Calculation of lumber volume. How to calculate the amount of timber per house using basic mathematics? How to calculate how much timber you need
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Construction own home associated with solving many issues and problems. One of the key questions is how much will your future home cost? This cannot be calculated without an accurate analysis of the required material. It’s one thing if you decide to order construction finished house Full construction. The company will take care of the calculations. It’s another matter if it’s decided to build housing on our own. How to calculate the foundation? How much does it cost to build walls and roofs? How to provide your home with communications? Let's consider just one of the important components of the upcoming expenses - the calculation of timber for a house. There are many calculators on the Internet for online calculations of the amount of timber. But since we decided to build a house with our own hands, we need to figure it out important issue.
Before you start calculating the timber for your house, you need to make several important decisions:
- determine the purpose of the future home,
- choose the material from which the house will be made,
- select a material supplier.
Let's look at each of the points. We did not mention the size of the house and its number of floors. To calculate materials, you must have a project with exact dimensions your object. Can be done preliminary calculations, so as not to make a mistake in choosing the size of the building that will be affordable for you.
Why is it important to know the purpose of your future home? The thickness of the walls you will lay will depend on this. For a spring-summer stay in country house a wall will do 90-100 mm thick, but for permanent residence a wall thickness of at least 150 mm will be required. Choice in favor of more thin wall will result in costs for insulation or heating of the house. Of course, you should also not forget about the dimensions of the building; the choice of beam cross-section will also depend on this.
The choice of material is simple. The calculation of walls made of edged, profiled or laminated timber has a number of features. The edged timber has the height and width that will actually be used for the wall. The profiled beam has a general size (it is according to these dimensions that you will have to pay the cubic mass to the supplier) and a working size (which is actually used to build the wall). The working size is different from total size spikes, which can range from 5 to 20 mm. It might seem like a small amount, but when calculated for the whole house it amounts to a significant amount.
The choice of supplier before making calculations is due to the fact that there is no strict standard for the production of profiled or laminated timber. The overall dimensions of the material and the size of the tenon may vary. Probably everyone is also concerned about not only calculating the volume of timber per house, but also calculating the total cost of the material. Don't rush into choosing the cheapest option. Low price usually a consequence of poor quality. But even a high price is not a guarantee of quality. It is better to choose a supplier with extensive manufacturing experience and recommendations from buyers or developers in your region.
If you do not take into account the dimensions of the house, then you need to start the calculation by choosing the dimensions of the beam, which can affect the project as a whole: a thin beam will not allow the construction of complex projects, and a more massive one will require a recalculation of the weight of the building and its load on the foundation. You may need to recalculate the quantity screw piles or tape depth.
Calculation for a house made of edged timber
Houses made from ordinary sawn timber are different simple projects, and calculating the amount of timber for such a house is a simple task.
First of all, it is necessary to calculate the number of rows of timber required to achieve the design height of the walls. To do this we use the formula:
Expert opinion
Sergey Yurievich
Ask a question to an expertNumber of rows = height of walls/height of 1 beam
The use of inter-crown seals will lead to a slight excess of the design height of the frame, but shrinkage will bring everything to the designated parameters.
Next, the total perimeter of the walls and partitions, which will also be made of timber, is calculated. Often thinner timber is used for partitions. For example, for walls a material with a cross-section of 150x150 mm is used, and for partitions - 100x150 mm. The height of the beam is always constant, so the number of rows for load-bearing walls and the partitions will be the same. In this case, we calculate the total length of the load-bearing walls and separately calculate the length of the partitions. Now it remains to calculate the volume of the timber:
Expert opinion
Sergey Yurievich
Construction of houses, extensions, terraces and verandas.
Ask a question to an expertVolume of beam = number of rows * length of walls * (height of beam * width of beam)
We separately calculate the volume for partitions and walls. Now all that remains is to sum up these volumes and multiply the result by the cost of one cubic meter. Now we know the cost and volume of a timber wall kit for our house.
Calculation of a house made of glued or profiled timber
Almost every manufacturer will offer you a free calculation of the volume of timber for your home. But what if you decide to compare two manufacturers who produce material of different dimensions, then it is better to do the calculation yourself, since the volume calculation made by the manufacturer may be subject to negotiation. When self-calculation you will already be able to operate with final numbers. Of course, they will be approximate, without deduction of window and doorways. And in the case of purchasing profiled timber by molding (without bowls and design), which is the cheapest material, there is no way to do without calculating the volume.
As is the case with edged timber, calculate the number of rows for a given wall height:
Expert opinion
Sergey Yurievich
Construction of houses, extensions, terraces and verandas.
Ask a question to an expertBuilding a house from timber always involves considerable financial expenses. But so that they do not exceed the allotted limit and you have enough materials, you need to calculate the construction of a house made of timber.
Our portal "Remontik" offers step by step steps calculating timber for building a house:
| Consumption of timber per house. | |
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Formula for calculating material consumption for load-bearing walls of a building. |
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Material consumption for the roof frame of a house. |
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Factors that influence the amount of materials needed for a roof frame. |
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Calculation of the amount of material for sheathing and rafters. |
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Number of blanks for constructing beams. |
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Calculation of the number of floorboards. |
Regardless of whether you are planning to build housing on your own or you decide to hire workers for this, you need to draw up an estimate. It will be the basis of all work.
A timber house contains the following structural elements:
- walls;
- roof;
- floor and ceiling logs;
- sheathing;
- rafters;
- fasteners and insulation;
- windows and doors;
- harness.
Consumption of timber for building a house
To build a house for permanent residence, timber of 150x150 mm, 150x100 mm, 200x200mm or 100x100 mm is used. Before starting work, it is worth choosing the size of the workpieces and calculating how much timber may be needed. Usually calculations are made in cubic meters, and not in pieces.
Calculation form for beams for load-bearing walls
Calculation of timber for building a house can be done using the following formula:
- to begin with, the sum of the length of all the walls of the building is calculated, not just external, but also internal;
- the perimeter must be multiplied by the height of the house, excluding the pediment (the facade of the building, which is limited by the cornice and roof slopes);
- the value you get should be multiplied by the thickness of the timber for construction.
As a result, you will receive the number of cubes that you will need to build a house. As a rule, they are limited to one or two floors.
As a result, to build a house you will need 13.5 m 3 of timber with a cross-section of 150x150 mm. If you plan to use more walls, then it is important to take them into account in the calculations.
For the convenience of calculating the construction of a house made of timber and facilitating the choice, you can use the data given in the table (with a length of 6 meters):
| Beam section | Pieces per cube | Volume of one piece |
| 200x200 mm | 4,1 | 0.24 m 3 |
| 150x150 mm | 7,4 | 0.135 m 3 |
| 100x150 mm | 11,1 | 0.09 m 3 |
| 100x100 mm | 16,6 | 0.06 m 3 |
To make the correct calculation for building a house made of timber, you need to take into account what you cannot avoid when individual construction– even a trusted supplier will have several defective units in one batch. This must be taken into account when purchasing and order blanks with a small margin.
Material consumption for the roof frame
For timber house a rafter system is used that protrudes load-bearing frame roofs. The tree is durable material, but despite this, it should not be overloaded, otherwise it can cause the destruction of load-bearing walls and uneven shrinkage.
The rafter system belongs to the category pitched roofs. Cheaper and easier to build gable roof with your own hands. The technology is accessible to a beginner, and it requires much less material.
Factors Affecting the Amount of Material Required for a Roof Frame
If you want your roof to be not just beautiful, but also reliable, do not skimp on building materials. It is important not to deviate from the technology when building it yourself.
Frame wooden roof contains the following required elements:- rafters or rafter legs;
- pediment, consisting of timber, similar to load-bearing walls;
- beams (logs) - horizontally located beams that provide the basis for laying the floorboard;
- Mauerlat – thick layer located along the perimeter of the walls, is used to distribute the weight of the frame equally;
- sheathing - attached to the rafters and serves as the basis for installing the roof.
How to calculate the cost of building a quality house made of timber
According to SNiP 31-02, any roof has a number of requirements, taking into account which you need to calculate Construction Materials. That is, so that the frame fully complies with the stated standards and protects the house from snow, rain and melt water, does not allow cold air, you need to find out exactly how many blanks are needed.
Calculation of the amount of timber for the frame: MauerlatThe amount of material directly depends on the coverage area. For example, we can consider a 6x6 house. For quality basis you will need a thick, strong beam 150x150 mm or 150x100 mm. It is laid on four load-bearing walls; therefore, to make a mauerlat, four beams are needed, each 6 meters long.
Attention! If the house does not require internal load-bearing walls, then it is important that the distance between them does not exceed 8 meters. If there is another support inside the house, then it is worth increasing the distance to 14-16 meters.
For example: 6+6+9+9=30 meters.
The perimeter, namely 30 meters, must be divided by the length of one bar: 30 m/6 m = 5 pieces.
As a result, to build a mauerlat for a 6x9 m house you need 5 bars of 6 meters each.
Calculation of the amount of material for sheathing and rafters
The rafter system is the main support for roofing material, which protects the house from snow and wind.
Calculation of the timber that will be used for the construction of rafters is done using the following formula:
- The total load of wind and snow per 1 m 2 of the roof - it is calculated on the basis of SNiP 2.01.07-85 “Loads and impacts”. Therefore, for a slope with an angle of 45 degrees, the length of the roof is 6.5 meters and the length of the rafters is 3.5 meters, the load is 226.3 kg/m2.
- Total load – 5148 kg. Now we multiply 6.5 m by 3.5 m and get 22.75 m, which represents the surface area of the slope (5148 kg).
- Then you need to find out the length of all the rafters and how much timber you need to purchase for their construction. To do this, taking into account that 1 linear meter can support a weight of 100 kg, we divide 5148 kg into structures and get 51.48 m. This will be the minimum length of the rafters.
- The roof slope overhangs the wall by approximately 50 cm, which means you need to buy 4 meters of wood.
- It is very easy to calculate the number of pieces: 51.48/4 = 12.87, or more precisely 14, since they are arranged in pairs. That is, you will need 7 pairs.
The rafter system contains and wooden sheathing. For it, boards approximately 2.5 cm thick are used. They need to be positioned horizontally, namely parallel to the ridge.
In this case, the width of the board should not be more than 15 cm. There are two laying methods, which determine the number of purchased timber.
The first is continuous styling, when the distance is no more than 1-2 cm and is sparse. In this case, the flight can reach 10 or more centimeters. The more often the boards lie, the warmer and stronger design, but at the same time its cost increases.
Calculating the quantity is very simple. The length of the board and skate is measured. Then the installation of the skate must be divided by the footage of the board. This way you can find out how many boards are needed for the support strip.
If the width is 15 centimeters and the gap is 5, then the number obtained after addition must be divided by the length of the slope. As a result, you will receive the number of blanks.
Calculating the cost of building a log house is a painstaking task. Therefore, it is important to take into account that everything must be purchased in reserve. Roofing consumption is calculated taking into account the roof surface area. In this case, natural openings are not taken into account - space for the attic door and chimney door, if there is one in the project.
Beam floors are especially in demand in low-rise construction. They are characterized by a relatively low price, they are quick and easy to make, wood is a durable material and has light weight. It does not place significant loads on the foundation structure.
Only wood is used for beam ceilings coniferous species. In most cases, this is larch, since it is the most reliable and durable material, able to withstand heavy weight:
- good resistance to temperature changes;
- stable tightness;
- practically does not shrink.
Worth giving preference the best preparations, which were dried in steam chambers and have a humidity of no more than 14%. In this case, the aspect ratio should be 150x200 mm or 150x100 mm.
For proper design In order to perform a competent calculation of materials for timber construction, you need to take into account the width of the span. The larger it is, the more often the beams are laid, and their number also increases. To cover an attic, it is not at all necessary to lay the pieces very close to each other.
We suggest that you familiarize yourself with the table, which allows you to determine how many pieces you will need:
| Span width in meters | Distance between beams in meters | Optimal workpiece cross-section in mm |
| 3 | 1 | 150x100 |
| 4 | 0,5 | 150x100 |
| 4 | 1 | 150x150 |
| 5 | 0,5 | 150x200 |
| 6 | 0,5 | 150x200 |
| 7 | 0,5 | 150x250 |
This means that for a span of 4 m you need to buy 6 blanks for laying floor beams, starting from a step of 1 m. That is, 4 pieces will be used to cover the span and 2 more will go to the edges near the walls. The cost directly depends on the length of the beam.
Calculation of the number of floorboards
Before calculating how much floorboard you will need, you should decide on its dimensions:
- The optimal length is 4, 4.5 and 6 meters;
- thickness is presented in the following sizes: 32 mm, 25 mm and 30 mm;
- standard width – 105 mm or 100 mm.
If you plan to make a floor from whole boards, then it is worth reducing the amount of waste.
The calculation of material for constructing a house from timber is carried out based on the width and length of the area to be covered and on how the board will be laid - across or lengthwise.The calculations are quite simple. If you know the parameters of the blanks, then you will determine usable area, it is 5-7 mm less than the actual one as a result of the tongue.
Manufacturers usually make boards 6 meters long. It is also necessary to take into account the amount of waste that you cannot avoid.
Calculations are performed as follows:
- Share known area premises by the size of the board area, taking into account only the useful one - this is the amount required for installation.
- When the room has parameters other than 6 meters, it is important to take into account the amount of intact material. To do this, the width of the room is divided by the working width of the floor board.
Based on the information received, you can easily find out how much it will cost you to build a house made of timber. At the same time, it is necessary to take into account such Consumables, as roofing material, insulation and additional fasteners. Their number directly depends on the area, house design and other factors.
Conclusion
Building a house made of timber will be much easier than a brick one, and is accessible to every novice owner. After completing the construction calculation, you will receive an approximate amount of the project, which you should focus on when planning your budget.
Construction of a house must begin with calculations. And one of the most difficult is calculating the quantity necessary materials. A separate line can be used to calculate the amount of timber. You can do this manually, or you can use a home timber calculator, but even then it is advisable to know and understand the calculation methodology.
Calculation of the quantity and volume of timber:
beam width:
beam height:
total length of walls (including all internal partitions):
wall height:
area of openings (windows, doors):
beam length:
price for 1m 3:
number of gables:
wall length:
pediment height:
opening area:
Which timber can be used for which buildings?
For the construction of houses, two types of timber are used:
They differ from each other in production technology, some technical characteristics and, of course, the price. Historically, for the construction of summer cottages and bathhouses, timber measuring 100x100 mm was used. For construction capital house For medium-sized timber, it is quite possible to use timber with a cross-section of 150X150 mm. Solid structures such as cottages or houses of impressive size use a product with a cross-section of 200X200 mm. As a rule, the length of the timber, regardless of its production technology, is 6 meters. But if desired, you can order a beam with a different length. The technologies used at enterprises producing timber make it possible to produce timber with two flat and two convex surfaces, one of them extends outside the building, the other inside. Thus, it seems that the house is assembled from rounded logs.
Calculation algorithm
Important: when calculating timber, it makes sense to proceed from standard sizes Thus, the amount of waste can be optimized.
The entire calculation can be divided into several parts. That is, you need to find out the amount of timber for the log house, the structure of the roof, floors, etc.
Basic formula
Important: as a unit of measurement, lumber required for construction is carried out in cubic meters x (cub. m).
For example, consider the algorithm for calculating a house made of timber with a cross-section of 150X150 mm. A beam of this cross-section is quite suitable for the construction of a building for areas located in middle lane our country. To perform the calculations you will need the following dimensions:
1. Dimensions of the building - length x width x height (LxSxH);
2. Number and dimensions of internal partitions - S1;
3. Dimensions and number of rafters;
4. Dimensions and number of beams used for the floor and ceiling.
As a calculation object, we will take a one-story house, with overall dimensions 9x6x3 m and one internal partition of 6 m. Based on these data, the total cubic capacity of the timber can be calculated. To do this you need:
calculate the perimeter: (L*S)*2+S1=(9*6)*2+6=36 m. total area house is calculated by the formula - 36 * 3 = 108 m. Where 36 is the area, 3 is the height. By multiplying the result obtained by the length of the side of the beam, you can find out the total quantity, that is, 108 * 0.15 = 16.2 cubic meters.
Important: a certain amount of material will be saved due to the fact that window and door openings will be cut out during construction. But practice shows that it is necessary to add 10 - 15% to the calculated size of the timber. Since there is always a possibility that the purchased material will contain substandard wood.
Calculation of the amount of lumber for the floor and ceiling
The amount of material required for beams, rafters, etc. directly depends on the type of building and roof structure. Beams with a section size of 100X150 mm are quite suitable for use in floor and ceiling construction. Taking the dimensions of the future house as a basis, you can calculate the number of beams. To do this, you need to find out how much timber is needed for arranging the floor and ceiling. With an installation step of 1 meter, 8 beams 6 m long will be used as joists, in addition, 8 beams of the same length will be used to construct the ceiling. That is, only 16 beams or 96 linear meters. To calculate the quantity required lumber it is necessary to multiply the resulting length by the cross-sectional area, i.e. 96*0.015=1.44 cubic meters. Taking into account the above about the likelihood of substandard wood entering the one that will be purchased, you can safely purchase 1.5 cubic meters.
How much lumber is needed for the roof?
In the type of house for which the calculation is carried out, as a rule, they install gable roof. The main task when designing this type of roof is to choose the correct slope. In fact, with a small slope of slopes, in winter time Ice will accumulate on the roof, and if too sharp corner, such a roof can be blown away by a sharp gust of wind. Therefore, many homeowners make the Solomon decision and choose a roof with a ridge angle of 45 degrees. Traditionally, the installation pitch of the rafters is 0.6 meters. The rafters themselves are made of 100x150 m timber.
Important! Installation of rafters with a smaller pitch allows the use of timber with a smaller cross-section.
In accordance with the Pythagorean theorem, the length of the leg of the rafter beam is determined. In a triangle where the width of the house is taken as the hypotenuse, and the rafters are the legs, it turns out that the length of the leg is 4.2 m. Dividing the length of the house by the length of the step, we get the number of beams - 14 m. Taking into account the section, we can calculate that for the construction of the roof you will need 1.76 cubic meters. timber.
After this, the calculation of the amount of timber can be considered complete. It is important not to forget about increasing the volume of purchased timber by 10 - 15%. You can check your calculations using our online calculator.
In addition, many companies that are engaged in the construction of country housing will help you calculate the amount of timber for free.
Houses made of timber versus wood log houses have a number of advantages. Due to the fact that the beam has geometric correct form(in cross-section it is either a square or a rectangle) much more appears in the house usable space, it is much easier to calculate the amount of timber needed to assemble the walls.
To do this, you need to add up the lengths of all the walls, multiply them by their height and the thickness of the beam, consider an example of the formula:
V timber = wall length X wall height X timber thickness
Let's get the number of cubes of timber needed to build a house.
Correct calculation of timber for a house
Calculate required amount timber for a house, a 6x9 house, with a fifth wall, 3 meters high, made of 150x150 timber, for this we add up the perimeter of the walls, not forgetting about the fifth six-meter wall 6+6+6+9+9=36 linear meters, then multiply by the height of the floor ( 3 meters), 36 linear. m. x 3 meters = 108 sq. meters, in order to get cubic meters, we multiply the resulting area by the thickness of the timber 108 sq.m. x 0.15 = 16.2 cu. meters.
That’s basically all, now you should understand how to make the correct calculation of the required timber for a house; even a schoolboy can figure it out using the scheme described above.
Now let's talk about how timber houses are assembled
On an already prepared foundation we lay any waterproofing material, for example roofing felt or roofing felt. Mortgage boards treated with (required!) antiseptic are placed on top. These boards serve as a protective buffer between the foundation and the first row of beams. If during operation the foundation of the house rots, it will be the embedded boards (they can be replaced), and not the first layer of beams.
Laying the first crown
The next step is laying the first crown of the building. The main thing here is to carefully observe the dimensions of the building along the axes, the horizontal level and measure the angles planned by the project. Here you also need to decide in advance which corner joint for the timber will be used when laying it.
The photo shows the laying of the first crown on the foundation Corners are checked using twine stretched diagonally from corner to corner and its length is measured. Then they are also stretched diagonally between the second pair of corners. If the distance matches, the next crown is laid. If there is a discrepancy, the distance is corrected. In professional construction organizations For these purposes, they do not use improvised means, but special high-precision engineering tools.
Before assembling the first layer of timber, one of the following types pairing wall corners:
- half-wood assembly;
- assembly into a dressing with a root spike;
- assembly on dowels.
Laying subsequent crowns
The second and subsequent layers of timber are connected to each other wooden dowels(dowels), which represent wooden rod, thanks to which the crowns are attached in height. This fixation prevents displacement and bending of the building material during drying.
Methods for connecting and joining beams The hole for the dowel is drilled several millimeters in diameter larger than the dowel itself, so that during subsequent shrinkage the timber can freely “walk” along the dowel, thereby preventing the formation of cracks.
Wood has always been the most popular material for the construction of houses and baths. Nowadays, the demand for wood remains high. In order not to spend extra money, you need to correctly calculate how much timber it is worth purchasing.
What are the difficulties in calculating the volume of timber?
At the time of preparation, before the start of construction, it is not easy to calculate the required amount of timber. The volume is calculated in cubic meters, it is at this point that difficulties begin. It is difficult for the buyer to understand the correct calculation of cubic capacity. It is required to calculate so that during the construction work I didn’t have to buy additional timber. After all, it will be a shame if, in the midst of construction work, there are not enough boards. Again you will have to run around the market or companies in search of the missing part, and spend your money on delivery. Or, after construction is completed, you will have to think about where to place the remaining material.
timber
If you look at it, there is nothing complicated about it. Let's take the following values as an example.
When calculating, it turned out that 30 boards were required, 6 meters long, 50 millimeters thick, and 200 millimeters wide. All data needs to be multiplied. To do this, all units must be converted into one measurement unit - meter. It turns out that the width of the board is 0.20 meters, the thickness of the board is 0.05 meters. We multiply: width x length x thickness x quantity = 0.20 x 6 x 0.05 x 30 = 1.8 cubic meters.
If the buyer knows how many cubes of lumber are required, he can find out how many boards are contained in a cubic meter. Let's calculate how many pieces are in one cubic meter if the lumber is 200 millimeters wide, 50 millimeters thick, and 6 meters long. All quantities must be divided. Volume/width/thickness/length=1/0.20/0.05/6=16.666.
To quickly calculate, you can use the table. Before calculating the cubic capacity of the timber, you need to find out what parameters it will have.
Beam width (mm) | Beam thickness (mm) | Beam length (m) | Number of cubic meters in one beam | Quantity of timber in one cubic meter (pcs) |
From the table it is clear that in a cubic meter the number of units of timber depends on the dimensions of length, thickness, width. Therefore, in one cubic meter, changing the dimensions, we get a different amount of timber.
Subtleties in calculation
In order to use your funds economically and rationally, you need to calculate the number of cubic meters as accurately as possible. But when purchasing, do not take much in reserve, about five to ten percent more, because the timber may turn out to be defective, during operation it may be twisted, and other unforeseen situations may also occur.
Whatever the volume of work, you always need to take different ones. For the construction of walls, only one is suitable, on rafter system completely different ones are used. Therefore, you need to carefully plan the design of your house or bathhouse. Using tables or a formula, you should calculate the quantity and required dimensions.
How to independently calculate the cubic capacity of timber for a house
For example, consider the option of a small country house one-story house for summer stay. It was decided to build a house six by six meters with a ceiling height of three meters and make one six-meter partition. Let's calculate the cubic capacity of timber for a house with these parameters. If the house will be used only during the summer season, it is worth purchasing timber with a cross-section of 100 x 100 millimeters. When planning year-round residence it is necessary to make walls from thicker material, the width of which will be at least 150 millimeters.
Calculation required volume timber for the house:
- perimeter: (length + width) x 2 + partition = (6 + 6) x 2 + 6 = 30 meters;
- volume of the walls of the house: (perimeter x timber thickness x wall height) = 30 x 0.1 x 3 = 9 cubic meters for summer house. Or 30 x 0.15 x 3 = 13.5 cubic meters for a house with winter living;
- gables: (width x timber thickness x height) = 6 x 0.1 x 3 = 1.8 cubes required for a summer house. And 6 x 3 x 0.15 = 2.7 cubic meters for living in a house all year round.
- Add up the resulting results and add to them 20% of the total volume, for reserve. (9 + 1.8) + 20% = 10.8 + 2.16 = 12.92 cubic meters and (13.5 + 2.7) + 20% = 16.2 + 3.24 = 19.44 meters cubic.
How to calculate the cubic capacity of timber for a bathhouse
Recently, the fashion for holidays outside the city has returned. Young families with children are increasingly purchasing garden plots. Many people wonder how to build it with their own hands and how to calculate the amount of lumber for a bathhouse. If you understand all the subtleties and moments, then there is nothing complicated.
The most popular 4 x 6 meters. It is better to make it from natural timber. When starting construction, you need to decide on the exact amount of lumber. For external walls use 250 x 130 mm, on internal partitions 130 x 95 mm. Let's calculate:
- The perimeter of a bath of this size is 5500 x 3500 millimeters.
- Each wall requires 21 timber. This is calculated taking into account the size of the floor and the thickness of the ceiling.
- The log house has four walls. It turns out (6 x 2) + (4 x 2) = 20 meters. Converting to millimeters, it turns out to be 20,000.
- We need to find the total length of the beams. For this, the number of beams x length = 21 x 20000 = 420 meters. Converting to millimeters, it turns out 420000.
- Multiplying the resulting amount by the size of the timber, we get 420 x 250 x 130 = 13.65 cubic meters.
To calculate the required amount of timber for the partitions, use the same description with the only difference being that a different size of timber is required, measuring 95 x 130 millimeters. The cubic capacity for partitions is also calculated. For interior walls a beam of smaller thickness is used.
For large volumes
How to calculate the cubic capacity of timber for big house? In this case, lumber of different lengths, widths, and thicknesses will be required. It will be easier to calculate not the volume of wood (dense), but to use the calculation of the “folded cubic meter”. In the first case, the results are used when measuring each beam separately, without voids. In the second case, all the lumber is stacked, joining the beams together different sizes so that they are the same length. When everything is sorted and evenly stacked, measure the dimensions (width, length, height). The results obtained are multiplied. Now - how to find out the cubic capacity of a dense beam. To do this, the resulting result of the folded cubic capacity should be multiplied by a special coefficient.
Calculation of crowns
In order to find out the required number of crowns in a log house, you need to divide the height of the house by the height of the beam (working). Let's calculate the cubic capacity of the timber for a house measuring 9 x 9 meters with one cut. For example, we use a beam profiled 140 x 190 millimeters; we need to calculate the number of crowns at a height of 2.5 meters.
Calculation: 2500/130 = 19.23. Rounding up, it turns out that 19 crowns are needed for this height. The length of one crown is 9 meters; you need to calculate how many linear meters there are in one crown, including overcuts. Let's calculate how many linear meters in lower crown. To do this, you need to add up all sides 9 + 9 + 9 + 9 + 9 = 45 meters. To calculate the total number of linear meters in a given house, you need to multiply the length of one crown by the number of crowns. It turns out, 19 x 45 = 855 linear meters. Considering the zero crown, you need to add it to the total quantity so that there is a row offset. 2.5 x 9 = 22.5 linear meters of crown halves. 855 + 22.5 = 877.5 m.p., this includes door and window openings.
How to correctly calculate the cubic capacity of profiled timber? To do this, multiply the resulting length of the crowns by the height of the beam and multiply by the thickness of the profiled beam = 877.5 x 140 x 190 = 23.34 cubic meters will be required for a house measuring 9 x 9 meters. When calculating timber loss, it is imperative to take into account approximately 7% of total number, for trimming and sawing.
Advantages of a wooden house built using timber
- No need for internal and exterior decoration Houses. The walls are even and smooth. They look beautiful.
- Moisture does not penetrate the seams located between the crowns. Moisture does not collect on the walls and rot does not appear.
- After a while, after the log house has shrinked, there is no need to caulk.
- The timber has a tight connection with a lock, which protects against blowing.
- Almost no cracks appear and are not deformed during shrinkage.
- Natural material, environmentally friendly.
- Does not require long assembly, assembles quickly, like a construction set.
- The houses have a beautiful aesthetic appearance.
- The house is easy to care for; there is practically no dust collecting on the walls.
- Possibility to paint the house any color.