What gauge for 3" exhaust

[1gfromND]

Just like the title says what gauge should I use for my 3" exhaust I'm going to build. I went to but some bulk tubing but it was only offered in 13 guage which 15 feet of it felt really heavy. What did you guys use when you built yours?

 

[steve]

That would be pretty heavy
I think most are 16 gauge and the cheap ones 18 guage if your talking about mild steel or stainless.

Steve

 

[terefic181]

You should be able to go to one of your local muffler shops and buy a stick of 3" standard exhaust tubing. I picked up I think a 10' one that was aluminized steel for I believe less than $20 and it welds very nicely .