http://tinyurl.com/qeffqnv

12" x 12" Insulated Fire-Rated Access Panel - Babcock Davis

Rough Opening Size: 30 ⅜" wide x 30 ⅜" high

Material: 16 gauge cold rolled steel door, 18 gauge mounting frame, Finish: 5 stage iron phosphate preparation with prime coat of White alkyd baked-on enamel

Lock / latch: Stainless Steel Screwdriver Operated Cam Latch

Hinge: Continuous, Concealed

Flange: One-piece outer flange welded to mounting frame