We are stuck! We have a 3ft deep by 15ft diameter hole for our trampoline. The trampoline is sitting above the hole because we planned on putting bricks and a planter around it. We have large gaps around it. (because the legs form an octagon and not a circle). We would like to build a frame around the inside that we can back fill with dirt. Any Suggestions??!!

Did you find a way to resolve this issue?

If not, in what area of the country are you located? I might a few suggestions.

I'm a DIYer, not a vendor. I've nothing to try to sell you.