Solid board is a high-quality product that requires certain rules in the process of storage, installation and operation. In accordance with the requirements of DSTU B B.2.7-243: 2010 and DSTU 4922: 2008, which we focus on in the manufacture of our products, the humidity of the board at the time of purchase should be 9 ± 3%. Differences in color, structure, as well as the presence / absence of typical features for wood, such as cracks, knots, etc. can be expressed more or less – depending on the variety and species of wood, according to the requirements of DSTU 2152-93. The company provides a test report for compliance with the requirements of DSTU mentioned above.