One of the most common types of lumber is edged board. It is made by sawing from whole logs. At the same time, the edges are trimmed so that they do not have a crust (obzol). In some cases, a similar defect is present in a small amount. Most often, its value is regulated by GOST standards. This type of lumber is widely used in construction.
In Russia, the sale of edged boards is carried out in several standard sizes. So, the product is available with a thickness of 22, 25, 30, 40, 50, 100 or 150 mm, a width of 100, 150 and 200 mm, and the length can be 3, 4 or the most common option is 6 meters. When performing work, the most optimal size option is selected that allows the most efficient use of edged sawn timber, while ensuring the necessary reliability of the structure. It is also worth noting that it is possible to manufacture boards on an individual order in case a certain size is required.
In addition to differences in size, edged boards are also characterized by wood species, surface cleanliness, and the number of completed processing processes. In the aggregate of all these indicators, the grade of lumber is determined . And it is precisely this criterion that mainly forms the cost of the product and, of course, quality.
Edged board is divided into five grades, namely: selected (best) and 1st, 2nd, 3rd and 4th. The indicator is assigned to lumber according to GOST 6564-84.
In construction, boards from pine, spruce, larch, birch, etc. are most often used. Each of these types of wood has its own certain pros and cons. The choice largely depends on the scope of lumber, operating conditions, design.
In many ways, the quality of edged boards is determined by the conditions of their storage. Most often they are stacked in piles. In this case, it is necessary to ensure good air circulation, in particular, its inflow inside the laid lumber. Due to this, wood is dried, and the boards do not rot.
In addition, to preserve the original appearance and quality, the edged board is treated with special antiseptics that protect against rot, damage by fungi, tree-damaging insects. Manufacturers, as a rule, carry out such processing under high pressure, as a result of which a deeper penetration of the composition into the material is ensured. Which, accordingly, leads to better protection of the material. A product processed in this way will last a long time and reliably.
Edged board is widely used in construction both when performing certain work, and to create specific structures, both for interior decoration and for exterior. Most often, edged boards are used in the construction of floors, as well as in the construction of roofs, the manufacture of ceilings, frameworks for partitions, rough flooring and much more. Lumber also finds its use in furniture production. For rough finishing, boards of a lower grade are selected, for important elements of the building, lumber of the best quality is used.