220 x 116 x 9.917 mm [Outer Dims] 
194.60 x 163.40 mm [Plexiglass Insert Dimension]
182.6 x 152.6 mm [Innermost Dim]
212.80 x 173.80 mm [Cutout Required Dimension]
1.50 mm [Bezel Thickness]
8.42 mm [Thickness Minus Bezel]

No dimensions include clearance values of any sort, add tolerance to dimensions as you need for fitment of your material.

Made for https://www.reddit.com/r/3Drequests/comments/10cu3al/stl_modification_help_with_extension_of_sides_for/