Before revision: A cross section view of a rubble trench foundation A rubble trench foundation The rubble trench foundation, a construction approach popularized by architect Frank Lloyd Wright, is a type of foundation that uses loose stone or rubble to minimize the use of concrete and improve drainage.
After revision: A cross section view of an ancient rubble trench foundation A rubble trench foundation The rubble trench foundation, a construction approach popularized by architect Frank Lloyd Wright, is a type of foundation that uses loose stone or rubble to minimize the use of concrete and improve drainage.