Masonite | 32 in. x 80 in. 6-Panel 20-Min Fire Rated Solid-Core Textured Primed Composite Single Prehung Interior Door, Left Handed. Composite wood with classic panel design resists warping, shrinking and cracking. Molded panels provide architectural detailing and elegance. Interior door slab features textured pre-primed finish - perfect for painting and decorating. Supplied pre-assembled in a 4-9/16 in. door frame. Interior door slab is single bored for lockset - not included. Interior slab with solid core and has 20-minute fire rating. For entrance to interior room or closet use not designed for exterior use.