Boulder retaining walls are a popular choice for landscaping in the mountains of North Carolina. These walls are made from large, natural boulders that are stacked on top of one another to create a sturdy barrier. They are often used to hold back soil and rock on a slope, or to create a terraced effect in a garden.
The cost of boulders for a retaining wall can vary depending on the size and type of boulder used. Generally, larger boulders will be more expensive than smaller ones. The color and style of the boulders can also affect the cost. For example, unique or rare colored boulders may be more expensive than common colors.
There are many different colors and styles of boulders available for use in retaining walls. Some popular choices include grey and tan granite, as well as red and brown sandstone. These boulders can be found in a variety of shapes and sizes, from small, smooth pebbles to large, irregularly shaped rocks.
The construction technique for installing a boulder retaining wall is relatively simple. First, the area where the wall will be built is excavated to the desired depth. Next, a trench is dug and lined with a layer of crushed stone. The boulders are then placed in the trench, with the largest and heaviest boulders at the bottom of the wall. The boulders are stacked on top of one another, with each boulder being placed so that it overlaps the one below it. This creates a interlocking structure that is able to withstand the weight of the soil and rock behind it.
Once the wall is built, the area behind it is filled with soil and landscaped as desired. This could include planting grass, flowers, or shrubs, or even installing a water feature. The wall can also be painted or stained to match the surrounding landscape.
In summary, boulder retaining walls are a popular choice for landscaping in the mountains of North Carolina. The cost of boulders can vary depending on the size, color, and style of the boulders used. There are many different colors and styles of boulders available, including grey and tan granite, as well as red and brown sandstone. The construction technique for installing a boulder retaining wall involves excavating the area, digging a trench, lining it with crushed stone, and stacking the boulders on top of one another to create a interlocking structure. Once the wall is built, the area behind it can be landscaped as desired.