Over the summer, I made some a platform and steps to keep my kids from falling out of the trampoline.
My youngest child was also fond of diving head first off the trampoline, so saved a hospital trip or two. I used chunky treated timber with half lap joints and decking for the platform.
I think I used one 4.8m (16ft) of treated 100x150mm (4"x6" inch) post, two 16ft decking lengths and some 2"x6" that I had lying around.
It's now December when I finally get around to editing and posting this and I think it should survive the winter no problem. I might add some 'feet' under the timber that is touching the ground as it will rot from the ground up in no time. I'm thinking some rubber or foam matting up on flat stones or pavers. Maybe.
I'll have another video up, sooner rather than later.