Lean-to
A lean-to is a type of simple structure originally added to an existing building with the rafters “leaning” against another wall. Free-standing lean-to structures are generally used as shelters. A lean-to addition is a shed with a sloping roof and three walls that abuts the wall of another structure. This form of lean-to is generally provisional; it is an appendix to an existing building constructed to fulfill a new need.
