Restrict folder creation in the documents root folder for a contributor or editor

Hiya and thx for the reply. We already have Multiple sites setup as you suggest. But for some scenarios like this one mentioned , the breaking of inheritance is required. We needed users to start at the same top folder but there is a specific requirement for some users to have different access to different subfolders .I've been putting it off for a while because I knew there are some Overheads regarding maintaining the permissions but once setup correctly it works very similar to a file server. So we've gone for 1 folder with like 10 subfolders rather than 10 document libraries. And we also don't want users creating their own folders at top level and assuming they have managed permissions correctly themselves. This gives us some form of control over the folder structure. Please don't mention what about more power to the users 🙂