Best Materials for Retaining Walls: Comparing Popular Options

• Soil control: A retaining wall holds soil in place on sloped ground, preventing erosion, mudslides, and property damage after heavy rains or seasonal weather.
• Level out uneven terrains: By creating terraced steps, walls transform steep, unusable slopes into flat, functional areas for patios, gardens, or play spaces.
• Water runoff management: Integrated drainage stone and pipes let water escape behind the wall, reducing hydrostatic pressure and guiding runoff safely away from your foundation.
• Enhancing your outdoor space: Attractive materials and thoughtful placement add structure, depth, and visual interest, instantly boosting curb appeal and increasing overall property value.

The Best Retaining Wall Materials & Options

1. Mortared Natural Stone Wall

A mortared stone retaining wall is constructed using natural stones that are held together by mortar (a cement mixture), forming a solid structure. This type of wall is highly valued for its strength and timeless aesthetic. Because the stones are securely cemented in place, a well-constructed mortared wall can withstand substantial soil pressure without shifting. It is an excellent choice for taller walls or for situations requiring a highly durable structure. The appearance of mortared stone is often described as classic and polished.

Pros:
– Beautiful looks and rustic appearance
– Excellent durability
– Low maintenance requirements

Cons:
– Necessitates a meticulously installed drainage system

Dry-stack walls utilize natural stones without the use of mortar; instead, the stones are carefully stacked and interlocked using gravity and friction. These walls offer a charming, rustic aesthetic, showcasing only the rocks and natural gaps, rather than concrete. They are a traditional choice for countryside gardens and can beautifully blend into the landscape, often adorned with plants growing in the crevices.

Pros:
– They allow for natural drainage, as the small gaps between the stones enable water to pass through freely.
– They are resistant to damage from heavy rainfall.

Cons:
– The installation process is labor-intensive.
– They are recommended for shorter applications only, as taller dry-stack walls may become unstable.

Poured concrete retaining walls are created by pouring solid concrete into molds on-site, typically reinforced with steel bars for added strength. The result is a seamless slab of concrete that effectively holds back soil. This option is known for its clean, modern appearance and remarkable strength and durability.

Pros
– Extremely strong and durable
– Provides a smooth and minimalist aesthetic
– Allows for design flexibility, as it can be shaped into curves or corners more easily during the form-building process

Cons:
– Difficult to repair; fixing a crack in a solid wall is not as straightforward as replacing a block or stone
– Installation can be costly and complex, requiring specialized techniques and drainage systems

Concrete block retaining walls are a popular and cost-effective choice for homeowners. This type typically refers to segmental concrete block retaining wall systems—those pre-cast blocks you see at home improvement stores that stack together, often featuring interlocking edges or pins. These blocks come in various shapes, sizes, and surface textures.

Pros:
– They strike a great balance between cost and durability
– Installation is generally quick and straightforward
– They are highly durable against weather conditions and will not rot or decay

Cons:
– The appearance of concrete blocks tends to be uniform, which can make them look somewhat less natural

Brick retaining walls offer a traditional, elegant appeal that beautifully complements brick homes or classic landscape designs. These walls are constructed using standard masonry bricks, often made from red clay or concrete, which are laid in mortar on a solid foundation. A brick retaining wall can seamlessly blend with a house or fence, creating a cohesive look for the property.

Pros:
– They offer a charming, classic appearance.
– They are durable, easy to maintain, and repair.

Cons:
– Their installation is costly and labor-intensive.
– Brick retaining walls are typically only suitable for relatively low heights.
– Proper drainage must be meticulously planned.

Now that you are familiar with the most popular types of retaining walls, it’s essential to select the right one for your yard. The best option depends on your specific needs and conditions. Technical factors, such as slope, soil type, height, and the wall’s load capacity, will help you decide which type to use. Since every yard is different, a professional assessment from experts like S&S Brick Paving can ensure your design is safe, complies with local codes, and lasts a long time.

You should also consider non-technical factors, such as your budget, the wall’s expected lifespan, and the style you prefer. Balancing cost and appearance will help you find a wall that looks good and is a good deal, whether you prefer rustic stone, classic brick, or modern concrete.

To help you, we have created a table that compares all the non-technical factors for each wall type, along with the height information.