Pathline Products Fireplace Doors for Majestic Fireplace Fits Majestic Unit: MBU36,MBU36I,MBUC36,MBUC36I,R36,RC36,36ST,CR36R, MSF36, MST36 Please Do Not Order Unless Your Model Matches One Listed. These doors will not fit unless you have one of the models listed. Sometimes A Tag Containing Model#, Make, Date Of Manufacture Can Sometimes Be Found On Inside Sheet Metal Wall Of Firebox. Inside Frame Measurement Requirement: Width: 36" Height: 21-7/16" to 21-15/16" Upper & Lower Rails Included Available In 2 Finishes (Black or Silver)