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Finding Good Clay
Test your soil: the “jar test” reveals the perfect sand‑to‑clay ratio for structural cob.
Shelter
Building with Cob: The Ultimate Guide
Mix clay, sand, and straw to sculpt a durable, beautiful home.
Mix clay, sand, and straw to sculpt a durable, beautiful home.
Test your soil: the “jar test” reveals the perfect sand‑to‑clay ratio for structural cob.