Access Door, Flush Mount, Insulated, Material 0.064 in Aluminum, Access Door Installation Wall or Ceiling, Door Height 16 in, Door Width 16 in, Rough Opening Height 16 3/8 in, Rough Opening Width 16 3/8 in, Closure Type Cylinder Lock and Key, Hinge Type Piano, Mounting Hole Size 8 Holes Diameter 1/4 in, Finish White Powder Coated Primer, Features All Aluminum Construction