supporting pnc parallel to Ijoist

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by zhomes, Nov 21, 2007.

  1. zhomes

    zhomes New Member

    Messages:
    25
    supporting pvc parallel to Ijoist

    normally when I run PVC drains paraellel (in between) two josts I add support by cutting 2"x4" and nailing them between the joists under the pipe.

    This is assuming I am running right down the middle and not up against the joist where I can secure it another way.

    But doing a project now where I have I-joists. I dont like the idea of securing a 2"x4 by screwing throught the thin/webbing area of the Ijoist.

    How do you guys secure if you running right down the middle of two I joists.
    Last edited: Nov 21, 2007
  2. Herk

    Herk Plumber

    Messages:
    547
    Location:
    S.E. Idaho
    I can't think of any reason that you couldn't secure a 2" x 4" with screws shot through the trus-joists. I don't understand why you'd have trouble with that. Alternatively, punch a hole through the joist on each side, high enough to allow for a V-shaped strap which goes through the holes, then screws from the other side. PVC isn't very heavy. Strap is a lot cheaper than 2" x 4"s.
  3. Bob NH

    Bob NH In the Trades

    Messages:
    3,317
    Location:
    New Hampshire
    The web of an I-joist or any beam is the proper place to secure a vertical load. The web of a beam or joist carries most of the vertical load, and the flange carries the bending load.
Similar Threads: supporting parallel
Forum Title Date
Plumbing Forum, Professional & DIY Advice supporting vertical vent pipe Feb 14, 2011
Plumbing Forum, Professional & DIY Advice supporting insulated water piping Oct 6, 2010
Plumbing Forum, Professional & DIY Advice Supporting 45-deg run Jun 10, 2010
Plumbing Forum, Professional & DIY Advice Supporting copper pipe Sep 22, 2009
Plumbing Forum, Professional & DIY Advice Best way to parallel pipe two different sized hot water heaters Jan 26, 2014

Share This Page