Marsh 17x16x10" Stainless Steel Industrial Computer Monitor EnclosureSize (Height x Width x Depth): 17x16x10 Door Type: hinged Mounting Style: wall Back Plate: no Knockout Holes Square (height x width): 10 10 3 4" x7 3 4" Lexan Window Hinged Door With Seal Buckle Closures 10 rectangular access holes: 4 have covers, 6 are open. They are 2 1 2"x 1 1 4" (smooth edges, no sharp spots, holes possibly stamped in by manufacturer.)