Boulder Wall

A boulder wall can easily replace steep embankments with a tiered step-down wall, flatten a sloped landscape, and add usable space to your property. Boulder walls easily incorporate steps, spaces for plants, and sitting areas amongst the wall.

Boulder retaining walls are one of the most durable and visually striking solutions for managing slopes, preventing erosion, and creating usable outdoor space on uneven terrain. If your property has a hillside that's washing away, a steep grade that limits your yard's functionality, or an embankment that needs structural reinforcement, Coob's Landscaping builds custom boulder retaining walls for homeowners throughout Chapel Hill, Durham, Carrboro, Cary, and the greater Triangle area.

Unlike manufactured block walls, natural boulder walls use large, locally sourced fieldstone and rock to create a retaining structure that blends with the landscape and ages beautifully over time. Boulders provide massive weight and natural interlocking stability, allowing them to hold back significant soil loads without the mortar, footings, or engineered drainage systems that block walls typically require.

Our boulder wall construction process begins with a careful site assessment. Corby evaluates the slope angle, soil conditions, drainage patterns, and the volume of earth that needs to be retained. We excavate a stable base, set each boulder with precision using a skid steer equipped with grapple attachments, and backfill with drainage stone to prevent hydrostatic pressure buildup behind the wall.

Boulder retaining walls are especially well-suited to the Triangle's Piedmont environment. The clay soils here expand and contract with moisture changes, which can destabilize rigid block walls over time. Natural boulder walls are inherently flexible — they accommodate ground movement without cracking or failing. They also provide excellent erosion control by slowing runoff and creating terraced planting areas behind the wall face.

Coob's Landscaping has built boulder retaining walls across Chapel Hill, Durham, and the surrounding area for more than a decade. Our projects range from small accent walls along garden beds to major retaining structures that reshape entire hillsides. Every wall is built to last and designed to enhance both the function and beauty of your property.