To secure the door to the opening, we designed custom 1/8” steel plates which we manufactured from stamped, high-strength galvanized steel. Once stamped, drilled and tapped, we applied a cold galvanizing spray to prevent future corrosion. A total of 8 plates were anchored into the surrounding concrete to support this large door. Additionally, Stainless Steel fasters and bolts insured that the door frame was rigid and secure for years of operation. To complement the bronze burnish, we used Bronze DOW 795 caulk to glaze each lite and Black DOW 795 to caulk the edge of the custom plates and in-between the Stainless Steel fasteners and galvanized steel plates to prevent galvanic corrosion.