1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Bathroom - Wet Room / Walk-in Shower Queries

Discussion in 'Plumbing and Central Heating' started by gwernybwch, 4 Jun 2015.

  1. gwernybwch

    gwernybwch

    Joined:
    2 Oct 2011
    Messages:
    62
    Thanks Received:
    2
    Location:
    Powys
    Country:
    United Kingdom
    Hi,

    I’m in the process of redesigning my bathroom and have a few queries to help me finalise my plans. For the shower, I want it to be a wet room / walk-in shower style where the floor of the shower is level with the floor of the rest of the bathroom.

    The bathroom is an upstairs bathroom built on a circa. 1970 extension.

    The joists below the bathroom are 7” / 170mm deep. Is this deep enough for the gully / traps and for the flow pipework?

    I’m planning to have the pipework (but not the actual mixer unit) for the mains fed shower to be boxed in. On average what thickness would the enclosure take up?

    Thanks in advance for any replies.
     
  2. polesapart

    polesapart

    Joined:
    27 May 2011
    Messages:
    969
    Thanks Received:
    193
    Country:
    United Kingdom
    "The joists below the bathroom are 7” / 170mm deep. Is this deep enough for the gully / traps and for the flow pipework?"

    The trap can be accommodated, but forget cutting those joists for a waste pipe.

    Think in terms of cutting a hatch in the ceiling below fer access, and then running the waste below ceiling level to the soil stack.

    Unless you can plan a waste run that traverses no joists.

    BTW How are you planning achieve a slope in the floor to the gully/trap if you start at landing floor height at threshhold, if that's your intention ?


    [/b]
     
    • Thanks Thanks x 1
  3. Sponsored Links
  4. gwernybwch

    gwernybwch

    Joined:
    2 Oct 2011
    Messages:
    62
    Thanks Received:
    2
    Location:
    Powys
    Country:
    United Kingdom
    Thanks for the reply.

    From what I'm reading is 7" isn't really enough to space for the trap and the slope in the outlet pipe, therefore I will either need to raise the floor or lower the ceiling.

    What is the minumum that is really needed 8* or more?

    I notice that the outlet pipe (around 1" wide) runs through the joists in places. Is this not permitted?
     
  5. muggles

    muggles

    Joined:
    28 Oct 2005
    Messages:
    11,065
    Thanks Received:
    2,195
    Location:
    Oxfordshire
    Country:
    United Kingdom
    It should be 1.5" diameter and should not be notched through joists. The maximum notch depth in a wooden joist, according to Building Regulations, is 10% of the depth of the joist. In the case of a 7" joist, that means you can take out 0.7" or 18mm. If you can get it to run parallel to the joists that will be acceptable
     
    • Thanks Thanks x 1
  6. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
  7. Sponsored Links
Loading...

Share This Page