There is some seriously [img]images/graemlins/bs.gif[/img] information here...
1. Yes Nascar MAY use .95 wall tube, but as I understand they require Chromoly, which is a WHOLE different ball-game than DOM, or HREW. 0.95 wall
2. A Nascar cage is built completely differently than an average offroad cage. The cage/chassis are one in the same. The average trail Jeep is 4500+ pounds, MUCH heavier than the 3500 minimum required by Nascar.
3. The average offroad cage is constructed of .120 wall 1.75 to 2" DOM or HREW, with 1.5 saved for gusseting and non-essential bracing.
4. Pipe does not = tubing. Pipe is measured ID, tube is measured OD. Different dies, different structural characteristice, etc.
5. What makes me qualified? Nothing. Not a darned thing other than the research I've done, here and elsewhere, along with the 11 cages I've built in the last year.
6. For further info on the subject, I've jotted down a few thoughts on the subject.
from previous discussions.