2021 Cost of a Retaining Wall - Estimates and Prices Paid
The Building Stone Institute explains how to build a stone retaining wall without mortar and ThisOldHouse.com describes the process for building a stone retaining wall with mortar . Poured concrete costs about $30-$40 or more a square foot (usually with a minimum charge for small jobs), or about $1,500-$2,000 for a wall 30 inches high and 20 ...
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