Significant parameters in the carpentry are a high -quality cut of a trimming lumber. If the work is performed unprofessional, then this is characterized by the presence of fragments and potholes, which creates difficulties in further processing of the material and spoils the appearance of the finished product product. A qualitatively cut board should not have barriers and potholes, differing in a flat surface.
Various knots also have influence on high -quality cuts. In addition to the fact that their presence spoils the appearance of the product, these elements violate the property of the uniformity of the structure of lumber and the overall integrity of the board. Due to the knots, the strength of unreasonable boards decreases during their processing by stretching the fibers on the bends. This can also determine the fibrous curvature and, as a result, the curvature of lumber itself. The non -cramped board will be better if it is as few knots as possible on it. In general, the interior design of a country house can be very different.
Cracks remain no less important that can be apt, dawning, frosty, excluded. This defect reduces the quality of the starting material, which affects strength, integrity and reduces the life. A high -quality board should be without cracks. The choice of the board is determined by its possible warning, which is a change in the shape of the cross section, which occurs after moisturizing or drying the board.