# Does detail router support spacing between different cut layers?

Tool: Detailed Routing

Subcategory: Tool capability

## Conversation

### davidcarails
I have seen an example of a via/cut spacing rule between different layers.
For example : v4 space v5  >= 38
Can/does the detailed router support this?

### maliberty
Its helpful to ask about a specific LEF rule but yes it does support cut spacing between layers.

### maliberty
![image](https://user-images.githubusercontent.com/761514/169117659-453ea3a8-10cb-4794-bb41-16558182e3f8.png)