timber for the walls is 13.5 cubic meters. But, it should be noted that window and door openings will reduce the amount of material used.

In most cases, masters do not take into account this moment, it is believed that it would be even better to add about 20% to the reserve; in the end we will get:

• 13.5 + 20% = 16.2 cubic meters will be required for this type of building.

Note!
When building a house from timber, the first crown should be slightly thicker than the main product used to build the walls.
It is not taken into account in our calculation; it must be calculated separately.
The first crown is laid from a thicker one, since in the future the weight of the entire house will fall on it; it is additionally recommended to treat it with machine oil or an antiseptic.

Calculation in pieces

By calculating how many cubes of lumber to build a house, you can easily find out how many pieces of timber you will need. This is the first thing you need when purchasing. Knowing exact amount pieces, you will protect yourself from possible fraud on the part of the selling company.

Let's look at the table of common sizes of this product 6m long:

100x100	1 PC. — 0.06 cube	16.67 pcs. cubed
100x150	1 PC. — 0.09 cube	11.11 pcs. cubed
150x150	1 PC. — 0.135 cube	7.41 pcs. cubed
100x200	1 PC. — 0.12 cube	8.33 pcs. cubed
150x200	1 PC. — 0.18 cube	5.56 pcs. cubed
200x200	1 PC. - 0.24 cubes	4.17 pcs. cubed

In the above example, where we indicated the cubic capacity of the timber for the bathhouse, we will carry out further calculations of the materials in pieces.

So, to find out the amount of material per house in pieces, we carry out the following calculation, for this we divide the amount of 13.5 cubic meters that is needed to build a bathhouse by the cubic volume of the timber used, in our case it is equal, based on the table, 0.135 cubic meters :

• 13.5: 0.135 = 100 pcs

Knowing correct amount products in pieces, you will not have to run around with a tape measure when purchasing and calculate the volume to find out whether you received the material correctly according to the invoice, you will only need to count the product individually.

The role of height and material thickness

Before calculating the quantity, you need to decide on the choice of thickness and height of the product.

The material can have different thicknesses and heights; here are the main dimensions:

• 100x100 mm.
• 100x150 mm.
• 150x150 mm.
• 150x200 mm.
• 200x200 mm.

With height, everything is simple, the higher the beam, the fewer inter-crown seams - they go faster construction works, and naturally, the number of pieces of material for building a house decreases. But width is more important, especially when building for everything seasonal residence.

Note!
Not all lumber manufacturers are honest with the buyer; sometimes it happens that a 150x150 mm timber actually has a size of 140x140 mm.
It’s not difficult to guess what this will lead to, if for a height of 3 meters you will need 20 pieces of timber measuring 150x150 mm, then for a size of 140x140 mm - 21 pieces and a half, and that’s one and a half crown rows.

When planning year-round accommodation It is recommended to use timber with a thickness of 200 mm in the house. Such walls need to be insulated, but for our climate something like polystyrene foam or mineral wool 10 cm thick.

When building a bathhouse, it is recommended to use a material thickness of 150 mm; it is quite sufficient for short-term temperature maintenance. Well, if you decide to build country house for summer holidays, then in this case walls made of 100x100 mm timber will be just right.

Advice!
During construction wooden house where no accommodation is planned all year round, the thickness of the timber is not important.
After all, such a building is needed only for short-term use and mainly in the spring and autumn.

Pay attention!
Despite the large thickness of the product, you will still have to insulate the walls.
After all, in order for the house to fully fulfill its thermal insulation properties The thickness of the walls should be about 50 cm.

Why do you need a house project?

When calculating the material for building a house important role plays the project of the house itself. After all, only in the finished project can you see not only appearance buildings, but also internal layout walls and elements that require additional calculation of the required material.

You can get a wooden house project in different ways:

• do it yourself;
• order from a specialist;
• buy finished project;
• buy online;
• find on the Internet.

It is possible to make a house project with your own hands, but it is difficult, as you need to have special knowledge. And the point here is not only to draw future home, you need to take into account the specifics of climate, soil, air humidity and other points.

Most correct solution– order a project from a specialist, the price for such services is not cheap, but this is the most the best option, the specialist will take into account all your wishes and possibilities of the area. This will protect you from many possible troubles, and will also have someone to contact if problems arise.

Advice!
Do not buy projects on the Internet from unverified persons; most often they sell those projects that are posted on the Internet for public use.

Conclusion

By making the correct calculations, you will ensure light construction. There will be no need to think later about where to put the extra products or, worse, to suspend construction due to their shortage.

If you still have any questions, watch the video in this article, you will not only learn how to calculate timber on a calculator, but also be able to calculate approximate cost future home. You will definitely have no doubts about your ability to calculate the material yourself.

A wooden house has a special appeal. In addition to its superior aesthetics, it has many other advantages, which explains the growing popularity of this type of housing. Preliminarycalculation of a house made of timber will help you accurately determine upcoming expenses and assess your financial capabilities for such a building.

Calculation of a roof in a house made of timber

Types of materials for wooden buildings

Before calculating a wooden building, you need to decide what material to choose for it. Currently, developers are offered the following lumber for this purpose:

1. regular (sawn) and profiled timber made of solid wood;
2. regular and profiled laminated wood timber;
3. calibrated (rounded) log.

These are the main lumber used in the construction of wooden buildings, but profiled laminated veneer lumber is considered the best among them. Its advantages are:

1. minimum residual moisture in the range of 10–18%, virtually eliminating shrinkage and deformation of wood;
2. ideal shape and precise linear dimensions of the material, which extremely simplifies and facilitates the assembly of the building;
3. increased strength compared to similar solid wood timber;
4. no need for additional sealing of the seams between the beams.

These characteristics do not greatly affect the total amount of material for the construction of the building - except that the consumption of timber will be slightly lower due to reduced losses due to waste.

Anyway preliminary calculation of a house made of timber at the building design stage will allow you to optimize the costs of future construction in terms of quantity and cost of material. In order to correctly calculate the consumption of timber and logs at the first stage, it is necessary to carefully prepare the building design and carry out its detailing, taking into account the layout, dimensions, locations for window and door openings.

General principles for calculating lumber for wooden houses

To calculate the total amount of lumber for a wooden building, you need to divide this procedure into three stages - according to the number of main structural parts of any building. Calculation of a house made of timber is made taking into account the following elements:

1. walls and partitions;
2. floors;
3. rafter frame.

For each of the named parts of the building, calculations are made, taking into account the purpose of each element. For example, an outwardly similar wall and an internal partition are assembled from timber different sections, therefore, the amount of material for structures of the same dimensions can vary by more than twice.

Calculation of materials for walls and partitions

Walls and partitions made of timber or logs form the frame of the house. These are the main load-bearing structures of the building, and the walls are also responsible for its thermal insulation. You can calculate the amount of lumber for walls and partitions using the following algorithm:

1.​ The walls are measured along the outer perimeter and height of the building. Minimum size The cross-section of timber for a permanent home is at least 150x150 mm. In this case, the width of the beam for the first (lower) crown should be greater than for subsequent rows.

2.​ The volume of material in cubic meters is converted into pieces based on overall size timber. The resulting amount is rounded up to the nearest whole number.

3.​ The volume occupied by window and door openings is subtracted from the total amount of material.

4.​ For partitions (partitions) and houses for seasonal residence, timber with a cross-section of 100x100 mm is quite sufficient.

Carrying out preliminary calculation of a house made of timber, start with optimal thickness walls – this is 200–250 mm. This value guarantees proper thermal insulation, and the walls will not need additional insulation.

If you choose a calibrated log for a log house, then its diameter should be at least 220–260 mm. When calculating a wooden bathhouse, the normal thickness of walls made of timber is considered to be in the range of 125–150 mm or made of logs with a diameter of 200–240 mm.

Developers who do not have sufficient experience may need help to draw up a building design and calculate the amount of materials. The easiest way to find it is on the Internet. Here you can buy a ready-made project, get help in the form of advice on forums from people who have already built a log house with their own hands. However, the scope of work on building a wooden house is not limited to the construction of walls.

Calculation of materials for floors

Ceiling and basement floors form the volume of premises (rooms). Their basis is wooden beams, which rest on the foundation and load-bearing walls. To calculate the required amount of material for floors, you should adhere to the following requirements:

1. the step width between adjacent beams should not exceed one meter;
2. the optimal cross-sectional size of the beams is 100x150 mm;
3. the outer beams must be adjacent to the walls along their entire length;
4. the number of beams, depending on the orientation of their installation, is determined as follows: the length or width of the building must be divided by the step size indicated in the project and subtract one unit.

To perform correctly calculation of a house made of timber from the point of view of the strength of the floors, the operational load of the building should be known or predicted. This way it will be possible not to lay down excess strength characteristics beams, saving a decent amount on this.

Beams in a timber house

Where calculations are required load-bearing structures, it is best to take the help of specialists. Implementation cannot be avoided without this individual project. The costs of design services are not so significant that we would not consider this option for preparing the construction of our own housing.

Floors in a house made of timber

Calculation of materials for the rafter frame

roof arrangement in a timber house

Unlike walls and ceilings, the rafter frame has a volumetric configuration. Therefore, it is much more difficult to calculate. In addition, it consists of many parts different sizes, it uses other materials besides timber. The roofing design must take into account the following factors:

1. operational and wind loads;
2. roof type and slope;
3. view roofing material And so on.

Carrying out preliminary calculation of a house made of timber At the roof design stage, we must not forget that when constructing a roof, beams of different sections are necessarily used. The step width between the rafters should not exceed 70 cm. Largest section have a ridge beam and mauerlats. The rafter frame must ensure the presence of roof overhangs, etc.

In this case, you will need the help of specialists more than ever. For example, you can buy a ready-made house project made of timber or logs to adapt it to suit your needs. The main advantage of such a solution is that it eliminates the risk of errors, which can cost much more than the fee for the service received.

It is also necessary to include the sheathing of the rafter frame in the calculation of the roof. It can be solid or lattice depending on the chosen roofing material. Since window and door blocks most often they buy ready-made, on this preliminary calculation of a house made of timber can be considered completed. All you have to do is get your rough notes in order so you can move on to purchasing the necessary materials.

In order for your project to take on its proper form, you must complete calculation of a house made of timber finalization of its results. In the language of professionals, this is called drawing up a material specification. This document allows you to control the amount of lumber in the assortment and the total amount of costs for their purchase. The specification is drawn up in the following order:

1. the volume of materials in cubic meters is summarized according to basic parameters, such as the cross-section and types of timber, width, thickness and length of the boards;
2. lumber is converted into pieces, which greatly simplifies the purchasing process and makes it easy to control their quantity and range.

We would like to note that the typical sizes of timber, logs, and boards are multiples. You must take this circumstance into account when drawing up a project. Otherwise, significant waste losses are inevitable. In other words, the dimensions of the log house should be measured in numbers of the same order as standard materials. All the information necessary for this can be found in GOST 8486-86, GOST 24454-80 and others regulatory documents woodworking

Final stage calculating a house made of timber with the preparation of material specifications for the quantity and cost of lumber will provide you with indispensable assistance in assessing your own capabilities. At this stage, you can still make changes to the project: for example, make it cheaper or, conversely, use higher quality and more expensive materials.

Basic properties of wood: useful information

Carrying out calculation of a house made of timber, the main characteristics of wood should be taken into account. This will ensure a rational choice of materials and will allow you to perform a number of other important calculations (for example, when laying the foundation of a house). Among the main properties and characteristics of lumber are:

1. residual moisture: it is not recommended to use wood with a moisture content above 23% in construction;
2. density - this parameter directly affects the strength of the material and the weight of the building;
3. resistance to moisture, rot, insects that harm spruce trees and other external factors.

Based on the combination of all its features, laminated veneer lumber is best suited for walls. It has the lowest possible residual moisture, and, thanks to its multi-layer structure, is superior in strength to analogues made from solid wood of any species. In addition, laminated lumber is usually treated with antiseptics and fire retardants.

For walls and partitions we recommend using profiled timber. It is significantly more expensive, but these costs will be fully compensated by reducing work time, finishing costs, insulation and other costs that are inevitable when using less quality materials. Now you can safely start construction.