Making a room without seeing through blender to unreal

I’m making a room in blender out of a cube. I’m having problems making a interior for the room for separate colors and etc. How do I have a interior for the room for walls so they can’t see through. if I flip normal you may see through other side that’s not what I want.

Make material, apply it to model and enable double sided :slight_smile:
Check if that’s what you want :slight_smile: