In the theatrical industry, we'd frame out the platform with 2x6 inch, ribs every uhhhh, i wanna say 18 inches (or some what-the-shit, it's in the stock scenery book)and 3/4 inch ply right on top dere. Then attach the 2x4 legs with carriage bolts. Probably way over built with the 2x6, just the way OSHA likes it. Since I don't have 2x6 nor am I planning on spending any money on 2x6, I will be using the lovely 2x4 leftover in my shed. Anyway, thanks for the video. Good refresher course.