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Collection: The Advantages of Flatground Trampolines

Flat Ground Trampoline FAQ:

Everyone loves flatground trampolines (also known as ground-level and sunken trampolines) for a lot of very good reasons.

However, for many people there will be lingering concerns around things like installation costs and drainage.

But it isn't as difficult as you might think and we will explain below.

All Your Questions About Flatground Trampolines Answered


Flatground trampoline advantages - why sunken trampolines are becoming so popular:


  • they look fantastic, they're not so high off the ground and often won't have an unsightly safety net.

  • they can be safer with as the possibility of falling off the ladder or through exit from the net has been eliminated,

  • Because they're at ground level they won't get launched into the air like a frisbee by high winds

  • they can be more economical to maintain as you won't have to replace expensive safety nets,

  • it brings a fun new aspect to the traditional garden trampoline,

  • the trampoline will be much more accessible for everyone as there is no restrictive safety net or ladder.


Will my garden be suitable for a flatground trampoline?

Simple Suitability Test:

1. dig a trial hole (about 3ft deep) in the area where you want to sink your trampoline and leave for 24 hours to see if the hole fills up with water.

2. you need at least 2 metres around the trampoline as a safety run off and even then make sure there are no hazards such as brick edges or concrete posts which could cause injury.

3. make sure that there are no gas, water or electric cables in the area where you're going to dig.

See our installation guide here

What shape will work best in your garden?

The first thing you'll need to consider is what size and shape trampoline you want.

What works best in the space you have? Round, square or even oval. Do you have an existing trampoline you want digging in?

If you have an existing trampoline you want digging in then you will need to use a retaining wall to stop the earth falling in under the trampoline.




Using a traditional trampoline and full-height retaining wall will mean you'll have to excavate a lot of soil and the cost of the retaining wall is expensive.

A better option is to purchase a purpose-built in-ground trampoline such as the Capital In-ground Trampoline Kit.

The design of this solution means less soil disposal and the cost of the trampoline and retaining wall is also reduced.

Digging the hole

Firstly you'll need to determine the size and depth of the hole you want to dig. If you're using a full height wall and say a 12ft round trampoline, you need to dig a 14ft circumference hole to a depth of about 3ft. Once the trampoline and wall are in place, you then fill in on the outside and inside of the wall.

You have the option to either hand-dig the hole or use a mini-digger. On a smaller trampoline say a 10ft, provided your soil is not too hard, then it's fairly straightforward to dig by hand. It will take two people a full day and make a great work-out!

If however you have a larger hole to dig, say 14ft, then a mini-digger will greatly assist digging out most of the soil, whilst you can finish by hand.

Whether hand-digging or using a mini-digger you will still have the issue of soil disposal. You will need to hire a skip or better still use a grab lorry to remove the soil.

To save money, you could consider creating a feature in your garden with the excess soil - this could be a bank (for kids to play on) or raised flower-beds.



What about drainage?

Whether you need drainage will depend of the type of soil you have. If you have sandy soil, you probably won't require any further drainage. If however you have non-porous soil which has a high clay content, then it's wise to at least put in a soak-away or similar at the bottom of the hole.

In more extreme cases a drainage channel may have to be dug out to a lower lying area in your garden.

Putting a cover on the trampoline will also help prevent excess water getting into your hole.


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