The Adjust-A-Trim isn't the only
adjustable steel door jamb on the market,
but it's the only one that comes
with a prehung door. Most steel
frames have to be assembled on site; if
you wanted a prehung steel door,
you've always had to be satisfied with
a wood frame. But the Adjust-A-Trim
changes all that. The system comes in
two pre-assembled halves. The base
jamb is installed from the inside and
is prehung with a 22- or 24-gauge galvanized
steel, insulated door. The closure
jamb slips in from the outside, its
edge fitting into a channel in the base
jamb that permits 1/2 inch of depth
adjustment. Both jambs are fitted
with nonremovable metal casings.
The Adjust-A-Trim comes