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How To Sink A Trampoline

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how to sink a trampoline

If your children would love a floor level trampoline and you want to let them bounce without fear of them falling off, you need to know how to sink a trampoline!

This job was a planned part of our garden makeover last year and having the trampoline at ground level has revived interest in it from the kids who are never off it these days! They’ll even run out of the back door, have a bounce and run back in and I don’t worry about anyone falling off it. Plus I was able to get rid of the ugly netting that used to surround the trampoline when it was at ‘climb up’ level.

how to sink a trampoline

It is a big job and it took us about six weeks to complete as we were doing it on evenings and weekends around work but if you were on it full time then it’d probably take about 3 days. It’s worth the effort as the results are beautiful. Here’s how to get started:


  • Measure your existing trampoline then dig a hole leaving an extra 6 inches all the way around. For the depth, dig the length of the normal trampoline legs if you are sticking with your existing floor finish. As we wanted to lay stone around ours, we allowed the trampoline to sit higher than original floor level during the build as it would become floor level once the new stone flags were laid.
  • To dig the hole you will need to hire a mini digger and a skip to take away the waste rubble unless you are planning to use it elsewhere in the garden.
  • digging out

    Digging out the trampoline hole

  • Once the hole is dug, sit your trampoline in it and concrete in the legs. You will need to pour in as much concrete as it takes to cover the metal legs at the bottom. Then leave this to set for a few days.
  • sunken trampoline cemented in

    The trampoline is cemented in

  • Infill the side walls of the trampoline hole with hardcore. Put concrete around the top edge of the trampoline at floor level to secure the edge of the hole in place.
  • trampoline is almost finished

  • Do whatever floor finishes you are having. We laid Indian stone flags around the trampoline and on the rest of the patio. Once laid, do the pointing to complete the job!
  • happy on trampoline

    girl flies in to trampoline

    So now you know how to do it, would you consider giving a sunken trampoline a go? Let me know in the comments.

    For another garden makeover idea, this post shows you how to build a fire pit

    Article Categories:
    Home · How To · Tips & Hacks

    Comments to How To Sink A Trampoline

    • We really need to do this in our garden, it looks so much better than having the ugly nets up x

      Sonia @ This Mummy Loves 10th August 2015 10:20 am Reply
      • Totes agree!!

        Nadine Hill 10th August 2015 12:28 pm Reply
    • Such a good idea!!! Looks much neater for sure, big job though! x

      helen gandy 10th August 2015 11:55 am Reply
      • Thank you – it’s definitely neatened up the back garden! x

        Nadine Hill 10th August 2015 12:27 pm Reply
    • ok i need a garden so I can do this! what an amazing idea

      angela hamilton 10th August 2015 4:04 pm Reply
    • I love the idea os sinking one into the garden, I just won’t tell the OH what a big job it is 🙂

      Zena's Suitcase 10th August 2015 4:34 pm Reply
      • Mum’s the word!

        Nadine Hill 10th August 2015 7:47 pm Reply
    • What an absolutely fantastic idea – I think that’s a great way to have a trampoline. x

      Sarah Bailey 10th August 2015 6:02 pm Reply
      • Thank you Sarah! x

        Nadine Hill 10th August 2015 7:46 pm Reply
    • I am soooo jealous that looks brilliant! fun time and time again

      leonii amber 10th August 2015 6:31 pm Reply
    • This is such a fab idea, though I did read your title as how to sink a tampon lol x

      Rachel 10th August 2015 8:06 pm Reply
      • haha That’s my next blog post! 🙂

        Nadine Hill 10th August 2015 8:57 pm Reply
    • How cool this is I dare not have one due to my daughter and her hydro.

      Hannah Wood (staveley) 10th August 2015 8:58 pm Reply
    • Omg i love this idea!!!! I’d love a trampoline but no room so this would be perfect haha! x

      Kerry (@Ohsoamelia_blog) 10th August 2015 10:48 pm Reply
    • Great Idea! Thanks for sharing!

      Gemma 11th August 2015 9:15 am Reply
    • You have a beautiful garden. My boys would love a trampoline, but our garden is on such a slant, it doesn’t allow for one

      Jen 11th August 2015 9:44 am Reply
      • Thank you Jen x

        Nadine Hill 11th August 2015 10:15 am Reply
    • Love what you’ve done. I’m a big fan of a sunken trampoline … another tip is to run a drainage hose underground away from the trampoline to get rid of rain water xxx

      zingzingtree 11th August 2015 5:55 pm Reply
      • Nice tip! Thank you.

        Nadine Hill 15th August 2015 12:32 pm Reply
    • what a great thing to do by sinking the trampoline , do you still need a cover round it ? 11th August 2015 5:59 pm Reply
      • Hey! No we don’t have a cover round it – just leave it to the elements but it has been fine and it has been sunk for a year now so we’ve had all seasons with it!

        Nadine Hill 12th August 2015 8:46 am Reply
    • I love the idea of a sunken trampoline but maybe when my kids are a bit bigger – the net has been a saviour on a few occasions

      Kara 12th August 2015 9:50 am Reply
      • Oh yes- toddlers would need a net!

        Nadine Hill 12th August 2015 12:06 pm Reply
    • I would love to do this for our trampoline, but couldn’t face the effort involved

      Yet Another Blogging Mummy 12th August 2015 7:40 pm Reply
      • Yeah – it is hard work!!

        Nadine Hill 15th August 2015 12:37 pm Reply
    • Can no-one remember the That’s Life campaign in the 80s to dig up concreted and Tarmacked playgrounds and replace them with safer surfaces? This sunken trampoline idea is brilliant BUT please please do not advise people to do it without ensuring that the surrounding area is laid with a safer surface than stone!! I’m wincing at just how easy it would be for someone to bounce off and land head first onto it. There are many relatively inexpensive surfacing options that will cushion the impact of a child’s accidental fall and significantly reduce the severity of an injury. I’m sure it will be simple enough, in this case, to find such a surface to put over the stone you have already laid.

      Adam Carpenter 13th August 2015 12:54 pm Reply
      • Hi Adam, I think it’s up to the individuals to decide on what they will do at their own homes and this post is to show ‘how to’ not to advise parents on child safety. We chose to lay stone – we have older children, not toddlers so it is a great solution for us. Obviously you would do different. Thanks for highlighting the other options, but I’ll be keeping our stone exposed – I don’t want the garden to look like a council playground.

        Nadine Hill 13th August 2015 7:07 pm Reply
    • Love this idea! The inlaws have a trampoline and the netting is always falling and looks so tired. This is a great way to revive it.

      Laura 13th August 2015 9:49 pm Reply
      • We did this to revive our trampoline – it is a good few years old so you don’t need to buy a new one!

        Nadine Hill 15th August 2015 12:36 pm Reply
    • I REALLY want to do this!!

      Emma 15th August 2015 10:36 am Reply
      • haha Do it!!

        Nadine Hill 15th August 2015 12:23 pm Reply
    • I’ve seen so many sunken trampolines lately I really feel like I need one! Er … For the kids *cough*

      Joanne 17th August 2015 1:46 pm Reply
      • Sure – for the kids! I believe you!

        Nadine Hill 17th August 2015 4:10 pm Reply
    • It’s a good idea. Trampolines can be a bit of an eyesore in a garden, but they are a lot of fun.

      Erica Price 18th August 2015 8:23 am Reply
    • I want that for me never mind the kids!!

      Abi - Angel Eden Blog 20th August 2015 12:06 pm Reply
    • I love, love, love this! I find trampolines quite unsightly in gardens, and the only time I’ve thought I could see ourselves with a trampoline (if we had a garden rather than a small yard!) was when I saw one just like yours (but on grass). 6 weeks… you are a determined bunch!

      Mel 5th May 2016 10:01 pm Reply
    • Pingback: Child Friendly & Safe: The Home Every Family Needs  | JuggleMum

    • Thanks for sharing your knowledge. I will definitely try this next in the upcoming summer.

      Adam 6th May 2020 11:44 am Reply
    • Nadine, thanks for the detailed methods. Surely, I’ll try it very soon. My kids love the in-ground trampoline very much.

      Noah 14th June 2020 12:50 pm Reply

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