We want to have a plain empty sandbox - one without any configuration metadata or data from Production.
Is it possible to have such a sandbox?
Salesforce Stack Exchange is a question and answer site for Salesforce administrators, implementation experts, developers and anybody in-between. It only takes a minute to sign up.Sign up to join this community
Not easily, no. You would have to create a sandbox and then delete everything. To do this, I would recommend creating a destructive changes ANT script, but be advised not everything can be removed that way.
For more information on the Migration Tool, see the guide.
If you want a sandbox but without the data, objects, classes, workflow etc. from Production then perhaps get a new Developer org. It's not a sandbox, but it won't have anything from Production in it. What is the reason you need this though?