Material Matters
2. Exploring Your Options
Alright, let’s talk turkey — or, more accurately, concrete, wood, and stone. When it comes to retaining walls, these are the usual suspects. Each has its own set of pros, cons, and price tags. Which one will reign supreme in your quest for the cheapest strongest retaining wall?
Treated lumber is often touted as a budget-friendly option, and for smaller walls, it can be. However, “treated” is the keyword. Untreated wood will rot faster than you can say “erosion.” And even treated lumber has a lifespan, typically shorter than concrete or stone. Plus, you’ll need to factor in drainage considerations to prevent water from accelerating decay. If your design goes high enough, you will need to consult a professional to ensure it is designed and installed correctly, so it does not fail.
Concrete blocks (like cinder blocks or retaining wall blocks) offer a good balance of strength and affordability. They’re relatively easy to work with, especially if you choose a modular system designed for retaining walls. The downside? They can look a bit… industrial. But fear not! You can always dress them up with paint, stucco, or a climbing vine or two. And you have to pour a proper base. A compacted gravel base is crucial for stability and drainage. Don’t skip this step! It’s tempting to save a few bucks and just plop the blocks on the dirt, but trust me, your wall will thank you (and last longer) if you do it right.
Natural stone is undeniably beautiful, but it often comes with a steeper price tag, especially if you’re not sourcing it locally. The labor costs can also be higher, as fitting irregularly shaped stones requires skill and patience. That being said, if you’re a DIY enthusiast with a knack for puzzle-solving and access to affordable stone, it could be a viable option. Look for local quarries or suppliers; they often have better deals than big box stores.