Wooden beams are a popular construction material. It is in demand for the construction of residential buildings, outbuildings, pens for animals, small structures - stairs, swings, verandas and gazebos in the garden. During construction, the timber must be connected to each other. There are many ways to do this.
Description and scope of timber
Timber - type of lumberobtained by sawing a tree trunk lengthwise. The timber differs from the board in proportions: here the thickness is comparable to the width, but noticeably less than the length. The section is square or rectangular.
By method of processing timber is divided into 4 types:
- two-piece - differs and aligns only from two opposite sides;
- three-cante - material processed from 3 sides;
- four-cant - all sides of the bar are even and smooth;
- calibrated - material from the driest wood, processed from 4 sides, characterized by the most accurate dimensions.
The first 2 types are used for the construction of outbuildings, baths, garages. 4-edged is in demand in the construction of housing and small architectural structures. Calibrated - the most expensive material - is used to construct buildings that must meet the highest aesthetic criteria.
The timber is distinguished and by manufacturing method.
- Profiled - a bar of square or rectangular cross-section, cut from the trunk. The most popular option for the construction of residential buildings.
- Rounded - 1 or 2 sides of the lumber has a rounded shape that imitates a log. The rounded version is used for the construction of houses in the Russian style.
- Glued - it is obtained by gluing fragments of different lengths. Here the wood fibers are directed in different directions. Such a beam does not shrink and is completely insensitive to moisture, so it is actively used in construction and in the manufacture of furniture. However, it loses another advantage of wood: it cannot remove excess moisture from the house to the outside.