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.

inground trampolines hole size guide

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

flatground trampolines hole size guide

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