Did a quick setup of one of the new bathtub floor from Bear Paw Wilderness that my son is going to use in the Lean. Ordered two of them when I ordered.
I had them made in the 70D sil at 30āx90ā and went with a 5ā wall.
It's a one piece design and you can see how the aluminum shafts are added in the corners.
Here is the link to the web site again.
Bear Paw Wilderness Bathtub Floor