The outside measurement is 18 5/8’’ wide x 9 1/8’’ tall x 9 3/4’’ deep . The inside measurement is 8 5/8’’ tall x 17 1/8’’ wide . Removable front panel
From the inside of the front panel to the back of the cabinet it measures 8 1/2’’
Face plate 17-1/16 x 2’’ x approximately 1/8’’ thick. This is what you will attach to the front of your chassis after you have done all the drilling