Major League Baseball (MLB) players use wooden bats. While individual preferences lead to variations, common characteristics regarding size and weight exist, alongside official regulations.
Bat Length
According to MLB rules, a bat must be a smooth, round stick not exceeding 2.61 inches in diameter at its thickest part and no more than 42 inches in length. However, players typically use bats shorter than the maximum allowed.
- The most common lengths for MLB players range from 32 to 34 inches.
- Bats measuring 33 or 34 inches are frequently favored.
Bat Weight
There are no official minimum or maximum weight restrictions for MLB bats. The weight is a crucial factor tailored to a player's swing mechanics and strength.

- Most MLB bats weigh between 30 and 34 ounces.
- A key aspect is the "drop weight," which is the numerical difference between the bat's length in inches and its weight in ounces. For professional wood bats, this drop is typically -2 to -3 (e.g., a 33-inch bat might weigh 30 or 31 ounces).
The specific dimensions are highly individualized. Common wood types for MLB bats include maple, ash, and birch.