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

Decking Joists -- 100mm or 150mm ?? & supports

Discussion in 'In the Garden' started by aimhigh, 14 Jun 2007.

  1. aimhigh

    aimhigh

    Joined:
    14 Jun 2007
    Messages:
    7
    Thanks Received:
    0
    Location:
    Warwickshire
    Country:
    United Kingdom
    Hi

    I am building quite a large ground level deck (4.5m * 10m) and want it to be as low as is practical w/o removing too much soil.

    What is the best advice about size of the decking joists ? should I stick with 150mm x47mm or is it Ok to go with 100mm x47mm ?? I would support them at 1m (or 1.2m spans) onto concrete blocks

    Also does anyone have experience of precast decking piers ? they are expensive !!! but are they better

    And finally, what is the view of composite decking out there ?

    Thanks

    R
     
  2. Sponsored Links
  3. Thermo

    Thermo

    Joined:
    21 Oct 2004
    Messages:
    9,979
    Thanks Received:
    150
    Location:
    Sussex
    Country:
    United Kingdom
    4 x 2 is fine, we use it all the time on ground level decks, just need some more support.
     
  4. aimhigh

    aimhigh

    Joined:
    14 Jun 2007
    Messages:
    7
    Thanks Received:
    0
    Location:
    Warwickshire
    Country:
    United Kingdom
    Thank you for your quick answer
     
  5. harryc

    harryc

    Joined:
    7 May 2007
    Messages:
    28
    Thanks Received:
    0
    Location:
    Wolverhampton
    Country:
    United Kingdom
    Would the composite not be too slip when wet considering it is just plastic.

    Why would you want to pay the extra cost for concrete piers when you can use engineered blocks.

    Harry
     
  6. Sponsored Links
  7. Thermo

    Thermo

    Joined:
    21 Oct 2004
    Messages:
    9,979
    Thanks Received:
    150
    Location:
    Sussex
    Country:
    United Kingdom
    we use timber posts set in concrete, long lasting, no bounce and easy to level.
     
  8. aimhigh

    aimhigh

    Joined:
    14 Jun 2007
    Messages:
    7
    Thanks Received:
    0
    Location:
    Warwickshire
    Country:
    United Kingdom
    Thermo

    would you do this for a ground level deck using 4x2 as you suggest ? rather than the concrete blocks ?
    thx
     
  9. Thermo

    Thermo

    Joined:
    21 Oct 2004
    Messages:
    9,979
    Thanks Received:
    150
    Location:
    Sussex
    Country:
    United Kingdom
    thats what i said! much easier to level the frame up as well.
     
  10. aimhigh

    aimhigh

    Joined:
    14 Jun 2007
    Messages:
    7
    Thanks Received:
    0
    Location:
    Warwickshire
    Country:
    United Kingdom
    thanks
     
  11. 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

     
Loading...

Share This Page