How much should a 14 year old boy leg press?

There are many factors that can affect how much someone can leg press. Including a person's age, weight, and height in determining the amount of weight that they can lift to avoid potential injury. As such, it is difficult to provide an exact amount of weight that a 14-year-old boy can leg press. It would be advisable for a 14-year-old boy to start very light and gradually increase the weight as they become stronger over time.