8. Since the guards are custom made, we could use any size tubing with any wall thickness we wanted. Thinner-walled tubes weigh less but they are not as strong. Since this wasn't a fullsize truck (where we would've used 1.75-inch tube), we felt comfortable with a mix of 1.5-inch, 0.120 wall tubing for the supports and 1.5-inch, 0.095 wall tubing for the guard tubes. We used the lighter tubing to keep weight down and felt comfortable doing so since this isn't a rockcrawler and doesn't need the most hardcore protection.