For homeowners, retaining walls are an excellent way to battle soil erosion while also giving your yard more planting space. In addition, they can serve as a focal point that can be fun to plan around ...

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 ...