Installed new tile floor. Added 1/4" extender to flange to compensate for floor height. Extender makes flange about 1/8" higher than floor. Floor is PERFECTLY level in every direction I put my level. Before installing toilet (still have not done) I placed it over flange to see how things are. Toilet is NOT level but floor is! I can level up by putting shims in back? OR will this actually level out better when I put in wax ring and bolt it down until it is level. Any ideas/tips for using shims? thanks

Some molds of the toilets are imperfect. They make plastic and rubber shims that you can put under the area that corrects the rocking. I have seen people use metal washers, and even spare change.

Tighten down the toilet like you would normally and see where you need to put the shims.

You mean to say the flange is not level???If so, set the bowl dry to be sure there is no direct contact with the flange and use a thicker wax to make up the low side difference.

Not lever side to side or front to back? If front to back, forget about it, just install the toilet.

i bet the flange is to wide or the toilet isnt centered on it

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I cut shims from my 3/8" pex supply tubes. Seems to work good.

unless its extreme i would just bolt the toilet to the flange and now worry about it being 1/8" off..or whatever it is...yes if its 1/2" off id get a new toilet...i cant imagine its that bad.

ive never put a level on a toilet or even noticed.

i wouldnt shim it level..id replace the toilet before id do that...i think you may be looking too hard for perfection...nothing ceramic is perfect.

whats the toilet brand name? i think i can guess

It is unlevel front to back, not side to side. It is an American Standard.

WHO cares about front to back level? Some toilets are MADE unlevel that way for comfort. In fact, more than one "ancient" toilet had a curve to it like sitting in a saddle.

if installing on a tile floor:

level toilet using 4 - 3/4" wide cardboard shims at the 'corners'

mix plaster and 'caulk' under bowl with putty knife

after 45 minutes (when plaster is set) remove shims and caulk gaps .. voila

perfectly level and 'rock solid' forever

Set the bowl in a 1/2" of color matched grout.It will hold to where ever you desire to set it.

Only problem with a wc not level front to back is the possiblilty of the bemis seat catching your pecker when it falls down.

That has NOTHING to do with the toilet being level. If the seat won't stay up the tank is not plumb, or the seat is too thick, and/or the seat holes are too close to the tank.