Anyone with a Fractal Define S? (need a measurement)

If anyone has a Fractal Design Define S, is there any way I can get the measurement on the top side of the case, with the panels removed? (the inset area on the top) Both length and width please.

Thanks in advance!!

With the top 3 panels removed, measuring from where the bottom of the bevel meets the grillwork, the inset area measures 7 1/4" by 16 1/2". The full top measurement from end to end and side to side is 20 1/2" x 9 1/8".