Hire the best Home Extension Experts

Dig a cellar under a shed with concrete slab

Results 1 to 11 of 11
  1. #1
    Apprentice (new member) jgsa's Avatar
    Join Date
    Sep 2021
    Location
    Adelaide SA
    Posts
    17

    Default Dig a cellar under a shed with concrete slab

    G'Day

    I live in Barossa and recently visited a mate who has an amazing space ( wine cellar ) under his shed, the cellar was built before shed.

    We built a shed, basically so I could install solar panels on the roof and I watched them pour a very thin slab which has cracked all over the place, so I know the history of this shed.

    I would like to dig a skinny space under this shed and use it for a LI battery wall and possibly a wine 'wall', luckily one end of the shed already had an incline that is paved up to the shed roller door. I removed the pavers today and it would make an excellent entry and I could fit a skid steer between the concrete paths.

    The soil here is clay, so I would need to prop up the slab.

    I have done a lot of googling and found so really good sites about 'Wine Cellars' eg. https://www.eurocave.com.au/wine-cel...akes-to-avoid/

    But

    Not much about digging a cellar under a slab.

    My main concern is if I did this would I have to wait 7 tears before I sell the property ?

    Thanks for your ideas in advance.

  2. #2
    Golden Member
    Join Date
    Oct 2017
    Location
    Melbourne - Yarra Ranges
    Posts
    602

    Default

    If your concerned about that, then you possibly would need a permit approval etc etc. or maybe you are

    What are the dimensions of the shed and cellar?





  3. #3
    4K Club Member
    Join Date
    Nov 2009
    Location
    Geelong
    Posts
    6,152

    Default

    I know a bloke in Melbourne who dug out the whole underside of house slab house by hand with a shovel and bucket, shoring up as he went. Only took him about 3 years. Long time ago and memory is foggy but Adamo had enough room for his wine press, his barrels plus all his bottled stuff by the time he'd finished. House on a steep slope and he started on the downhill side and just kept going.
    "A big boy did it and ran away"

    Legal disclaimer denying responsibility to be inserted here.

  4. #4
    Seasoned DIY droog's Avatar
    Join Date
    Sep 2005
    Location
    Bendigo
    Age
    57
    Posts
    2,451

    Default

    Quote Originally Posted by jgsa View Post
    I watched them pour a very thin slab which has cracked all over the place
    Would not be digging under a slab in the condition you state it is.
    Dig up concrete, dig hole, create cellar, pour new concrete floor.

    Building rules and regulations should be followed for such a construction.

  5. #5
    4K Club Member Marc's Avatar
    Join Date
    Jul 2003
    Location
    Sydney
    Posts
    13,658

    Default

    Wouldn't dig under a slab not designed to be hanging. Let alone a thin and cracked shed floor that will not support itself, let alone a dog walking on it.
    I remember a concreter who learned his art in Uruguay. He poured concrete for a cellar in formwork held together with spit and wire, and was entombed under it when he decided to inspect a leak.
    Concrete has a cunning quality of being heavy.
    Science is never settled,
    it advances one funeral at the time.
    Max Planck

  6. #6
    7K Club Member
    Join Date
    Jun 2010
    Location
    Geelong
    Posts
    7,733

    Default

    If you don't plan to do it properly, consider including wheelchair access to the space

  7. #7
    Golden Member
    Join Date
    Oct 2017
    Location
    Melbourne - Yarra Ranges
    Posts
    602

    Default

    Quote Originally Posted by Bart1080 View Post
    What are the dimensions of the shed and cellar?
    Aside from the previous valid comments, where I was going with my question is for you to also consider the footings of the shed to ensure your works doesn't undermine the stability of the shed.
    And you need to consider any underground assets - gas, electricity, stormwater, sewage.

  8. #8
    Apprentice (new member) jgsa's Avatar
    Join Date
    Sep 2021
    Location
    Adelaide SA
    Posts
    17

    Default

    G'Day Bart

    Quote Originally Posted by Bart1080 View Post
    What are the dimensions of the shed and cellar?
    It is 5 mtrs x 10 mtrs but my plan is to dig on the right hand side only under the 1.5 mtr footpath outside the metal and approx. 2 mtrs inside the shed.

    Then there is no chance to load up the cellar walls as they will be off set.

  9. #9
    Apprentice (new member) jgsa's Avatar
    Join Date
    Sep 2021
    Location
    Adelaide SA
    Posts
    17

    Default

    G'Day MoonDog

    Quote Originally Posted by Moondog55 View Post
    I know a bloke in Melbourne who dug out the whole underside of house slab house by hand with a shovel and bucket, shoring up as he went.
    Thanks for the heads up, I was hopefully using a skid steer of most, but I'm certain I will have to use a shovel as well a lots of the time.


    Quote Originally Posted by Moondog55 View Post
    Only took him about 3 years.
    I was going to allow 18-24 months, so 3 yrs means I probably on the mark.


    Quote Originally Posted by Moondog55 View Post
    House on a steep slope and he started on the downhill side and just kept going.
    He is much braver than me, I have a almost flat site.

  10. #10
    Apprentice (new member) jgsa's Avatar
    Join Date
    Sep 2021
    Location
    Adelaide SA
    Posts
    17

    Default

    G'Day Droog


    Quote Originally Posted by droog View Post
    Would not be digging under a slab in the condition you state it is.
    Dig up concrete, dig hole, create cellar, pour new concrete floor.
    I would only need to 'deal' with one major crack which is under the door way if I dig offest. I emptied out the shed and all the major cracking is all on the left side I is think due to a driveway down the side.


    Quote Originally Posted by droog View Post
    Building rules and regulations should be followed for such a construction.
    The council are saying someone will call me back, but I'm still waiting, they told me they have never had anyone who has done this, so I'm guess they are hoping I will go away !!!

  11. #11
    Apprentice (new member) jgsa's Avatar
    Join Date
    Sep 2021
    Location
    Adelaide SA
    Posts
    17

    Default

    G'Day Bart


    Quote Originally Posted by Bart1080 View Post
    And you need to consider any underground assets - gas, electricity, stormwater, sewage.
    Yep , I have done that, it is in the very back of the block with one water pipe which is for over flow of a tank, I have basically dealt with this already as it was under the pavers.

Similar Threads

  1. Concrete slab (for shed) near sewer main
    By tifflee in forum Plumbing
    Replies: 7
    Last Post: 27th Oct 2019, 10:55 PM
  2. Looking to turn an old fibro shed concrete slab into a BBQ area/ Gazebo..
    By willej in forum Pergolas, Gazebos, Strombellas & Rotundas
    Replies: 0
    Last Post: 16th Feb 2015, 09:54 PM
  3. Concrete cellar
    By manofaus in forum Concreting
    Replies: 11
    Last Post: 3rd Nov 2012, 10:53 AM
  4. Concrete slab for garden shed
    By Programmer in forum Concreting
    Replies: 20
    Last Post: 25th Oct 2009, 12:51 AM
  5. Concrete slab for shed
    By atregent in forum The Garden Shed
    Replies: 9
    Last Post: 12th Feb 2007, 02:45 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
  •