Paddle thickness is the single most-asked spec question in pickleball, and the truth is more practical than the marketing copy suggests. A few millimeters of core thickness changes how the ball comes off the face, how forgiving the sweet spot is, and whether the paddle rewards aggressive drives or kitchen-line touch. Below: what 13mm, 14mm, and 16mm actually do, why the vast majority of players land on 14mm or 16mm, and how to pick between them.