Toilet Sewer Pipe Allowance

Discussion in 'Renovation & Home Improvement' started by Frosty123, 14th Nov, 2017.

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  1. Frosty123

    Frosty123 Well-Known Member

    Joined:
    12th Nov, 2015
    Posts:
    244
    Location:
    VIC
    Hi all,

    I'm currently installing fibre cement sheeting and tiles in a toilet room. A new S Trap toilet is to be installed, and a plumber will be called in the coming weeks to install a new sewer pipe and water supply line.

    The set-out is 140mm, and I understand a 100mm PVC pipe will be installed. How big an opening should I cut out to allow for the pipe/flange? Would it be ok to have a 150mm opening for him?

    Thanks

    Frosty
     
  2. Scott No Mates

    Scott No Mates Well-Known Member

    Joined:
    18th Jun, 2015
    Posts:
    27,252
    Location:
    Sydney or NSW or Australia
    Why make it hard for the plumber? Flooring can go in AFTER sub floor services.