Just a public service announcement about .120 erw steel tubing
If I wouldn't have put in the additional rocker bars my cage would have failed.
He measured my 1st rocker bar and it measured .109 the nhra spec minimum is .120 for mild steel. But the majority of the tubing was legal.
So you guys building cages take notes of that, it would be a crappy day if you had to scrap some of your cage. DOM would be the correct way to go for .120 wall but it should be checked also.