Adjustable/Magnetic Access Door, Flush Mount, Uninsulated, Material 20 ga. Cold Rolled Steel Door; 24 ga. Galvanized Steel Frame with Polymer Corners, Access Door Installation Wall or Ceiling, Door Height 14 In. to 15-1/2 In., Door Width 14 In. to 15-1/2 In., Rough Opening Height 14 In. to 15-1/2 In., Rough Opening Width 14 In. to 15-1/2 In., Closure Type Screwdriver Operated Cam Latch and (4) Magnets, Hinge Type None (Retaining Cables), Mounting Hole Size Bendable Tabs and Holes 3/16''