If you're looking to fix up a sloped yard or finally add some structure to your landscaping, picking up some belgard allan block is probably one of the smartest moves you can make. It's one of those rare products where the name actually carries some weight because it's a collaboration between two of the biggest heavyweights in the hardscaping world. You get the clever engineering of Allan Block paired with the aesthetic finishes and manufacturing quality that Belgard is known for.
Let's be honest, most of us don't spend our weekends thinking about retaining walls. But the moment your backyard starts sliding into the patio or you realize you have zero level ground for a fire pit, these blocks become the most important thing on your mind.
Why this specific block matters
You might wonder why two different names are on the same product. It's actually a pretty cool setup. Allan Block is the company that basically perfected the design of the "segmental retaining wall." They came up with the hollow-core design and the way the blocks lock together without needing a bunch of messy mortar or pins. Belgard, on the other hand, is the king of style and distribution.
By using belgard allan block, you're getting a wall that is designed to stay standing for decades, but it doesn't look like a boring highway barrier. It has that high-end, textured look that fits in with modern or traditional homes.
The hollow core advantage
One of the first things you'll notice when you pick up one of these blocks is that it's not a solid chunk of concrete. It has a hollow center. Now, some people might think that makes it weaker, but it's actually the opposite.
The hollow core makes the blocks a lot lighter, which your back will thank you for after you've moved a hundred of them. More importantly, those holes get filled with crushed stone during the build. This creates a "rock-to-rock" connection that locks everything in place and allows for way better drainage. Water is the number one enemy of a retaining wall, and this design lets it escape instead of building up pressure behind the blocks.
Choosing the right look for your project
Not every retaining wall needs to look the same. Depending on where you live and what your house looks like, you might want something that looks like rugged, hand-hewn stone, or maybe something a bit cleaner and more geometric.
The belgard allan block lineup usually gives you a few distinct options:
- The AB Collection: This is the classic. It has a bit of a setback (the way the wall leans into the hill) and a nice textured face. It's the go-to for most residential projects because it's simple to install and looks great.
- The AB Europa Collection: If you want your wall to look like it's been there for a hundred years, this is the one. The blocks are "tumbled," meaning they have rounded edges and a more weathered, rustic appearance. It's perfect for cozy garden spaces or older, traditional homes.
- The AB Fieldstone: This one is a bit unique because it's a two-piece system. It mimics the look of natural stacked stone better than almost anything else on the market, but you still get the structural benefits of a manufactured block.
Preparation is the part everyone hates (but needs)
I'll be the first to tell you that digging a trench is the worst part of any landscaping project. It's sweaty, boring, and feels like you're getting nowhere. But with belgard allan block, the prep work is literally the foundation of your success. If your first row (the base course) isn't level, the whole wall is going to look like a roller coaster by the time you get to the top.
You generally want to dig a trench that's deep enough to bury at least half a block, plus about six inches of compacted gravel base. Don't use dirt or sand for the base. Dirt settles and sand shifts. You want a "3/4-inch minus" crushed stone that packs down tight. Once you get that first row perfectly level, the rest of the project actually goes by surprisingly fast.
The "No-Pin" system makes life easier
If you've ever worked with some of the other retaining wall systems out there, you know how annoying those little fiberglass pins can be. You're always dropping them, losing them in the dirt, or realizing they don't quite line up.
One of the best features of the belgard allan block is the raised front lip. It's built right into the block. As you stack the next row, that lip catches on the row below it. This does two things: it automatically creates the correct "setback" (the slight lean into the slope) and it ensures the blocks won't slide forward over time. It's essentially Legos for adults, just much heavier and more permanent.
Handling curves and corners
Most yards aren't perfectly rectangular, and honestly, straight walls can look a little stiff. The beauty of this system is how it handles curves. Because the blocks have a tapered shape (they're wider in the front than in the back), you can easily create flowing, serpentine walls without having to cut every single block with a masonry saw.
If you're building a curve, just remember that the "lean" of the wall means the radius will change slightly as you go higher. It sounds complicated, but as you start stacking, you'll see how the blocks naturally want to move. For corners, you'll likely need some specific corner blocks that are finished on two sides, which Belgard also provides to match the rest of your wall.
Don't forget the capstones
A wall isn't really finished until you put the "hat" on it. Capstones are those flat, solid pieces that go on the very top row. They don't just make it look finished; they protect the hollow cores from filling up with leaves, debris, or too much direct rainwater. Pro tip: Use a good quality concrete adhesive to glue these down. You don't want a capstone sliding off when someone decides to sit on the wall.
Maintenance is surprisingly low
Once your belgard allan block wall is up, you don't really have to do much. Unlike wood timber walls that eventually rot or railroad ties that leach chemicals into your soil, these concrete blocks are pretty much "set it and forget it."
Every now and then, you might want to hit it with a pressure washer if you live in a damp area where moss or algae likes to grow. Some people like the mossy look because it makes the wall look aged, but if you want that "just installed" shine, a quick spray once a year will do the trick. If a block ever does get chipped or damaged, the beauty of the segmental system is that you can theoretically pop that section out and replace it without tearing down the whole hillside.
Wrapping it up
At the end of the day, using belgard allan block is about peace of mind. You're building something that's meant to hold back thousands of pounds of earth, so you want to use materials that are engineered for the task. It's a solid investment that genuinely adds value to your property.
Whether you're a weekend warrior tackling a small garden border or you're hiring a pro to terrace your entire backyard, these blocks hit that sweet spot between DIY-friendly and professional-grade. It might be a lot of heavy lifting in the beginning, but once you're sitting on your patio looking at a perfectly level, beautiful wall, you'll be glad you didn't cut corners.