Floor specifications: In terms of board stability, the smaller the floor size, the better the resistance to deformation. For this reason, choose a short and narrow solid wood floor to minimize the exaggeration, twist, scoop, shrinkage, arching, etc. of the solid wood floor. Phenomenon. Flooring experts believe that short ones are better than long ones and narrow ones are better than bright ones, and they are inexpensive and good-quality. However, wide boards are now popular in the market. Competitive boards are more beautiful and generous than narrow boards, with stretched texture and complete patterns. However, qualified wide boards must undergo strict material selection and quality acceptance. Generally, there should be anti-deformation grooves on the back of wide floors, and the groove depth should be one third of the thickness of the floor. If it is used for floor heating, it should be thin rather than thick, generally 8-12mm thick.