Replacing old toilet - rough in location?

Discussion in 'Toilet Forum discussions' started by reh577, Oct 17, 2011.

  1. reh577

    reh577 New Member

    Oct 17, 2011
    Bay Area
    We'd like to replace an old toilet with a Toto Eco Promenade CST423EF(G). Measurement from the wall to the closest set of bolts is 11", but the bulge in the toilet profile (rough out location??) is further forward. Would the Promenade fit in this space?

    Attached Files:

  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    I don't know enough about that toilet to tell you which is the set of bolts that actually go on the'd have to remove it to see. 11" would not be enough for a Promenade, but if the forward ones are the ones attached to the flange, it looks like it may be a 14" rough-in. I think the Promenade is one of those that uses the Unifit adapter, and if so, and it's 14", you'd need to also buy the 14" Unifit adapter otherwise, the toilet would sit out away from the wall (which won't hurt the toilet, but you may not like it!).
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  4. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Aug 9, 2009
    The rear bolts go to the closet flange. The front bolts are closet screws that are fastened to the floor.

  5. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington
    You measure from the wall, not the floor mold. So you may have a little more then 11" if you are measuring low.

    The drain is centered between the back set of bolts.

    The Promenade needs 11-1/4"
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