Any suggestions for bracing or supporting a toilet?

Any suggestions for bracing or supporting a toilet? 300lb+ relative has moved in and the toilet is already starting to rock a bit. Just replaced the wax ring a few months ago, and not looking forward to doing it over.

  12 answers
  • Thisbe De Mona Thisbe De Mona on Oct 29, 2017
    The subflooring is probably deteriorating (this likely from wet floor rotting the wood before your relative moved in. The extra weight just stressed the rotted wood more. Take off the toilet, tile or whatever around the toilet drain and take up that section of rotted wood, replace with plywood subflooring. Make sure the 2x6 supports have not begun to rot. If you are not carpenter handy, you'll need someone who is to do these things. Just bracing the toilet instead of fixing the flooring is not really an option, it will just allow more rot.
  • Rodena Josey Rodena Josey on Oct 29, 2017
    We had a old home, needed a new toilet. Got one it never seated correctly, and rocked. So my husband took a exercise mat ( the kind that snaps together) placed toilet on it traced and cut out a"seal". He put the toilet back on with the seal ( had to get a new wax ring) then he used a tube of Kwik caulking to run a bead around bottom so black ring didn't show. No more rocking toilet.
    • See 2 previous
    • Rodena Josey Rodena Josey on Oct 29, 2017
      Slab, had tiled when had old toilet. Didn't want to tear out and redo.
  • William William on Oct 29, 2017
    I agree with Thisbe De Mona. It's possible that the subfloor is damaged and needs to be replaced. This would cause the floor to be lower than the toilet flange and suspend the toilet off the floor. The toilet drain flange should be level or slightly below the finished floor. This will allow the wax ring to seal properly and the toilet to sit on the floor and not on the flange. The toilet bolts just hold the toilet in place to prevent movement and should not be over tightened.
  • Cindy Hagemann Cindy Hagemann on Oct 29, 2017
    Check the subflooring and then reinforce as needed, buy a new toilet that is taller, add hand rails to the sides for support of the heavy person too - it will help take some of the stress off from the toilet.
  • Kim Kim on Oct 29, 2017
    Buy toilet shims and shim the toilet. They are made of plastic, not wood. If that stops the problem, (YAY!!!!!) but if not,
    Thisbe De Mona is right, you have a sub floor or maybe even joist problem. I would inspect from underneath before tearing out so that you know the full scope of the job.
    Being realistic, repairing water damaged floor joists is a big undertaking, it’s probably something you should hire out so that the toilet is up and working again in a couple of days instead of weeks.
    Hope that helps
  • Ebbjdl Ebbjdl on Oct 29, 2017
    If your doing the cooking, maybe the'll change their eating habits and start to loose weight. Their just plopping down on it, instead. of sitting down. I don't know what to say about fixing the toilet. Call Homedepot or Lowe's plumbing department and see it they have something that could help you or go there.

  • June June on Oct 29, 2017
    Buy a standing open seat (strong) that can hover over a toilet
  • William William on Oct 29, 2017
    On a slab, Huh! I would try something like Rodena Josey or Dawn Blalock did to raise the toilet off the flange. You can also use a floor leveling cement to raise the floor even or slightly above the flange so the toilet sits on it and not the flange. I have used the plastic toilet shims and they tend to loosen or slip out.
  • B. Enne B. Enne on Oct 29, 2017
    If none of the fixes work, buy an over-the-toilet commode rated for the person's weight.
  • Thisbe De Mona Thisbe De Mona on Oct 29, 2017
    In that case, remove toilet and check state of flooring underneath. If no tile is crumbling, put the toilet back and balance it with a shim or two. Probably just broken tile which you can fill in with grout & small piece of filler tile. Good luck!
  • Dawnn Blalock Dawnn Blalock on Oct 30, 2017
    Thanks to everyone for your suggestions!