In a retaining wall, these blocks are stacked together in several courses, and capped off with a concrete capstone at the top. The blocks are hollow, which makes them lightweight and easy enough ...

Learn how retaining walls prevent soil erosion and add beauty to your yard. Explore types, benefits, and materials for your perfect landscape solution.

However, modern segmental retaining walls (SRWs) emerged in the late 20th century when engineers developed high-strength concrete blocks with interlocking ... interlocking concrete units to retain ...

A dry stone ... can too. Concrete isn’t going away, but particularly in places defined by their steep landscapes, stone is a viable alternative for building retaining walls and water courses.