Interlocking Concrete Retaining Wall blocks - Free (san mateo)

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I have 40 interlocking, trough-style interlocking concrete retaining wall blocks. These feature a hollow, scoop-like design perfect for building a "living wall"—just stack them, fill the open centers with soil, and plant succulents, trailing vines, or flowers directly into the wall structure. See sample image below.

Great for garden borders, terraced landscaping, or DIY retaining walls.

Solid, heavy concrete construction. Used but in good condition with normal outdoor wear.

Free for anyone to pick up. Must haul and load yourself. Located in San Mateo. Message if interested.

post id: 7974692523

posted: 2026-09-28 20:26

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Interlocking Concrete Retaining Wall blocks - Free - farm & garden -...

I have 40 interlocking, trough-style interlocking concrete retaining wall blocks. These feature a hollow, scoop-like design perfect for building a "living wall"—just stack them, fill the open...