Old arcade cabinets with rackmount stiles screwed to the inside. Just be aware that fibreboard doesn't compress like plywood or real wood, so screws can tear ou

Old arcade cabinets with rackmount stiles screwed to the inside. Just be aware that fibreboard doesn't compress like plywood or real wood, so screws can tear out if not seated properly. You can also put foam inside to abate the noise of rackmount fans. I have since moved on to a custom built arcade cabinet for my rackmount workstation and UPS.