[mx1alex]

You can kinda see what I did in this pic. i basically ripped a 1"x2" tubing and put a bolt through the front and back legs.

 

[mx1alex]

My boat is pretty much the same size as yours and I just have the 6 legs all on the outside. I probably could have gotten away without using the middle ones..

 

[mx1alex]

So you don't have any middle legs and yours is solid?

Yup. In fact the sides bowed up a bit when I was welding the braces on and the middle legs don't even touch the rail. Even when standing on the deck.

 

[mx1alex]

Are you using 1"x1" 14 guage? And what are most of y'all using for your actual platform material?

mine is 1x1" 15 guage.