Toilets, Sinks, Showers, Tubs and Disposals - higher floor

hello all,
I'm in the middle of renovating my bathroom. I'm installing tile floors, and I had to tear up the entire floor down to the subfloor because of some moisture issues.

So, I'm putting down 3/4" plywood, then 1/2" cement tile backer. This means the floor surface will be higher than before. Is there a piece of pipe that I can get to extend the waste pipe to where I need it to be??

Thanks a lot in advance!

There are flange extenders (spacers) made just for what you want to do. They are about 3/8" thick and made of plastic.

Any decent hardware store or big box store (home depot/lowe's) will have them in the plumbing department. Follow directions as you can add several together for the proper height.

Good luck...

Great, thanks so much for the response.

Here is a follow-up question for you. I was expecting the existing flange would just pop off the waste pipe, but it appears that it is attached to a rounded piece of pipe, and that is fastened to the waste pipe. It is boxed in red in the photo below:
http://brianhava.brinkster.net/home/toiletflange.jpg

So, do i need to remove the entire piece, and get a new one, then add the extender to that?

This sounds a little more involved, no?

Thanks again.

The flange is glued to a street elbow. You cannot cut that off, because there will not be enough elbow left to glue to. You cannot cut the elbow off the pipe, because the new elbow would be shifted about 3/4" horizontally. Best bet is to use flange extension spacers.

You do also have another problem here. How are you going to get the new plywood UNDER the flange? Do you have access to this from below so you could install the plywood , then completely rebuild the elbow/flange?

Hmm... that's a great point.

The toilet sits above a 3' by 3' open area inside the wall on the first floor. My only access is through a 1' by '1 hole in the wall (used to be a pass through a built-in shelving unit), so it would be tough to get in there without taking out some wall on the first floor, which I could do.

actually, the room in te 1st floor has some wood paneling that I can take off pretty easily to get access to underneath the toilet.

so, if i can get in there, am i taking off the entire elbow and replacing it with a new one and a new flange?

From your photo it looks pretty easy to cut the pipe at the short piece of straight pipe and using a union rebuild with new elbow and pipe reinstall the flooring and cut the pipe off and glue on new flange. It looks like you may need to use another "street-90" or a regular 90 and use an inside mount flange. Pick up both types and test fit to see which works out for you. Just take GOOD measurements before you cut the old pipe! :) That way you don't have to take out anything to work below the floor.

that's pretty much what I ended up doing, using a street 90. i did, however get lucky on the measurement of where i cut the straight pipe. :o
thanks for the reply.