The Simpson name has been synonymous with fir doors since the beginning. Tight, vertical grain and warm coloring give our douglas fir doors an enduring appeal. SIMPSON 32-in x 80-in Unfinished Solid core 1-panel Right hand Unfinished Fir Wood Flat Jamb Single Prehung Interior Door in Brown | LO999926 Light Brown Bedroom Doors, Wood Polish Shades Doors, Mid Century Door, Craftsman Door, Prehung Interior Doors, Contemporary Door, Victorian Door, Rustic Doors, Bathtub Doors