How to restrict number of nodes per content type? How can we restrict number of nodes allowed per content type. Let suppose if we allow 5 nodes then no one including the admin user can add the 6th node of that content type.
Have you tried the Node Limit module?


  The Node Limit module allows administrators to restrict the number of nodes of a specific type that roles or users may create. For example, if a site has an "Advertiser" role that can create "advertisement" nodes, then the node limit administrator can restrict all users in that role to a specific number of nodes. He may also restrict users on a per-user basis.


You could create a role just for node limit and assign ALL users (including the admin) to that role.