Abstract: A paint masking tool and kit comprising the same comprises a floor-masking surface, a floor-engaging surface, and an inner molding-engaging edge. The inner molding-engaging edge comprises a transverse, negatively-contoured molding profile complementarily alignable adjacent a transverse positively-contoured molding profile of doorway molding. When the inner molding-engaging edge is complementarily aligned adjacent the molding element, and the floor-engaging surface engages a floor surface, the floor-masking surface functions to mask the floor surface adjacent the doorway periphery from material such as paint or stain applied to molding elements laterally donning a doorway.