cast iron tub install

Discussion in 'Shower & Bathtub Forum & Blog' started by SB, Jun 29, 2005.

  1. SB

    SB New Member

    Joined:
    Jun 29, 2005
    I am going to be installing a six foot tea fof two Kohler in a upstairs bath remodel. What is the proper way to support it? I,m concerned about the weight. I figure that the tub when full will weigh 600 to 700 lbs. If possible I would like to spread this weight over as many rafters as possible. My subfloor is three quarter t+g over 2 by 10,s. This is going to be an undermount install with the surround extending twelve inches at the drain end and twenty four inches at the other end. Any thoughts? Thanks, Steve
     
  2. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    tub

    It is already going to span as many joists as possible, unless it is parallel to the joists. The size of the joists is not as important as what their span is. In most cases the distributed weight of the tub will not cause a structural problem.
     
  3. Sponsor

    Sponsor Paid Advertisement

     
  4. SB

    SB New Member

    Joined:
    Jun 29, 2005
    Thanks for the reply hj. Should I just shim the feet to level the tub, or should I set it in some mortar? Thanks, Steve
     
Similar Threads: cast iron
Forum Title Date
Shower & Bathtub Forum & Blog A WTF plastic fitting on old cast iron. Tub drain Wednesday at 5:17 PM
Shower & Bathtub Forum & Blog Keep or replace porcelain cast iron alcove tub? Jan 12, 2015
Shower & Bathtub Forum & Blog removing overflow on cast iron tub obstructed by tabs Sep 11, 2014
Shower & Bathtub Forum & Blog Crack in cast iron bath tub Aug 4, 2014
Shower & Bathtub Forum & Blog Enamel quality on new vs old cast iron bathtubs Aug 2, 2014

Share This Page