Before starting construction of a building, it is necessary to draw up its design estimate. This document indicates how much materials are needed for the work, as well as their cost. If the question arises of how to calculate the cubature of the board, after reading this article, you can get an answer to it.
Lumber: varieties and calculation features
The quality and technical parameters of the product are affected by the type of wood and the method of production of the specified building material. There are two types of boards:
- Edged - premium lumber that has the correct shape.
- Unedged - wooden products, the side edges of which are not processed, therefore they contain bark. Builders use such boards for the construction of rough flooring and ceilings. Their main advantage is their low cost compared to edged timber.
Before you calculate the cubature of the board, you should decide what type of product will be used to build individual parts of the building (for example, floors). It is easier to find out the volume of edged boards due to their correct shape. If it is necessary to calculate the cubic capacity of finishing parts (lining or timber), then in this case only the dimensions of the main part of the parts should be taken into account, that is, the dimensions of special ribs and grooves will not be taken into account.
To determine the number of boards in a cube, craftsmen use a special formula, and unedged lumber will have to be calculated a little differently, since such wooden products do not have clear edges.
Formula for calculating edged boards
To determine the cubic capacity of a product, you need to know the dimensions of the following indicators:
- length;
- width;
- heights.
If the dimensions are known, then they should be multiplied with each other using a special formula that looks like this:
V=L x b x h where:
- L is the length of one board in meters;
- b - product width;
- h - edged board height.
Using this formula, you can easily find out the volume of one part. However, before calculating the cubature of the edged board, millimeters should be converted to meters, if necessary. If the dimensions of the part are 3000 x 150 x 22, then each of the indicators should initially be multiplied by 0.001, and then the formula should be derived, which in this case will look like this:
V=3 x 0, 15 x 0, 022
As a result, it turns out that one board has a volume equal to 0.0099 m3 (cubic meters). After that, you need to find out how many unitsproducts are stored in one cubic meter. To do this, builders use a mathematical formula, with the help of which 1 m3should be divided by the resulting volume of one wooden product. The calculation will look like this:
1 / 0, 0099=101, 01 m³
If the question arises, how to calculate the cubature of the edged board, then in the end it turns out that 1 m3 contains 101 units (the value should be rounded off) of a wooden product, the dimensions of which were indicated previously. Next, you simply need to determine the number of lumber required for the construction of the building. Experienced builders recommend purchasing parts with some margin, because during the construction of the facility, some products may deteriorate due to accidental damage.
Calculation of unedged boards
The shape of the mentioned product has incorrect proportions, since such lumber does not have a rectangular section. Unedged boards are usually used for the construction of temporary structures or rough floors.
Builders use several methods to determine the number of parts in one cubic meter. However, these indicators are difficult to establish, since it is difficult to accurately calculate the number of products that have irregular shapes. Before calculating the cubature of an unedged board, you should consider in more detail each of the methods in order to choose the most convenient one. There are such methods:
- Batch.
- Piece method.
- Sampling method.
In the first method, the boards should be put in a bag andmeasure the required data. The next step is to determine the volume using the indicators that were obtained when taking measurements. If the question arises, how to calculate the cubature of the board on the floor (draft), then this option gives a clear answer to it, but this is not the fastest way.
When using the piece method, you will have to use numbers (in meters), which must be obtained taking into account the height and width of the unedged board. To calculate the average, you must first measure the minimum width of the product, and then the maximum. After that, add both numbers and divide by 2. In the same way, you should calculate the average height of the board. The final step is to multiply the received data by the length of the part.
The sampling method is used by builders if it is necessary to quickly calculate the cubic capacity of a large amount of lumber. What is the essence of this method? You need to take several boards, and then calculate them in the same way as in the batch version. The resulting indicators must simply be multiplied by the total number of products in the stack.
In closing
Lumber may be required in any construction, so it is important to purchase them in the required quantity in order to safely complete the construction of the object. However, for this you need to be able to calculate the volume of products, so the material described how to calculate the cubature of a board of two types: edged and unedged.
