How can make my 3d model solid



I have created a 3d Model in sketchup. I’ve not imported any of the warehouse items yet so its just an empty model with walls, stairs and windows. I’m trying to walkthrough the model but it bypasses the walls and other structures of my 3d model.

Can anyone please help me out here in making my model solid.



In Windows version, you can toggle wall detection with the “Alt” key while walking around.


I am lost trying to relate the walkthrough issue with making it solid. Does this help


“Solid” in the sense of offering resistance to an impinging object.



realised that that perhaps Pranay is referring to panning or orbiting trough the model whereas the walk through tools do respect objects in their paths.