I was wondering if anyone could help me out with some information concerning stud welding. Is it allowed to weld two studs(one on top of the other) to achieve a desired stud length. For exampl: a 12" stud is required, can to 6" studs be welded together to achieve the required 12"? I cannot find anything in D1.1 that would not allow this. Any info would be greatly appreciated. Thanks.