the only reason I came up with this is because the HDPE will be leftovers and I decided to make a wide box out of it and thought about how an HDPE drop-in would work.
the side view diagram at the top left is basically to scale besides the fact that I didn't have enough room to draw the platform to 5 ft high.
this is gonna be a temporary drop-in and will serve as a wide 8 ft box and hopefully will work as a stall when I make a proper, maybe bigger, drop-in. You think it'll work alright for a 16ft up flat box that I'm also making that's starting from around 12" high and ending at 2.5 feet high??
also the stall I was thinking about would be set up virtually the same as the drop-in, except using another drop-in to get speed and adding some coping at the top of the platform. i'm not sure at all how this would work.
the only problem I can think of when using it as a drop-in would be for snowboarders because of the metal in the middle, but fuck that.