Boulder walls can be used as retaining walls in Houston landscaping projects where a steep slope is present in the back yard. We see this in many homes that border the city’s bayous. Often, sloped areas in the yard are subject to such erosion that they are practically unusable until a retaining wall is constructed. A wall that is made out of boulders is the least expensive form of retaining wall to build for two reasons. First, the fieldstone boulders that are used in its construction cost much less than quarried, finished stone. They can also be stacked to heights of up to four feet without the additional cost of building a compacted base.
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