The cob bench at the Campus Center For Appropriate Technology in Arcata, Ca.
Cob is an alternative building material produced by mixing earth, sand, clay, and straw with water.
This creates a finished product similar to stone. Cob is strong enough to create load-bearing walls, flexible enough to create free flowing forms, and forgiving enough to mend mistakes. These benefits of cob allow the creator to hand-sculpt what ever their hearts desire. Cob is an earth friendly alternative building material that reduces the use of wood, steel and toxic building materials. Cobbing surpasses other earth building techniques such as adobe or rammed earth, in both ease of construction and freedom of design.