The process is generally the same but the flange is secured down before the floor is finished.
Installing a toilet flange on concrete floor.
Closet flange installation 2 flush with the floor.
I also will be using a self leveling compound to even out the floor before tiling.
This is basically a durable plastic ring which fits over the drainage pipe to create a place where the toilet can gain solid purchase.
I am considering cutting old bolts and installing flange.
Use tapcon anchors or a similar type of masonry concrete screws to fasten the toilet flange to the concrete slab.
With the drainage pipe ready the floor flange must be installed.
With the toilet flange in place you are ready to install the toilet with a new wax ring.
If using a plastic flange ring be careful not to crack the ring by screwing the anchors in too far.
Fit the flange over the pipe to place it flat against the concrete floor.
I am replacing my tile floor and toilet.
Use a pencil or grease pen to mark the drill holes around its.
Screw the toilet flange onto the concrete.
When i got the old tile out i noticed that the floor bolts were coming out of the concrete and there was no flange.
Though above floor installation is considered the right way to fit a flange some swear by attaching it level with the floor.