What is one common material used for rocket fins?

Balsa wood or plywood is commonly used for rocket fins due to their excellent strength-to-weight ratio. These materials are lightweight, making them suitable for maintaining the overall weight of the rocket while providing sufficient structural integrity needed for stability during flight. Balsa wood, in particular, is favored for its easy workability and ability to be shaped into aerodynamic designs, enhancing the rocket's performance. Plywood, being denser and more rigid, can also offer added strength, making it suitable for larger or more powerful rockets. The combination of these characteristics makes balsa wood or plywood a preferred choice for hobbyists and builders aiming for effective and efficient rocket fins.