A leanto roof is a specific type of roofing structure that is commonly used in architectural design. It is also known by other names such as the shed roof, skillion roof, pent roof, mono-pitch roof, single slope roof, and lean-to roof. These synonyms refer to the same type of roofing structure, which is characterized by a slanted roof that slopes downward towards one side of the building, typically supported by a wall on the other side. The choice of which term to use often depends on the regional preference or the exact architectural design of the building. Regardless of the name, a leanto roof is a functional and aesthetically pleasing option for many construction projects.