The thickness of the paddle's core is commonly referred to in pickleball as 13 mm. The innermost layer of the paddle, known as the core, is what gives it structure and dictates how well it performs. The core can offer a softer, more cushioned sensation and a bigger sweet spot if it is 13 mm thick, which is regarded as being on the thicker side. For players searching for a pickleball paddle that gives greater forgiveness and control, this may be advantageous. The performance of a pickleball paddle is not, however, solely dependent on the core's thickness. The performance of the pickleball paddle can also be influenced by other elements, like the materials used in its construction, its weight, and the maximum grip size and shape of the paddle head. It's vital to keep in mind that the thickness of the core might range between various paddle models and producers and that there are other things to take into account when selecting a pickleball paddle. It's advisable to test out various paddles to discover the one that best fits your playing style, feels most natural, and comfortable in your palm.