Before getting timber, it is necessary to decide on what breed of wood to you will be most acceptable, to consider its amount, form and way of processing. If to be guided when choosing by these factors, then the product collected from wood will gain all necessary characteristics.
Timber can be qualified on way of processing, the sizes, form and breed of wood. Knowing these qualifying signs, you without effort will be able to pick up those construction materials which will be most acceptable for the solution of the tasks set for you. Besides, their quality characteristics will depend on type of the chosen materials directly. In this regard it is important to know what types of timber can be issued producers.
Ways of processing of timber
The considered materials by method of processing can be cut off and not cut off. All four parties of board or bar undergo processing which purpose is creation of plain surface in the cut-off products. As a rule, such wood is used for interior finish of rooms. Not cut off materials after cut of log do not pass additional treatment and are used for creation of designs in which it is not necessary to have clean, plain surfaces.
Classification of material by form and size
Choosing sawn timber, you for certain first of all pay attention to what it has the form and the size. Now the greatest distribution was received by such forms as rails, boards, bars and bars, cross ties, quarter timbers and the croaker. The most widespread material unambiguously are boards. They can have thickness up to 100 mm and width twice exceeding thickness. During the carrying out construction jobs and assembly of various designs the bar uses not smaller popularity. It can have width and more than 100 millimeters thick and differs in high resistance to mechanical loadings. The croaker is waste of woodworking which are rather often used at assembly of various designs. For example, if you need to build temporary scaffolding or to put protections, then the croaker for this purpose will be ideal.
Classification by breed of wood
On breed of wood the considered materials can be coniferous or deciduous. As it becomes already clear from the name, coniferous timber is made from coniferous breeds of tree – fir-tree, pine, larch, cedar, fir. Deciduous turn out after cut of oak, aspen, birch, beech, poplar, maple, etc. Each species of tree has the specific properties. For example, the oak differs in high hardness, and the fir-tree contains large amount of pitches in the structure.