Construction calculator for calculating flooring. Beam calculator - calculation for different types of structures
To perform an accurate calculation of floor boards, a calculator created as online service, has been around for many years. With its help, you can calculate the amount of material that will be needed for the construction of logs and flooring.
The calculator is used to determine the volume of not only the floorboard, but also the material for the subfloor. As with the construction of other structures, work on creating high-quality floors requires determining the exact amount of fasteners and insulation, end and other parts.
Features of the online calculator
You need to enter several parameters of the living space into the calculator Floor calculations using an online calculator are based on dimensions indicated in millimeters. To perform all operations you will need to clarify:
- floor length and width;
- length and thickness of the logs;
- width and thickness of boards;
- house parameters (width).
For each quantity there are certain designations, among which there are numbers and letters that reflect:
- thickness and width rough boards subfloor;
- the number of jumpers between the lags and the step between them;
- distance between boards.
You can find out exactly how many boards you need for the floor by using one of the offered floor calculator programs. You will need competent, high-quality drawings, in accordance with which the flooring is constructed and the ceiling is arranged.
When starting to select a material, it is necessary to take into account the characteristics of their parameters. The most popular are boards whose thickness reaches 4 cm.
Despite the fact that many designers recommend using products whose this parameter is much higher, boards no thicker than 2 cm are often sufficient.
They are more flexible and durable, and thanks to the high-quality and competent processing of the boards, they are characterized by increased resistance to moisture and temperature changes.
Correctly carried out calculations will allow you to lay a strong screed It is these qualities that allow properly prepared materials to retain their original shape and avoid cracking, swelling and other damage and deformation.
When do you need a calculator? 
The program will even help you determine optimal distance between the joists
Other data may also be required; specifying them will help the calculator determine the exact area of the room and select the most suitable parameters among the many existing proposals. wood materials, the program is able to correctly set the optimal distance between the lags and the components of the structure.
Using the program, the consumer receives specific data about required quantity not only lumber, but also the insulation required for arranging and creating insulation under wooden flooring. Read more about construction calculators watch in this video:
Another feature of the program is the ability to indicate some options for the layout of the future floor, allowing you to save money and use it when carrying out construction work minimal amount wood and insulation.
To work with online calculator, there is no need to contact specialists and designers. It is enough to use the Internet services, indicating the requested data.
Beams in a house usually belong to rafter system or overlap, and to get reliable design, the operation of which can be carried out without any fear, it is necessary to use a beam calculator.
What is the beam calculator based on?When the walls have already been brought under the second floor or under the roof, it is necessary to make, in the second case smoothly turning into rafter legs. In this case, the materials must be selected so that the load on the brick or log walls did not exceed the permissible limit, and the strength of the structure was at the proper level. Therefore, if you are going to use wood, you need to choose the right beams from it, make calculations to find out required thickness and of sufficient length.
Subsidence or partial destruction of the ceiling may be caused by different reasons, for example, too large a pitch between the joists, deflection of the cross members, too small cross-sectional area or defects in the structure. To eliminate possible excesses, you should find out the expected load on the floor, be it basement or interfloor, and then use a beam calculator, taking into account their own weight. The latter can change in concrete lintels, the weight of which depends on the density of the reinforcement; for wood and metal, with a certain geometry, the weight is constant. The exception is damp wood, which is not used in construction work without first drying it.
On beam systems in floors and rafter structures load is exerted by forces acting on section bending, torsion, and deflection along the length. For rafters, it is also necessary to provide for snow and wind loads, which also create certain forces applied to the beams. It is also necessary to accurately determine the required pitch between the jumpers, since it is too a large number of crossbars will lead to excess weight of the floor (or roof), and too little, as mentioned above, will weaken the structure.
You may also be interested in the article about calculating the amount of unedged and edged boards cubed:
How to calculate the load on a floor beamThe distance between the walls is called a span, and there are two of them in the room, and one span will necessarily be smaller than the other if the shape of the room is not square. Interfloor lintels or attic floor should be laid along a shorter span, the optimal length of which is from 3 to 4 meters. Longer distances may require beams non-standard sizes, which will lead to some instability of the flooring. The best solution in this case would be to use metal crossbars.
Regarding the section wooden beam, there is a certain standard that requires that the sides of the beam be in a ratio of 7:5, that is, the height is divided into 7 parts, and 5 of them must make up the width of the profile. In this case, deformation of the section is excluded, but if you deviate from the above indicators, then if the width exceeds the height, you will get a deflection, or, if the opposite discrepancy occurs, a bend to the side. To prevent this from happening due to the excessive length of the beam, you need to know how to calculate the load on the beam. In particular, permissible deflection calculated from the ratio to the length of the jumper as 1:200, that is, it should be 2 centimeters by 4 meters.
To prevent the beam from sagging under the weight of logs and flooring, as well as interior items, you can grind it from below a few centimeters, giving it the shape of an arch; in this case, its height should have an appropriate margin.
Now let's turn to the formulas. The same deflection mentioned earlier is calculated as follows: f nor = L/200, where L is the span length, and 200 is the permissible distance in centimeters for each unit of beam subsidence. For reinforced concrete beam, distributed load q which is usually equated to 400 kg/m 2, the calculation of the limiting bending moment is performed using the formula M max = (q · L 2)/8. In this case, the amount of reinforcement and its weight is determined according to the following table:
Cross-sectional areas and mass of reinforcing bars
Diameter, mm | Cross-sectional area, cm 2, with the number of rods | Weight 1 linear meter, kg | Diameter, mm |
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Wire and rod reinforcement |
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Seven-wire ropes class K-7 |
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The load on any beam made of a sufficiently homogeneous material is calculated using a number of formulas. To begin with, the moment of resistance W ≥ M/R is calculated. Here M is the maximum bending moment of the applied load, and R– calculated resistance, which is taken from reference books depending on the material used. Since most often beams have rectangular shape, the moment of resistance can be calculated differently: W z = b h 2 /6, where b is the width of the beam, and h– height.
What else should you know about beam loads?The ceiling, as a rule, is at the same time the floor of the next floor and the ceiling of the previous one. This means that it needs to be made in such a way that there is no risk of combining the upper and lower rooms by simply overloading the furniture. This probability especially arises when the step between the beams is too large and logs are abandoned (plank floors are laid directly on the timber laid in the spans). In this case, the distance between the crossbars directly depends on the thickness of the boards, for example, if it is 28 millimeters, then the length of the board should not be more than 50 centimeters. If there are lags, the minimum gap between the beams can reach 1 meter.
It is also necessary to take into account the mass used for the floor. For example, if mats are laid from mineral wool, That square meter the basement floor will weigh from 90 to 120 kilograms, depending on the thickness of the thermal insulation. Sawdust concrete will double the mass of the same area. The use of expanded clay will make the flooring even heavier, since the load per square meter will be 3 times greater than when laying mineral wool. Next, we should not forget about the payload, which for interfloor ceilings is 150 kilograms per square meter minimum. In the attic it is enough to take permissible load 75 kilograms per square.
Wooden flooring is the simplest in terms of installation and inexpensive way to separate adjacent rooms of the house by height. The main elements of a wooden floor are beams (beams or boards) with boards sewn end-to-end on them.
If you decide to use this type floors in your home or compare its cost with another type, for example, with reinforced concrete, then the calculator below will help you with this. With its help, you can calculate the number of boards for the floor, as well as find out their cost.
The calculator calculates the number of boards for two types of floors:
- Type 1 - simple rectangular ceiling with or without opening;
- Type 2 - overlap of any shape.
The calculator has 3 fields: drawing, input data and result.
DrawingThis field displays a picture corresponding to the selected type of structure.
Initial dataBefore calculating, you must fill in the fields in this field.
First you need to choose how many sides of the skin you want to immediately take into account in the calculation. Because wooden floors They may have only one covering of boards that serve as the floor for the upper floor, or they may have two. And the lower cladding in this case is the ceiling for the lower floor. This is usually done for aesthetic reasons or if they want to place insulation between these two skins.
Type 1The length (L) and width (K) of the room are the dimensions of the room or the dimensions of the ceiling. Indicated from the inner edges of the walls (see figure).
The area of the openings (S) is the sum of all openings that fall within the area of the calculated overlap.
The length (A), width (B) and height (F) of the board are the dimensions of the board, where A and B determine the covering area, and F is the thickness of the floor.
Price for 1 m3 or 1 m2 - depending on how this lumber is sold, in that column you indicate the amount. For example, 1 m3 of boards costs 5,000 rubles, then you indicate this figure opposite the column “Price per 1 m3”.
Type 2The fundamental difference between type 1 and type 2 is that the area of the room is immediately indicated here, and not the lengths of the sides, as in the previous case.
In addition, in the calculation of type 2 floors, the “Stock” column appears, with which you can adjust the number of boards. Its appearance is due to the fact that when covering polygonal (complex) floors, a lot of scraps appear that are unsuitable for further use. Here it is advisable to indicate 5-10%.
ResultFloor area - the area of the room minus the openings.
The total number of boards is the required integer number of boards required for the flooring arrangement (cladding on one or both sides).
Boards in 1 m3 - the number of boards of a given section (BxF) in one cube. The length of the board (A) does not play any role in this case.
The volume and area of the boards is the required number of boards, expressed in cubic and square meters.
Cost per 1 m3 or 1 m2 - depending on what you indicated the price in, here you get the total cost of the boards.
Before purchasing floorboards, you need to calculate how many cubes of lumber are needed to construct a certain structure. Wherein exact calculation can be done using a regular calculator, knowing the area of the room and the thickness of the board. Such skills will be useful to you not only in order to calculate the volume of lumber for flooring, but also if you decide to build a house, because wood products are used to construct various structures.
Since the price of all lumber when sold is charged per cubic meter, it is important to be able to calculate the need for this particular unit of measurement. This way, not only the number of boards is calculated, but also other lumber, for example, timber, slats, etc. The thing is that products with the same cross-section may differ in length. Therefore, after determining the volume, you can understand how many floorboards there will be in one cube.
Important to know: when buying a board from valuable breed Wood products are sold individually. The thing is that the price of such coatings is too high, and when calculating in cubes there is a small error.
When calculating, it is better to use a regular calculator. This way you can get a more accurate result and take into account all the nuances of the future design of the house. Although, if you need to find out how many cubes of boards, for example, 50 mm thick, will be needed to construct a floor, you can also use an online calculator. He can perform such a simple calculation correctly. However, it is always a good idea to be able to count the amount of lumber by hand.
When building a house or laying a floor, the calculations are carried out in the same order:
Advice: when ordering a carrier, it is better to indicate an inflated weight (10-15% more). This way you won’t have problems with the load, because the wood moisture content stated by the manufacturer may be a little more or less.
However, such a simple calculation is applicable for edged elements, because they are processed on all sides and when they are stacked, there are practically no gaps left. To calculate how many cubes unedged boards necessary to install a floor, you will have to use a correction factor, because due to the untreated sides of the product, there will be too many gaps when stacked.
Calculation exampleLet’s assume that in your house you want to cover a room with dimensions of 5x6 m with a 50 mm thick floorboard. We calculate the volume of lumber and the number of products in the following sequence:
- Find the area of the room: 6x5=30 m².
- Since we decided to use a board with a thickness of 50 mm or 0.05 m, the lag step can be 1 meter.
- Knowing the thickness of the element and the area of the room, we obtain the volume of lumber: 30 m² x 0.05 m = 1.5 m³.
- Now using a calculator, you can calculate how many floorboards you will need. To do this, knowing the dimensions of the floorboard, we calculate its volume: 2m x 0.05 m x 0.13 m = 0.013 m³. Now we divide the total volume of lumber by the resulting number for an element with a thickness of 50 mm: 1.5: 0.013 = 115 boards.
Thus, using a regular calculator, you can calculate the need for other lumber for building a house: paneling, timber, slats.
To accurately calculate floor planks, a calculator created as an online service has been around for many years. With its help, you can calculate the amount of material that will be needed for the construction of logs and flooring.
The calculator is used to determine the volume of not only the floorboard, but also the material for the subfloor. As with the construction of other structures, work on creating high-quality floors requires determining the exact amount of fasteners and insulation, end and other parts.
Features of the online calculator
You need to enter several parameters of the living space into the calculator
Floor calculations using an online calculator are based on dimensions indicated in millimeters. To perform all operations you will need to clarify:
- floor length and width;
- length and thickness of the logs;
- width and thickness of boards;
- house parameters (width).
For each quantity there are certain designations, among which there are numbers and letters that reflect:
- thickness and width of rough subfloor boards;
- the number of jumpers between the lags and the step between them;
- distance between boards.
You can find out exactly how many boards you need for the floor by using one of the offered floor calculator programs. You will need competent, high-quality drawings, in accordance with which the flooring is constructed and the ceiling is arranged.
When starting to select a material, it is necessary to take into account the characteristics of their parameters. The most popular are boards whose thickness reaches 4 cm.
Despite the fact that many designers recommend using products whose this parameter is much higher, boards no thicker than 2 cm are often sufficient.
They are more flexible and durable, and thanks to the high-quality and competent processing of the boards, they are characterized by increased resistance to moisture and temperature changes.
Correctly carried out calculations will allow you to lay a strong screed
It is these qualities that allow properly prepared materials to retain their original shape and avoid cracking, swelling and other damage and deformation.
When do you need a calculator?
The program will even help you determine the optimal distance between the lags
Other data may also be required; specifying them will help the calculator determine the exact area of the room, select the most suitable parameters of wood materials among the many existing proposals, the program is able to correctly set the optimal distance between the logs and the components of the structure.
Using the program, the consumer receives specific data on the required amount of not only lumber, but also insulation required for arranging and creating insulation under a wooden floor. For more information about construction calculators, watch this video:
Another feature of the program is the ability to specify some options for the layout of the future floor, allowing you to save money and use a minimum amount of wood and insulation during construction work.
To work with an online calculator, there is no need to contact specialists and designers. It is enough to use the Internet services, indicating the requested data.