Door and Frame are fabricated from 16 gage, galvannealed steel with a prime coat finish. * Frame is one piece construction, 1" wide and provides perfect concealment of the rough wall opening. Wall frame is provided with 1/4" mounting holes for fastening within the furred spaces allowing faster installation and fixing maximum clearance. * Concealed Pivoting Rod Hinge prevents distortion and closes door squarely. Doors 24" or larger are provided with a continuous piano hinge. * Latch is screwdriver operated. * Finish is a prime coat suitable for painting.