What is Cob

Cob bricks laying in the sun

Cob is a form of natural earthen building using clay sand and straw. Materials are traditionally mixed together by foot and applied directly to the structure and allowed to dry in place. The final product is rock hard, breathable, natural, and beautiful. Cob will not catch on fire and bugs will not eat it. Building with earth is an ancient skill that has been passed down and there are cob houses around the world that have been standing for centuries.