Dwell time — the fraction of a second a ball stays in contact with a paddle face — shapes how a paddle feels more than almost any other variable. Understanding the physics behind it explains why thicker cores play differently, and why that difference matters for your game.

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.