https://developer.roblox.com/en-us/api-reference/function/Model/GetBoundingBox

This is useful as a system I have relies on the bounding boxes of possible zones that it can allocate to create a grid with cells of the biggest size.

This can be done at runtime, but this would require the server to then replicate this information to the client (which also needs to know the cell size, for different purposes), making it an asynchronous operation, which is not ideal. The better solution is to pre-compute this and store that information in a ModuleScript. I can do this with a plugin, but it is preferable that remodel does this to limit manual work.