Abstract: Disposable envelopes are providing for protecting interior doors during painting, construction or decorating. A plurality of disposable envelope are formed as rectangular structures which serve as sheaths to protect doors of a building during painting, spackling or other construction, repair of decorating projects. The envelopes are formed as large plastic paper sheaths and are pulled onto the edge of a door opposite the door edge hinged to the frame. The envelopes protect the door from paint, spackle and other material used in construction or decorating. Once painting or decorating is complete, the envelopes are removed from the doorsd and discarded.