Resting deck frame on loose stones

Discussion in 'Carpenters' Talk' started by bairdyboy1980, Feb 9, 2020.

  1. bairdyboy1980

    bairdyboy1980 Member

    Is it possible to lay my deck frame directly onto loose stones without digging out and cementing 4x4's in?

    9m x4m, my garden is all loose stones. I have tried digging out before for a clothes dryer and the stones are pretty deep.
  2. KIAB

    KIAB Super Member

    WillyEckerslike likes this.
  3. bairdyboy1980

    bairdyboy1980 Member

  4. KIAB

    KIAB Super Member

    Probably around a 1mtr,maybe a bit more, all depends on size of joist being used.

    Something like this,dimiss the sloping site bit,spacing close to same on flat site.

    Last edited: Feb 10, 2020
  5. ginger tuffs

    ginger tuffs Screwfix Select

    how much do the deckpiers cost compared to nornal concrete block
    KIAB likes this.
  6. wiggy

    wiggy Screwfix Select

    Or stick it on slabs.
    bairdyboy1980 likes this.
  7. KIAB

    KIAB Super Member

    Concrete block would do same,& cheaper, need a bit of dpc on block to stop damp rising.
    bairdyboy1980 and ginger tuffs like this.
  8. ginger tuffs

    ginger tuffs Screwfix Select

    surly damp would be needed on piers aswell and dont forget to allow air to circulated
    bairdyboy1980 likes this.
  9. bairdyboy1980

    bairdyboy1980 Member

    would this be the same spacing for composite (still timber joists)?
  10. dwlondon

    dwlondon Active Member

    The loose stony base sounds firm enough to build a deck on. I'd clear a place of loose materials. Then just lay slabs on a pat of mortar or concrete, where you need them and make those where your posts sit.

    Many decks seem to be over built for what they are. Much of what you need to make the deck stable and strong can be achieved with the carpentry work.
    bairdyboy1980 likes this.

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