How Deep Does the Hole Have to Be for Inground Trampolines?
We are frequently asked by customers -
"how deep should the hole be for an in ground or sunken trampoline?"
As a general rule, the hole for your inground trampoline should be approximately three feet deep in the centre, (sometimes not just as deep for smaller trampolines). Most inground or flatground trampolines will require a bowl-shaped hole, deepest in the centre and shallow at the edges.
Recommended Hole Depth for Inground Trampolines
| Size | Shape | Hole Dimensions | Depth | Volume |
| 200cm/6'7ft | round | 160cm/5'3ft | 55cm/2ft | 0,6m3 |
| 270cm/9ft | round | 230cm/7'6ft | 75cm/2'6ft | 1,6m3 |
| 330cm/11ft | round | 290cm/9'6ft | 75cm/2'6ft | 2,6m3 |
| 380cm/12'5ft | round | 340cm/11'2ft | 75cm/2'6ft | 3,6m3 |
| 430cm/14ft | round | 390cm/13ft | 75cm/2'6ft | 4,7m3 |
| * | ||||
| 350x250cm/11'6x8'2ft | oval | 310x210cm/10'2x7ft | 80cm/2'7ft | 2,9m3 |
| 470x310cm/15'5x10'2ft | oval | 430x270cm/14'1x9ft | 80cm/2'7ft | 5m3 |
| 520x345cm/17'1x11'4ft | oval | 480x300cm/15'9x10ft | 80cm/2'7ft | 6,1m3 |
| * | ||||
| 280x190cm/9'2x6'3ft | rectangular | 230x140cm/7'7x4'7ft | 60cm/2ft | 1,8m3 |
| 330x220cm/11x7'3ft | rectangular | 280x170cm/9'2x5'7ft | 75cm/2'6ft | 3m3 |
| 410x250cm/13'5x8'2ft | rectangular | 360x200cm/11'8x6'7ft | 75cm/2'6ft | 3,6m3 |
RELATED GUIDE:
How to Install Inground & Flatground Trampolines
Recommended Hole Depth for Flatground Trampolines
| Size | Shape | Hole Dimensions | Depth | Volume |
| 330cm/11ft | round | 330cm/11ft |
A100 B85 C12 |
5m3 |
| 380cm/12'5ft | round | 380cm/12'5ft | A100 B85 C12 |
7m3 |
| 430cm/14ft | round | 430cm/14ft | A100 B85 C12 |
9m3 |
| * | ||||
| 200x200cm/6'7x6'7ft | square | 200x200cm/6'7x6'7ft | A65 B C12 |
1,5m3 |
| 330x220cm/11x7'3ft | rectangular | 330x220cm/11x7'3ft | A100 B85 C12 |
4,5m3 |
| 410x250cm/13'5x8'2ft | rectangular | 410x250cm/13'5x8'2ft | A95 B80 C12 |
6m3 |
| 500x300cm | rectangular | 500x300cm | A100 B85 C14 |
10m3 |
Demo Install Video - Hole Size Guide, Inground Trampolines
We have endeavoured to include all of the information that you will need in the tables above however, if you have any queries around how deep the hole should be for your inground or flatground trampoline please feel free to phone us on 01 960 1641.
References:
https://www.bergtoys.com/uk/faqs/trampolines/trampoline-entrenched-in-your-garden