1, floor 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. Floor experts believe that short is better than long; Narrow ones are better than wide ones and cheaper. However, wide plates are popular in the market now. Compared with narrow plate, wide plate is more beautiful, easy in texture and complete in patterns, but qualified wide plate must undergo strict material selection and quality acceptance. Generally, there should be anti-deformation grooves on the back of the wide floor, and the depth of the grooves should be one third of the floor thickness. If used for floor heating, it should be thin but not thick, generally 8- 12mm thick.

2. Moisture content of the floor: The moisture content of the wood floor is critical. The moisture content of the purchased floor must be equal to the local equilibrium moisture content. When buying a floor, be sure to determine the moisture content. If you don't have a moisture content tester, don't buy its board. The method of measuring the equilibrium moisture content is very simple. First, measure the moisture content of the purchased varieties in the exhibition hall, and then unpack the purchased varieties to detect the moisture content of the wooden floor. If the difference of water content between them is only+1%-2%, it is a qualified product.

3. Material of the floor: Visually check whether the floor is made of the same material, and whether there are any material defects such as cracking, rot, peeling, dead knots, insect eyes and blue change on the board surface. Usually, there is no need to ask too much about color difference, clarity and texture, which is the natural property of wood. It is the color difference and changeable natural texture that show the natural color of solid wood floor, which is the fashion pursued by family decoration in the world at present.

4. Processing accuracy: the wooden floor is about 10, which can be assembled manually after unpacking. Touch by hand to see whether the machining quality, precision and finish are smooth and smooth, and whether the tenon-groove fit, installation clearance and anti-deformation groove are completely consistent. Observe the tongue-and-groove bite, assembly gap and height difference between adjacent plates. If the seam is tightly closed, there is no obvious difference in hand feel.

5. Floor after-sales: There are many wooden floor manufacturers in the market, and the quality is uneven. It is recommended to choose a good brand of wooden floor. These brand manufacturers will provide perfect after-sales service and have a certain warranty period. You can save a lot of heart.