Retaining Wall Materials Compared: Which Is Right for Your Yard?

If you're planning a retaining wall, one of the first decisions you'll face isn't design — it's material. The material you choose affects how much the wall costs, how long it lasts, how much maintenance it needs, and how it looks against your home and landscape. Here's a practical breakdown of the most common retaining wall materials we work with, so you can walk into your consultation with a clearer sense of what fits your project.

Segmental Retaining Wall Block

Segmental block (also called interlocking or modular block) is the workhorse of modern retaining walls. The units are engineered to lock together without mortar, which makes them fast to install and highly consistent in appearance.

Pros:

• Strong load-bearing performance for walls up to several feet tall

• Wide range of colors, textures, and finishes

• No mortar joints to crack or stain over time

• Efficient installation, which helps keep labor costs down

Cons:

• Taller walls require geogrid reinforcement and proper engineering

• Less "natural" look than real stone, though textured finishes narrow the gap

This is usually our go-to recommendation for driveway retaining walls, tiered garden beds, and walls that need to look clean and uniform.

Natural Stone

Natural stone — whether dry-stacked fieldstone, mortared ledgestone, or large boulders — brings a timeless, organic look that manufactured block can't fully replicate. Every wall is unique because every stone is unique.

Pros:

• Unmatched natural character and texture

• Extremely long lifespan when built correctly

• Pairs well with naturalized planting beds and woodland-style landscapes

Cons:

• Higher material and labor cost, since stone is heavier and slower to place

• Skilled installation matters more here than with any other material

• Sourcing consistent stone can affect timelines

Natural stone tends to be the right call when a client wants their hardscaping to feel like it's always been part of the property, rather than something newly built.

Poured Concrete

Poured (cast-in-place) concrete walls are built with formwork and reinforced with rebar, then finished with a smooth, board-formed, or stamped texture.

Pros:

• Very high strength, well-suited to tall or structurally demanding walls

• Can be finished in a wide range of textures and colors

• Minimal visible jointing for a clean, contemporary look

Cons:

• Formwork and curing time add to the schedule

• Repairs, if ever needed, are less straightforward than swapping a block

• Best suited to walls where engineering requirements are already pushing toward reinforced construction

We typically recommend poured concrete when a wall is doing serious structural work — think steep grade changes or walls supporting a driveway or structure above.

Timber

Timber walls, built from pressure-treated lumber or landscape timbers, are less common in new hardscaping work today but still show up in older properties and lower-budget projects.

Pros:

• Lower upfront material cost

• Warmer, more rustic look for certain garden styles

Cons:

• Shorter lifespan than block, stone, or concrete, especially in our wet coastal climate

• More prone to rot, insect damage, and eventual bowing

• Harder to match the clean, structured look most modern landscapes are going for

Because of our climate, we generally steer clients away from timber for anything load-bearing or long-term, and toward it only for very low, decorative garden edging.

Gabion Walls

Gabion walls use wire cages filled with stone, creating a distinctive textured, industrial-meets-natural look.

Pros:

• Excellent drainage, since the structure is inherently porous

• Striking visual texture that works well in contemporary and naturalized designs

• Flexible design — cages can be stacked, tiered, or combined with planting

Cons:

• Not the right fit for every architectural style

• Requires quality wire mesh and proper fill to perform well long-term

Gabion walls are a great option for clients who want something visually distinctive and are working with a modern or industrial aesthetic.

So, Which Material Is Right for You?

In most cases, the right material comes down to three questions:

1. How tall does the wall need to be? Taller walls lean toward segmental block or poured concrete for engineering reasons.

2. What's the look you're going for? Clean and contemporary favors block or concrete; natural and organic favors stone; industrial or textured favors gabion.

3. What's the budget? Segmental block generally offers the best balance of cost, durability, and appearance for most residential projects.

Every property and every grade change is different, which is why we start every retaining wall project with an on-site assessment rather than a one-size-fits-all recommendation.

Get a Retaining Wall Consultation

Square Yards Landscaping builds retaining walls throughout the Tri-Cities (Coquitlam, Port Coquitlam, Port Moody, Anmore & Belcarra), Burnaby, New Westminster, and Vancouver. Whether you're dealing with a steep slope, a driveway that needs support, or you simply want to terrace a sloped backyard into usable space, we can walk you through the material options that make sense for your site and budget.

Contact us to schedule a consultation.