they are very sturdy at a 1/4". start using 1/2" and your guard can end up weighing a couple hundred lbs.
one issue with the stock cucv guards is along the front between the main uprights (first, second and third pic). they quite often bend there cause of the design.
i needed room to put my 9" lights so i modded it to take care of the bend prob anyway. after i modded mine, we built one for buddy's truck. make the main hoop first then add everything else. they also slightly curve in at the ends to match the profile of the front of the truck. if you need measurements let me know and i will go measure mine
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