How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Brian Your Own Question
Brian, Architect
Category: Plumbing
Satisfied Customers: 3123
Experience:  Licensed Architect- 17 years
Type Your Plumbing Question Here...
Brian is online now
A new question is answered every 9 seconds

Good morning: I have cut my cement floor and done my rough

This answer was rated:

Good morning:
I have cut my cement floor and done my rough in's for my washroom.
I need to cement my floor and set my flange. I will install ceramic tile in the washroom.
Should I anchor my flange in after cement has cured and then put an extension flange in after tiling or anchor my flange in on top of the thin set after tiling.

Hi and thanks for using our service! My name is XXXXX XXXXX I will do whatever I possibly can to give you the most accurate answer.

Have the PVC drain pipe stick up where the toilet is located and install the new concrete. Allow the concrete to dry and then cut the drain pipe flush with the concrete. Glue the PVC flange to the drain pipe and secure to the concrete with Tapcons (this will require drilling with a masonry drill.) Install tile floor and cut around the flange. After tile and grout dries, install the wax ring and secure the toilet to the flange.

If you have any further questions, please feel free to let me know...
Please rate my answer if I have completely helped you today, so that I am credited for my time assisting you. Rating my answer does not cost you any more, and only by your rating am I compensated.
Customer: replied 3 years ago.

Thanks Brian.


If I have the flange 3/8(1/2) inch below the ceramic tile after tiling is done, will it be necessary to put a flange adapter on to bring up the top of the flange close to floor level, or will wax seal be sufficient?





Hi Tom, the closet flange is pretty close to the thickness of the tile and thinset, unless you are installing unusually thick tile. But even if you are 3/8 to 1/2 inch below the wax ring will work within that.
Brian and other Plumbing Specialists are ready to help you

Related Plumbing Questions