Installing Mortared Shower Pan

Discussion in 'Shower & Bathtub Forum & Blog' started by kaguilar, Jul 4, 2007.

  1. kaguilar

    kaguilar New Member

    Jul 4, 2007
    I've recently decided to update small bathroom in my house. So, I've demolished the mortared shower and a floor pan (original floor pan not mortared; however walls were mortared). I am going to follow the steps from a website I found to install a mortared shower pan.

    My water supply lines run up from the basement in between the studs of my shower. So, this poses a challenge to installing the 2X10 blocking boards. Is there an easy way to do this without moving the supply lines? I can move the supply lines, but I was wondering is there was an easier way. Also, I think the only way to install the blocking boards is to toenail the blocking board since the studs are already installed. Any other suggestions?

    Also, is it required (construction codes...?) to use pressure treated lumber in a shower? I don't think the lumber in the shower currently is so I would have to tear out the exist studs and replace with new.

    Pictures attached for your viewing pleasure. Thanks for any suggestions/recommendations.
  2. geniescience

    geniescience Homeowner

    Nov 27, 2005
    humid summers hot, humid winters cold
    the ontariotile web site is a good reference.

    for blocking, can you use 3/4" plywood instead of 2" wood? is it a big area that you want to block?

    never use pressure treated wood in a shower.

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  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    I've not visited that website, so can't comment on the accuracy or code compliance of their instructions. I can vouch for You may want to check that site out and compare - their instructions abide by the Tile Council of America (TCA) which is the basis for the specs for most codes in the USA related to tile and showers. In addition to the blocking, you often want to notch the studs on the bottom part to allow for the thickness of the folds in the liner (assuming you do that type of pan construction).
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