A Mason’s Guide to 9 Different Types of Retaining Walls

Retaining walls are the unsung heroes of sloped landscapes. They do it all while looking amazing and enduring a myriad of challenges, from extra pressure to environmental factors. It’s no surprise that more and more homeowners keep integrating them into their outdoor spaces.

If you’re one of those homeowners, you know the choice isn’t easy. There are many different types of retaining walls available, so how can you truly pick the one that fits your needs, yard, and lifestyle perfectly? Our seasoned masons, serving Stamford, CT, and beyond, can help. You’ll find everything you need right here, including local tips only Connecticut residents would know.

What Are Retaining Walls?

Before we discuss the 10 different kinds of retaining walls, we have to take it back to the basics: what are retaining walls, and what do they do? In simple terms, a retaining wall is a rigid structure designed to restrain soil from slopes.

They’re used in geotechnical engineering to counteract lateral earth pressure, allowing us to carve usable, flat areas out of hillsides. In Stamford’s hilly neighborhoods, a proper retaining wall system is indispensable for creating driveways, terraced gardens, safe walkways, and BBQ-ready patios.

The Main Benefits of Retaining Walls

Truth be told, no matter the type of retaining wall you choose (each of which comes with its own advantages and disadvantages), you get a variety of benefits. These are:

• Erosion Control: Stop rainstorms from washing valuable topsoil (and mulch) downhill.
• Added Usable Space: Enjoy patios, play zones, or parking on terrain that would otherwise be too steep.
• Foundation Protection: Divert water away from basements and crawl spaces, a major win for older homes.
• Visual Appeal: Layered stonework or sleek concrete can transform a bland slope into a stunning focal point.
• Property Value Boost: A properly engineered wall signals structural integrity and thoughtful landscaping, attracting potential buyers.

1. Gravity Retaining Wall

Among all retaining wall types, gravity walls are, quite honestly, the most famous. These constructions rely on sheer mass (usually stone, concrete blocks, or cast-in-place concrete) to resist soil pressure. Then, the wall’s weight pushes back against the earth.

Pros

• Straightforward design; requires minimal engineering for low heights.
• Accepts a wide variety of facings (such as natural stone veneers).
• Excellent durability when built with quality masonry.

Cons

• Bulky footprint; you’ll lose some yard space behind the wall.
• Typically limited to 3–4 feet unless reinforced or terraced.
• Requires a solid gravel or concrete footing.

2. Anchored Retaining Wall

If you’re sticking to common types of retaining walls, anchored walls are perfect if you have limited space. They use steel cables or rods (anchors, hence the name) that extend from the wall back into the soil, where they are secured with concrete deadmen or helical anchors. Tension holds the wall upright.

Pros

• Enables thinner walls (even sheet pile) to retain large loads.
• Ideal for tight city lots where space is restricted.
• Can retrofit failing walls without full demolition.

Cons

• Higher engineering and installation costs.
• Anchors may conflict with underground utilities.
• Periodic tension checks are recommended.

3. Cantilever Retaining Wall

Cantilever walls are L-shaped reinforced concrete base slabs that use the weight of backfill placed over the heel to counterbalance lateral forces. Think of them as levers branded into the soil. If you’re planning a commercial landscaping project, this is a great retaining wall option.

Pros

• Uses less concrete than other types of walls of the same height (gravity ones).
• Thin, clean profile suits modern landscapes.
• Long life span when properly waterproofed.

Cons

• Precise engineering is required because even minor mistakes can lead to cracking.
• Reinforcement steel can corrode if drainage is poor.
• Construction time is longer due to formwork and curing.

4. Gabion Retaining Wall

Among all the styles of retaining walls, gabion walls are the ones you’ll see along shorelines or on cliffs, helping prevent flooding, landslides, and coastal erosion. These retaining wall solutions are rectangular wire baskets filled with rocks and stacked like oversized building blocks. The mass and permeability counteract earth pressure while letting water pass through.

Pros

• Extremely flexible, making them perfect for sites subject to freeze‑thaw cycles.
• Environmentally friendly; you can reuse onsite stones.
• Permeability virtually eliminates hydrostatic pressure.

Cons

• Industrial aesthetic isn’t for everyone (can be softened with vines).
• Wire cages may rust in coastal air unless galvanized or PVC‑coated.
• Taller walls need internal tie‑backs.

5. Sheet Pile Retaining Wall

There are various types of retaining wall materials, but sheet pile walls use the ones you rarely see. These are created with interlocking steel, vinyl, or wood planks driven vertically into the ground, forming a continuous barrier.

Pros

• Excellent for soft soils and waterfront applications.
• Minimal excavation on the front side; great for property lines.
• Quick installation with vibratory hammers.

Cons

• Limited to about 6–7 feet without anchors.
• Steel sheets require corrosion protection.
• Not as visually appealing as masonry.

6. Counterfort Retaining Wall

What happens if none of the common types fit your needs? No problem, there are still other walls in the competition. Counterfort retaining walls are the runner-up when cantilever ones are inefficient. Built with thin vertical webs, called counterforts on the back, that tie the wall and footing together, these structures reduce bending stress and enhance stability.

Pros

• Efficient for heights above 25 feet, so they are mostly seen in highway overpasses.
• Less concrete than a pure cantilever of the same height.
• Counterforts double as key drainage channels.

Cons

• Overkill for most residential jobs in the suburbs.
• Complex formwork raises labor costs.
• Requires deep excavation to fit the heel.

7. Mechanically Stabilized Earth Wall (MSE Wall)

Mechanically Stabilized Earth retaining walls aren’t really for residential projects. These structures use alternating layers of compacted granular fill and horizontal geosynthetic strips or steel grids to reinforce soil. Precast concrete panels or dry‑stack blocks form the facing.

Pros

• Handles very tall structures, even 50 feet and beyond.
• Attractive modular blocks blend effortlessly with garden designs.
• Flexible system tolerates minor settlement without cracking.

Cons

• Geogrid layers need significant rear space; not ideal for narrow yards in downtown Stamford.
• Proper compaction is critical; therefore, it is not recommended for DIYers.
• Upfront material ordering must be exact to avoid delays.

8. Crib Retaining Wall

Crib walls are a type of gravity wall constructed with interlocking boxes of precast concrete or timber (the cribs), filled with granular soil or stone, creating a sturdy open‑cell structure.

Pros

• Fast dry‑stack assembly, meaning no mortar is needed.
• Good drainage through the crib cells.
• Timber versions are affordable for small garden walls.

Cons

• Timber cribs have a shorter lifespan (15–20 years) before rot sets in.
• Concrete cribs can look utilitarian unless dressed with plantings.
• Requires a level foundation to prevent racking.

9. Hybrid Retaining Wall

Finally, hybrid walls are the best of both worlds. Seriously. These constructions combine two or more technologies, typically a gravity stone veneer in front of an MSE core, to balance aesthetics, cost, and engineering constraints.

Pros

• Tailor‑made performance; you get the best of multiple systems.
• Allows beautiful natural‑stone faces without the price of a full‑depth wall.
• Adaptable to tricky site conditions.

Cons

• Requires coordination between specialty trades.
• Engineering oversight is a must to ensure components work together.
• Slightly longer build schedule.

Common Materials for Retaining Wall Construction

Brick

Own a Colonial-style home near North Stamford? Classic clay bricks offer timeless charm that no other material can quite match. They are relatively lightweight, making them ideal for low gravity walls or veneers over concrete backings.

Natural Stone or Rocks

What’s not to love about natural stone walls? The options are wide and stunning, from Connecticut fieldstone to imported granite. Whichever you choose, natural stone provides unparalleled beauty and durability. Moreover, you can opt for dry-stack techniques (the most DIY-friendly way to build your own retaining wall) for proper drainage, a must in Stamford’s freeze-thaw climate.

Concrete

Concrete walls are, by far, the most popular. Whether in the form of precast blocks, poured-in-place walls, or concrete sleepers, these structures deliver incredible strength. If you’re not a huge fan of the corporate look, modern pigments and surface textures mimic stone while maintaining concrete’s structural advantages.

Top 3 Retaining Wall Design Ideas

Not everyone wants a simple gravity wall in their yard. Sure, retaining walls can be both functional and beautiful, but we know that, over time, they can become boring for many homeowners. Good news: these structures can easily integrate other features. Below are a few examples of retaining wall design ideas you can try out:

1. Terraced Gardens: Stagger two or three low gravity walls to create planting beds that cascade down a slope.
2. Integrated Seating Wall: Don’t have anywhere to sit? Extend your patio’s space with an 18‑ to 24‑inch concrete block retaining wall topped with bluestone.
3. Add a new walkway: Tie multiple terraces together by using pavers, gravel, or granite; steps are optional if the elevation shifts abruptly.

How to Choose the Perfect Retaining Wall Type

Even with all the information presented above, we know (and completely understand) that making a decision is overwhelming. For that reason, we’ve created a simple step-by-step guide to help you choose:

1. Assess the type of soil and slope: For example, sandy soils drain well but exert less pressure than heavy clay soils, and steeper grades generally require stronger systems, such as cantilever or MSE.
2. Define the wall’s job: Is it purely decorative, supporting a driveway, or taming a hillside? Load requirements directly influence wall selection and cost.
3. Check space constraints: Urban lots may not allow deep anchors; a slim cantilever might save the day.
4. Consider aesthetics: Historic districts often favor natural stone, while contemporary homes lean toward sleek concrete panels.
5. Plan for drainage: Drainage is essential for the success of your structure. No wall survives long without a perforated pipe, gravel backfill, and a filter fabric to keep silt at bay.
6. Budget realistically: Material, labor, and engineering fees vary widely. Research prices in your area, request multiple estimates, and never compromise quality for affordability.