Access Door Flush Mount Insulated Material 0.064 in Aluminum Access Door Installation Wall or Ceiling Door Height 24 in Door Width 24 in Rough Opening Height 24 3/8 in Rough Opening Width 24 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 Corrosion Resistant All Aluminum Construction