Standard SFX Power Supply shroud based off of Intel Desktop Platform Form Factors Power Supply Design Guide 13-7. Outside dimensions are from 13-6, basically a 2mm border, should match a SFX PSU. Model is 2mm Thick using SketchUp2018.
https://www.intel.com/content/www/us/en/technology-provider/power-supply-design-guide.html
https://www.intel.com/content/www/us/en/technology-provider/power-supply-design-guide.html