bracing for a full skin

what are most people using to brace the full skin combo?

you could prob use alot of diff stuff but i think some 1x1 box tubing would do the trick

Thats what mine is... from the top rear corners down on an angle and they meet in the middle, welded to the bed floor

i did 3 horizontal bars.. one at t he top, one in the middle, and one at the bottom..

thanks for all the help