1, specification: from the stability of the board, the smaller the floor size, the better the deformation resistance. Therefore, we should choose short and narrow solid wood flooring, and try to reduce the bending, twisting, warping, shrinking and arching of solid wood flooring.

2. Moisture content: Due to the different geographical locations of cities in China, the moisture content of wood is also different. When shopping, it is best to buy a floor with a balanced moisture content and partially balance the moisture content.

3. Machining accuracy: This is an important factor. Put it together with a sample to see if it is smooth, whether the tenon and groove fit, the installation gap and the anti-deformation groove fit perfectly. A good floor should be fine in workmanship, accurate in size, flat in corners and no height difference.

4. Appearance: A good floor appearance should be free from any defects, such as rot, dead joints, knots, wormholes, cracks, and skin inclusions. At the same time, the tenon and groove around it are complete, and the surface paint will greatly affect the beauty and environmental protection. You can see if there are any needle marks, indentations and gaps.

5. Brand: When choosing solid wood flooring, you should carefully check all kinds of certificates and logos of its products to distinguish the quality of the products. The real imported brand floor has complete quality and environmental protection quality certification certificates. Moreover, its products also have clear labels such as origin, variety, specification and factory date;