in the skin 36 about the interior perimeter defined by the blocks 28 34 the thus resulting opening exposes the cavity defined by the frame as best shown in fig1 the cut out portion 42 of the skin 36 is then removed for further use as explained because cut out portion 42 is subsequently used to manufacture door d then costs are further reduced once the cut out portion 42 of the skin 36 is removed then we apply protective elements 38 and 40 to the inner surface of the door skin 12 the protective elements 38 and 40 are disposed in three parallel rows with the protective elements 38 and 40 adhesively secured to the flush portions 16 each of the protective elements 38 and 40 preferably is a styrofoam pad of approximately one half inch thickness the styrofoam pads 38 and 40 are secured to the skin 12 with a silicone glue or other adhesive the pads 38 and 40 each have a forward surface disposed within the cavity with the surfaces lying on a common plane the cut out portion 42 of the door skin 12 is then positioned within the cavity in overlying juxtaposition to the pads 38 and 40 the cut out portion 42 provides a support the cut out portion 42 may also be adhesively secured to the pads 38 and 40 if desired safety backed glass mirror 10 is then positioned within the cavity in overlying relation to the support provided by cut portion 42 the mirror 10 and cut.