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Thread: drain pipe going through floor

  1. #1

    Default drain pipe going through floor

    When you have a drain pipe going through the subfloor, is there some building code rule about the diameter of the hole in the subfloor, how much bigger it should be than the diameter of the drain pipe?
    This is a toilet drain pipe.
    Even if it's not in the building code, perhaps good construction involves a certain spacing between the subfloor and the drain pipe?

  2. #2


    Yeah. There are few guidelines to be followed. Also one need to take care of the leakages and other safety measures for drain pipe..

  3. #3
    Join Date
    Dec 2003
    Welland Ontario


    6 year old thread
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