(206) 949-5683, Top Rated Plumber, Seattle
Page 1 of 2 12 LastLast
Results 1 to 15 of 20

Thread: Wall Support for Pedestal Sink

  1. #1

    Default Wall Support for Pedestal Sink

    I'm in process of modeling our 1/2 bath and was planning on installing a pedestal sink.

    I know I need to install a wall support between the studs -- but, I have a cold air return that runs right behind the wall where the sink will be installed -- and the duct work is probably pretty close if not flush to the back side of the drywall.

    Any ideas?? Thanks.

    Rick

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,390

    Default

    Put in a vanity...you might be able to do a metal plate then have holes drilled and tapped. For attaching to the studs, you'd want the holes either countersunk so you could use large flathead wood screws, or counterbored so you could use lag bolts. If you got 1/2" thick plate, it would be the same thickness as the drywall, and if the sink was wide enough, you may hide it entirely. On the machine screws holding the sink up, I'd want to use some thread locking compound. This might be overkill, but should work.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3

    Default

    Thank Jim for the advice.

    I agree -- a vanity would be much simplier-- but I do like the idea of using a metal plate. Aesthetically -- I don't know how it would look.

    I could just go ahead and remove a section of drywall and see what's behind the wall -- no big deal -- I guess. I prefer not to.

  4. #4

    Default

    Another way around this is to install smaller ducting. Not as deep into the stud. I believe they have 1 1/2 deep ducts. You might need to rip down the 2x12 that goes in the wall as a support to thin it out as well. You could end up a little proud. In that event you could simply cover that area with 1/4" drywall. That will buy you another quarter inch.

    Tom

  5. #5

    Default

    Another way around this is to install smaller ducting. Not as deep into the stud. I believe they have 1 1/2 deep ducts. You might need to rip down the 2x12 that goes in the wall as a support to thin it out as well. You could end up a little proud. In that event you could simply cover that area with 1/4" drywall. That will buy you another quarter inch.
    Good idea too.

    I'll let you know how it turns out.

    Thanks again guys for the advice.

  6. #6
    Aspiring Old Fart, EE, computer & networking geek Mikey's Avatar
    Join Date
    Nov 2005
    Location
    Central Florida
    Posts
    2,685

    Default

    Check out this thread, and especially the result at #18.
    http://www.terrylove.com/forums/showthread.php?t=21845

  7. #7
    DIY Member B2CHR's Avatar
    Join Date
    Jul 2008
    Location
    Central NC
    Posts
    35

    Default

    Question, with the duct work behind the sink I take it that the drain and water supply is coming up through the floor? There is a thread here about installing a pedestal sink that has the drain coming up through the floor and there was a question about with the drain out in the floor that the sink might not work. If you can replace the section of duct work with some flex and use toggle bolts to hold the sink to the wall that might work.

    Sorry, wrote this before I seen the pre post.

  8. #8

    Default

    The water supply comes up through the floor -- the drain is out from the wall.

    The duct is off center -- just right of the drain.
    Attached Images Attached Images  

  9. #9
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,624

    Default duct

    In that case the duct is not "behind the sink" it is behind one side of the sink and the anchor on the left side will secure it without worrying about one on the right. Reducing the duct size is the worst idea for solving the problem. If it were really a problem, I would screw the sink to the duct.

  10. #10
    Master Plumber master plumber mark's Avatar
    Join Date
    Feb 2005
    Location
    indianapolis indiana - land of the free, home of the brave....
    Posts
    4,243
    Blog Entries
    1

    Talking you have other troubles to contend with

    Installing a pedistle is usually a pain in
    the neck no matter how it goes down...


    looking at your pic, I would be willing to bet that
    you will need to move the waterlines closer into the
    back wall to make room for the stand...

    the drain line might be off a tad bit off center too...

    that is always fun trying to stand on your head and
    install the trap behind the pedistle....


    the backing in the wall is probably the
    least of your troubles...
    which you really dont have to have


    for your backing you could just install some plastic
    anchors and mount and glue the hanger to the drywall if necessry...

    with a pedistle sink ,
    the weight is held up by the stand under-neath it....

    you could actually just put the hanger on the wall
    with plasit drywall anchors,
    and glue the pedistle in place with DAP and get by fine

    it wont go anywhere unless someone decides to
    make love on it...


    we run into them all the time that were glued to
    the wall with silicone,,,,

    of course they dont come off too easy years from now

    but that is someone elses problem




    Looking at what you got , I too suggest a vanity

  11. #11

    Default

    Reducing the duct size is the worst idea for solving the problem. If it were really a problem, I would screw the sink to the duct.
    I agree -- I really don't want to go there.

    looking at your pic, I would be willing to bet that
    you will need to move the waterlines closer into the
    back wall to make room for the stand...
    Yep -- I've been measuring some different pedestal sinks and it looks like I will have to move the water lines closer to the wall.

    the drain line might be off a tad bit off center too...
    I'd like to center the pedestal -- but since the drain is off center -- will this be a problem??

    it wont go anywhere unless someone decides to
    make love on it...
    That would be too uncomfortable..

  12. #12
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,624

    Default drain

    The drain being off center becomes a problem if there is not enough room in the slot of the pedestal to rotate it into position.

  13. #13

    Default

    The drain being off center becomes a problem if there is not enough room in the slot of the pedestal to rotate it into position
    Looks like the drain is off center by 1-1/2".

    I'll measure the slots of the pedestals -- to see which one would work the best. I guess the wider the better.

  14. #14

    Default

    Quote Originally Posted by hj View Post
    I would screw the sink to the duct.
    HJ,

    How would you screw a heavy pedestal sink into a duct? It requires a support stud in the wall which is usually a 2x12 laid on it's face.

    Tom

  15. #15
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,624

    Default screw

    The pedestal supports the sink. The screw only holds it against the wall. A piece of sheet metal, the duct, behind the wall with a large sheet metal screw into it will give more than adequate support. A pedestal sink glued to the wallwith silicone, (no screws), will stay there forever anyway.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •