Retaining Wall Block
$0.25
Estimated value as of 2026 · Average derived from material costs in [4][6][8] (e.g., $15-35/sq ft for interlocking blocks, ~0.25 sq ft per block)
Retaining wall blocks are interlocking concrete or masonry units used in landscaping to build low retaining walls for soil retention and aesthetic enhancement.
Fun fact Interlocking concrete blocks are popular for DIY projects due to their ease of installation without mortar or special tools.[4]
landscapingretaining-wallconcrete-blockoutdoordiy
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