The number of layers in a table tennis racket mainly affects its performance. Table tennis rackets with different layers have different characteristics, and the selection needs to be determined based on individual technical level, playing style, and needs.

The common layers of table tennis rackets are 5, 7, and 9. The 5-layer pure wood bottom plate is made of 5-layer pure wood thin plates glued together, which is lightweight, flexible, and elastic, with better deformation than the thicker bottom plate. It has a relatively transparent and sharp feel, which is conducive to energy storage, but its base strength is not very strong. When hitting the ball, the speed is relatively slow, making it easier to control the ball. Especially when pulling the loop ball, the friction time between the racket and the ball is relatively long. Therefore, it is suitable for playing the loop ball, rotating balls, and the combination of loop ball and fast attack style play.

The 7-layer pure wood bottom plate is more suitable for the combination of near platform fast attack and arc circle style gameplay. Due to the increase in the number of layers and weight, the 9-layer pure wood bottom plate has minimal deformation, extremely fast hitting speed, clear touch, and maximized power, but it is not conducive to rotation, making it suitable for pure offensive gameplay.

In addition to pure wood floor panels, there are also carbon/fiber floor panels on the market, which are usually 5-layer pure wood+2-layer carbon or fiber structures. Carbonized rackets can increase speed, but their lifespan is relatively short.

In summary, there is no fixed answer to the number of layers to choose for a table tennis racket, and it needs to be determined based on individual needs and preferences. If you are a beginner or enjoy controlling and spinning the ball, a 5-layer pure wood base may be more suitable for you; If you prefer fast attack style gameplay, then a 7-layer pure wood base may be more suitable for you; If you pursue ultimate attack speed and strength, then a 9-layer pure wood or carbon/fiber bottom plate may be your choice.

Finally, it is recommended to personally try different styles of table tennis rackets before purchasing, in order to find the most suitable one for oneself.