Hello, I am installiing a new toilet and was wondering when I go to mount the toilet flange should I screw it to the sub flooring or cut out a spacer plate to raise it up flush to the tile? The tile isn't down yet. I wanted to see what should be done about the flange first.. Thanks for the help..

Open the link below the experts have stated very well it may help you, Thanks.

John

https://www.askmehelpdesk.com/plumbing/installing-toilet-flange-221912.html