How do you build a small retaining wall with concrete blocks?

How do you build a small retaining wall with concrete blocks? Do I need a footing for a block retaining wall? A trench filled with gravel provides a suitable foundation base for a short, step-back retaining wall with three-five courses (each layer of blocks is called a “course”). A buried structural footing is usually required … Continue reading How do you build a small retaining wall with concrete blocks?