I have been asked assist with the design of an enclosure. I have done a fairly extensive search but found no suitable guide books. The enclosure I had in mind was going to be sheet metal and need to be about 500mm^3. This is not an electrical enclosure (lots of books). It will need to be able to be hung from a wall or floor standing, and will need to support a load of about 40kg. I was hoping to find a book that covered items such as legislations (such as I know that you need to be careful when selecting a hole size in case somebody traps a finger). Pros and cons of different materials, different types of access (door or lift off panel etc), examples of lockable enclosures, maybe some guidance on how to make it a bit aesthetically pleasing, maybe some guidance on what fixings should be used (how many m10 screws are needed to stop it falling off the wall). Anybody got any suggestions for a book?