In the process of designing any structure, special attention is paid to the calculations of building materials, since the cost of the object will depend on this. The greatest difficulty, especially for non-specialists, is usually the calculation of the cubic capacity of lumber, because they are not sold by weight or by the piece. A simple buyer often does not know that the cost of lumber is formed taking into account their quality, and here the species, grade, degree of processing and even length play a role.
What to consider when buying lumber?
The quality of lumber is regulated by a multitude of GOSTs, regulatory documents and technical specifications, with which individual developers, of course, are not familiar. This is what sellers of this category of building materials use. Therefore, even if you manage to correctly calculate the cubaturelumber, it is not yet a fact that you will buy a quality product, and its quantity will correspond to the one for which you paid money. In order not to get into an unpleasant situation, you need to know the basic rules for measuring the most common types of lumber.
Learning to count correctly
In the woodworking industry, there are two concepts of a cubic meter - dense and folded. Lumber prices in the price lists are indicated per cubic meter, but unscrupulous sellers can sell lumber by stock cubic meters, in which case you will have to pay part of the money for air. To prevent this from happening, storage cubic meters should be converted to dense cubic meters. The current standards provide for sorting the slab into two categories, based on its length - up to 2 m and over 2 m. The slab is stacked by alternating thick and thin ends, as well as the slab surface. Laying should be done as tightly as possible. The stacks must have the same height and right angles. Multiplying the length, width and height of the stack, we get the folding cubature. Now it must be transferred to a dense cubic capacity. Although the calculation will be approximate, it will still help to establish the true volume of lumber. It looks something like this: folded / dense=1.3/1 m3.
Calculation of cubic capacity of timber
It is much easier to calculate the cubature of edged boards or timber, as these types of lumber have clear shapes, therefore, in packagesare densely packed, and 1 cubic meter corresponds to its value. For these materials, you need to measure the length, height and width - this will be the volume of one unit, by calculating which, you can already easily calculate the cubic capacity of lumber needed for purchase. To do this, the result must be multiplied by the required number of elements. Naturally, this formula will be valid only if each unit of material has the same linear dimensions.
Calculation of cubic capacity of roundwood
It is more difficult to calculate the cubic capacity of roundwood - here you can't do without a tape measure and a calculator, so such calculations are made using special tables or software products. Since logs can vary in size, it is necessary to measure each individual element. So, the calculation of the cubic capacity of this type of lumber is carried out as follows: the length of the log and its diameter are measured on the side where it is smaller. The data obtained is entered into a special electronic calculator or searched in a table. The result is the volume of one log.
