I agree it doesn't look like cross bracing was even considered.. i like the simple design of the flatbed and without a bender this looks like a fairly straight forward design that a noob can start with. my plan was to cross brace the headache rack and 1/2 way up the rear window have braces that go to to rear and mount the spare on it. you think that would be stronger ?? and do you think 3/16 or 1/4 wall tube?
Thanks for your help