Should toilet flange sit flush on floor?

Question

I'm putting in a new toilet and I'm unsure it the flange should sit flush with the unfinished floor.

Answer 1

Flush w/ any new or excististing flooring then you ll need just 1 wax ring if you put it on  the floor and then add ceramic  the ceramic will be to thick and you ll most likely need 2 rings and  just increasing the possibility for leakage problem  GL

Answer 2

yes, and don't forget the wax seal.

Answer 3

Whenever possible the flange should sit flush with the floor however up to a 1/4" above or below would work ok if you double up on the wax ring.

Answer 4

flush to 1/4 inch up depending on the flange