You can buy retaining wall blocks at Home Depot for as little at 60 cents each, and spend up to $3 each for larger and nicer blocks. You’ll need a shovel, mallet, hand tamper, wheelbarrow, yard ...

So, if you're planning to build a 4-foot retaining wall, convert 4 feet to inches (4 times 12) to get 48 inches. Then, divide 48 inches by 8, and you'll arrive at a 6-inch depth.

Build a patio on a slope and it can be a real focal point in your garden design, offering an elevated view, an intimate sunken space or even several terraces ...

ASK THE BUILDER | The soil type at your home will make a difference. I’ve found that sandy soils are the ones that seem to play the best with gravity retaining walls.