How far does a toilet flange need to come from the rough wall "no sheet rock just studs" to make it work out?

We have a cast iron flange and the bolt holes are not useable can we cut off the top and add a new plastic flange

Hello, I realized as I was installing the subfloor in my new bathroom that I had cut off the pvc to short. It is slightly lower that the subfloor. Is there a longer flange which will solve this problem or should I remove the floor add a coupling and more pvc to raise the height? Thanks, m2

Hi, we are completely remodeling our bathroom and are almost to the steps of installing the new toilet. When we test fit it to make sure there would be enough space between it and the vanity, the toilet rocked pretty badly. We did not have a wax ring underneath when we test fit it, but upon...

My 90 year old house has only a lead pipe coming about an inch out of the floor where the toilet was sitting, it is 4" diameter and it looks like the wax ring was placed right onto that without a flange. If I find a flange that fits, no luck so far, how do I attach it to the floor? Please explain...