Retaining walls were first created to perform the simple and necessary task of holding back earth. And with good reason: Erosion is a natural process, but when it means soil being washed off your ...

Size the trench so there's enough room for the retaining wall block and at least 8 in. of space behind it. Excavate deep enough to completely bury at least one full course, including space for 6 to 8 ...

For thousands of years, builders have used retaining walls to create flat vertical walls or gently sloping terraces on hillsides. While constructing a solid, lasting retaining wall might look ...