Graduate Corridor Premier Series Upgrade
Includes a 3" wide 18 gauge full height door stiffener spot welded to the inner door face and MIG welded to the hinge side as well as to the top and bottom door flanges providing a rigid torque-free door. A 1-1/2"
wide stiffener will be furnished for 9" wide Premier Series doors. 18” and 24” wide doors are only available in Premier Series.