The Motherboard dimensions of a Commodore Amiga 1200 are 390 mm x 191 mm x 29 mm.
If you are looking to mount your Amiga 1200 motherboard in a different case such as a PC case, you will need to make sure it will fit before selecting what case will be best.
Insure you have enough depth for a minimum of 29mm or more depending if you have a flash card mounted on the board.
![Amiga 1200 Motherboard Dimensions](https://www.retrotechlab.com/wp-content/uploads/2020/12/IMG_20200311_131042-1024x768-1.webp)