Concrete Blocks: These are a popular choice due to their durability and ease of installation. They are often used in DIY projects because they interlock, providing additional security to the wall.

Wood: Wooden retaining walls are more accessible and can be a DIY project. They are suitable for shorter walls and can add a natural look to the landscape.

Natural Stone: Stone walls offer a rustic, natural appearance and can be very durable. They are often used in more traditional or natural-looking landscapes.

Brick: Bricks are another common material used in retaining walls. They provide a uniform, clean look and are suitable for both residential and commercial applications.