Hire the best Decking Expert

deck on ground help pls

Results 1 to 13 of 13
  1. #1
    Apprentice (new member)
    Join Date
    Sep 2005
    Location
    gympie
    Posts
    8

    Default deck on ground help pls

    first of merry christmas to all, well ihave 4 weeks off over chrissy and the wif has the LIST for me to do, the main is deck around the pool, this is where the problem starts lol.

    due to hight limits i have to go deck on ground (top of pool coping down to natural ground is 140mm)

    the ground is good drainage

    what size timbers would you recommend using preferebly using treated pine (mmmmm soft wood)

    the layout of the timber

    can the whole deck just float on the ground, or how would i fix it to ground, the deck is to be built within the confines of the pool bond beam and treated pine sleepers on the outside , so in my theory it should not move around.

    im usig kwila decking 19mm thick and propose to use stainless steel screws (square drive), any advice of other fixing solutions appreciated.

    sorry about the n00b questions, is anyone near sunshine coast queensland i maybe able to chat with

    well ppl "may your tools be sharp and your timber be straight"

    all the best stay safe

  2. #2
    1K Club Member journeyman Mick's Avatar
    Join Date
    May 2003
    Location
    Kuranda, paradise, North Qld
    Age
    60
    Posts
    1,782

    Default

    Browny,
    I did a deck in a similar situation years ago. Used treated pine sleepers on a bed of packed down crusher dust. Then trip-L-gripped joists on top of this with decking laid the usual way. Not ideal, but it worked.

    Mick
    "If you need a machine today and don't buy it,

    tomorrow you will have paid for it and not have it."

    - Henry Ford 1938

  3. #3
    Wood Butcher meerkat's Avatar
    Join Date
    May 2005
    Location
    Melbourne
    Posts
    29

    Default

    Hi Browny,

    ours is just off the deck so to speak.

    We put posts in as per the recommonded spacing into cement as required.

    Then the bearers went on (treated pine) then the joists on top of them.

    The whole deck sits on top of the bearers & joists which needs one step to get onto the deck.

    Sorry about the lack of detail but if you want them just let me know.

    Basically structually, its what is required whether its just off the ground or a metre off. I wanted to make sure that the council would have no problems if they wanted to have a look.

    My dad says its over engineered but it will last, right down to the tar on the areas that would get wet from the spa.

    Regards
    Andrew

    |^^^^^^^^^^^^^^| |^^^^^^^^^^^^^| ||
    | .....BIGGER ......._____| | ...BEER TRUCK.....| |||";,___.
    |_..._...__________/====|_..._..._______==|=||_|__|..., ] -
    "(@)(@)"""" *|(@)(@) "(@)(@)""""*|(@)(@)****(@)

  4. #4
    Golden Member mic-d's Avatar
    Join Date
    Aug 2004
    Location
    Brisbane
    Age
    55
    Posts
    574

    Default

    I seem to recall doing one several years ago where I formed up a bunch of small pads (150x150 or so) all at the same level out of concrete then attached the joists to these and put in some trimmers (noggins) between them too. Then handnailed the deck. Used a water level to get the pads to the same height.

    Cheers
    Michael

  5. #5
    TIMBER FLOOR CONTRACTOR Larry McCully's Avatar
    Join Date
    May 2006
    Location
    sydney
    Age
    62
    Posts
    787

  6. #6
    Apprentice (new member)
    Join Date
    Sep 2005
    Location
    gympie
    Posts
    8

    Default

    Quote Originally Posted by meerkat View Post
    Hi Browny,

    ours is just off the deck so to speak.

    We put posts in as per the recommonded spacing into cement as required.

    Then the bearers went on (treated pine) then the joists on top of them.

    The whole deck sits on top of the bearers & joists which needs one step to get onto the deck.

    Sorry about the lack of detail but if you want them just let me know.

    Basically structually, its what is required whether its just off the ground or a metre off. I wanted to make sure that the council would have no problems if they wanted to have a look.

    My dad says its over engineered but it will last, right down to the tar on the areas that would get wet from the spa.

    Regards
    Andrew
    hey meerkat, thanks, what size timbers did u use, all of what u did came in under the limited 140mm i have to play with, thanks once again

  7. #7
    Apprentice (new member)
    Join Date
    Sep 2005
    Location
    gympie
    Posts
    8

    Default

    thanks to all replies, am working on some plans and will post for feedback, many thanks and a safe new year

  8. #8
    Apprentice (new member)
    Join Date
    Sep 2005
    Location
    gympie
    Posts
    8

    Default

    Quote Originally Posted by journeyman Mick View Post
    Browny,
    I did a deck in a similar situation years ago. Used treated pine sleepers on a bed of packed down crusher dust. Then trip-L-gripped joists on top of this with decking laid the usual way. Not ideal, but it worked.

    Mick
    why do u say not ideal, is it a 'not sturdy enough' problem, thanks for the reply

  9. #9
    1K Club Member journeyman Mick's Avatar
    Join Date
    May 2003
    Location
    Kuranda, paradise, North Qld
    Age
    60
    Posts
    1,782

    Default

    Brownie,
    it was definitely sturdy enough, we sized the joists as per the normal span tables and the "bearers" (sleepers) had a zero span so they weren't going to deflect. Decking was laid with 450mm or less span as per usual. The problem was (and will be in your case) that there's next to no clearance between the subfloor and the ground. Usual practice is to allow at least 600 clearance to allow adequate airflow and keep the timber clear of the ground. This clearance is required for access, termite inspection and most importantly to prevent fungal decay. Dpending on your local climatic conditions etc you could have fungal attack resulting in an unsafe deck within a year or two, but in other areas you might get away with it for a couple of decades.

    Mick
    "If you need a machine today and don't buy it,

    tomorrow you will have paid for it and not have it."

    - Henry Ford 1938

  10. #10
    Golden Member
    Join Date
    Jun 2003
    Location
    ......
    Posts
    663

    Default

    Quote Originally Posted by browny000 View Post
    thanks to all replies, am working on some plans and will post for feedback, many thanks and a safe new year

    Looking forward to it, as the reason I haven't built a deck in the BBQ area is the limited head room. If your's works out okay I may do it as well.


    Peter.

  11. #11
    Apprentice (new member)
    Join Date
    Sep 2005
    Location
    gympie
    Posts
    8

    Default deck layout

    well guys here is the proposed layout for the joists on my deck, i certainly aint the architect/artist lol but it should make sense if not ask and i will endeavour to explain....all the best keep it safe
    Attached Thumbnails Attached Thumbnails deck-layout2.jpg  

  12. #12
    Senior Member Trav's Avatar
    Join Date
    Oct 2003
    Location
    Canberra
    Age
    45
    Posts
    358

    Default

    Browny

    I think you might find the spacing between the joists is too large. I have usually gone for a 400 or 450 spacing - any more could result in flexing of the decking boards (which could lead to loostening of the fixings).

    Were you going to use two screws per board per joist? I considered using screws, but decided against it as two screws looked too 'busy' on a single decking baord, but one screw could encourage cupping of the board.

    Trav
    Some days we are the flies; some days we are the windscreen

  13. #13
    Senior Member barrysumpter's Avatar
    Join Date
    Jul 1999
    Location
    Glen Iris, Vic, Australia
    Posts
    439

    Default

    Have a search in these forums for my posts regarding my Octagon Deck.

    I've just been informed by an associate that he followed my advice and was very happy with his outcome.

    Specifically, research first, pre-drilling nail holes, twisted shank nails, etc.

    Sumpter Deck Octagon

    Your timber supplier should know all the latest standards.

    All the best,
    Thanks,
    Barry G. Sumpter
    May Yesterdays Tears Quench the Thirst for Tomorrows Revenge

Similar Threads

  1. Help with new deck close to ground
    By samchuang33 in forum Decking
    Replies: 14
    Last Post: 15th Dec 2007, 12:33 PM
  2. Bearers for Ground Level Deck
    By pfuller in forum Decking
    Replies: 5
    Last Post: 13th Dec 2007, 12:24 PM
  3. Is there a min ground clearance for a deck
    By dub3media in forum Decking
    Replies: 5
    Last Post: 4th Dec 2007, 09:43 PM
  4. deck footings into rocky ground
    By wigfam in forum Decking
    Replies: 4
    Last Post: 13th May 2004, 05:12 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •