Cob 101 / What is cob?


Cob is an earthen building material made from the soil on which you walk. Not the garden soil, full of life and organics, that feeds your veggie garden but the sub-soil below that which, depending on where you live, may contain variable amounts of cob’s secret ingredient: clay. In its raw form, cob is similar to plasticine in consistency and is sculpted free-hand to form self supporting, strong, durable, and wholly renewable structures from small ovens, to entire multi-storey buildings.