Retaining walls aren’t just there to hold back soil. They shape the look, feel, and function of your outdoor space. From taming a steep slope to preventing erosion or creating more usable yard space, the right wall can completely change how you enjoy your property. And when it’s designed well, it’s built to last.
At JPK Landscaping, we’ve seen firsthand how the right retaining wall can add structure, stability, and style all at once. There are four main types: gravity, cantilever, anchored, and mechanically stabilized earth (MSE)—each built for different site challenges. From the simplicity of a gravity wall to the space-saving design of sheet piles, every choice brings its own strengths. Here’s a closer look at how each one works, so you can feel confident in choosing the best fit for your landscape.
Why Retaining Walls Matter
Retaining walls play a crucial role in transforming landscapes by preventing soil erosion, stabilizing steep slopes, and managing water flow. They help us create usable outdoor areas by providing support where drastic elevation changes exist. Without them, properties on uneven terrain often face issues like landslides or flooding that compromise safety and functionality.
These walls also improve durability and reduce maintenance costs for hardscape elements like patios, gardens, and driveways. By retaining soil effectively, they protect surrounding installations from damage caused by shifting ground or uncontrolled water runoff. For example, a well-designed anchored retaining wall can withstand immense lateral pressure, ensuring long-term stability.
In addition to functionality, retaining walls enhance aesthetics. Materials like stone, concrete blocks, or treated timber provide versatile design options that can complement various architectural styles. Whether it’s a gravity wall for a rustic garden or an MSE wall for large infrastructure, these structures integrate functionality and charm seamlessly into the landscape.
The 4 Types of Retaining Walls
Retaining walls serve various purposes in landscaping and engineering, with distinct designs tailored to specific conditions. Here, we explore the four main types—gravity, cantilevered, sheet pile, and anchored retaining walls—along with their functionalities, materials, and best applications.
Gravity Retaining Walls
How they work
Gravity retaining walls rely on their mass to stabilize and hold back soil. The pressure from the retained soil is counteracted by the weight of the wall itself. These walls often include a slight backward slope for added stability and may require a small trench or concrete footer at the base for additional support.
Best for
They’re best suited for projects involving minimal height—typically up to 10 feet—like garden terraces or low-level landscaping. Gravity walls work well in areas with stable soil and low lateral pressure.
Common materials
These are constructed using a variety of materials like stone, masonry, concrete blocks, or precast concrete. Examples include unmortared bricks, large stone boulders, and interlocking concrete blocks.
Cantilevered Retaining Walls
How they work
Cantilevered retaining walls consist of a reinforced concrete base and a vertical stem, forming an inverted T-shape. The base includes two sections: the heel, which extends under the backfill, and the toe, which lies in front of the wall. The retained soil atop the heel applies force to stabilize the wall against lateral earth pressure.
Best for
Because of their efficiency, cantilevered walls are ideal for larger or taller installations, especially where the elevation changes significantly. They’re commonly used for retaining walls exceeding 10 feet in height, such as in commercial spaces or steep hillside landscaping.
Common materials
These walls are typically crafted from reinforced or precast concrete. Some designs also feature prestressed concrete to enhance durability.
Sheet Pile Retaining Walls
How they work
Sheet pile walls use thin sheets of interlocking material driven deep into the ground to resist lateral soil movement. The pressure from retained soil is managed by the vertical strength and interlocking nature of the sheets.
Best for
These are best in areas with tight spaces or soft soil conditions, such as near water bodies, sloped embankments, or excavation sites. They’re also suitable for both temporary and permanent retaining needs.
Common materials
Common materials include steel, wood, or vinyl sheets designed to interlock. Steel is most popular due to its durability, especially in permanent applications.
Anchored Retaining Walls
How they work
Anchored retaining walls incorporate steel cables or tiebacks embedded deep into the soil for additional support. The tiebacks anchor into stable soil layers or bedrock, distributing force to resist sliding and overturning, which enables these walls to be thinner than gravity or cantilevered walls.
Best for
These walls are ideal for projects requiring thin walls or where significant soil pressure exists, such as in areas with limited space or steep slopes. They’re a cost-effective choice for tall retaining structures exceeding 15 feet.
Common materials
Anchored walls typically use reinforced concrete, steel, or timber for the main wall structure, combined with high-strength steel cables or rods for the anchoring system. The anchors are often grouted into place to ensure long-term stability.
How to Choose the Right Retaining Wall
Selecting the right retaining wall starts with understanding your space—its soil type, slope, available room, and how water moves through it. All of these factors influence which design will perform best over time.
By weighing these elements and matching them with the strengths of each wall type, we can build a solution that’s as functional as it is good-looking. Whether you’re working with a small garden or a large property makeover, the right retaining wall adds stability, safety, and style.
If you’re ready to explore options for your own landscape, our team at JPK Landscaping can walk you through the possibilities and provide a free, no-obligation quote to get your project started.
