Certain embodiments provide a method of installing a floor drain/cleanout. The method generally includes positioning a drain/cleanout body comprising a first opening for receiving a finish drain/cleanout, disposing, on the drain/cleanout body, a cover base of a drain/cleanout cover assembly comprising a second opening for receiving the finish drain/cleanout, threading the finish drain/cleanout through the first opening and the second opening to retain the cover base on the drain/cleanout body, engaging an upper portion of the drain/cleanout cover assembly with the cover base of the drain/cleanout cover assembly, wherein engaging the upper portion with the cover base defines an enclosed void space above the finish drain/cleanout, installing a flooring material around at least the upper portion; removing the upper portion of the drain/cleanout cover assembly from the cover base of the drain/cleanout cover assembly to expose the void space, and positioning the finish drain/cleanout at a desired height.