The answer to how to install a retaining wall is to carefully plan the project, prepare the site, build a sturdy foundation, and install the wall blocks or stones properly. Retaining walls help prevent soil erosion and provide terracing for landscaping, but they require precise installation to be safe and long-lasting.
Start by determining the size and placement of the retaining wall, taking into account the slope of your yard, drainage needs, and any local building codes. Excavate the area, level the ground, and compact the soil to create a stable base. Then, lay a gravel or concrete foundation and begin stacking the wall blocks or stones in an interlocking pattern. Use mortar or adhesive as needed to secure the blocks. Finally, backfill behind the wall with gravel or crushed stone to allow for proper drainage.