just out of curiosity, not that i'm planning on doing this, in january's issue of "wired" magazine, page 097, bullet item #5, quote... "Narrow steel beams, hidden from view in this photo, do more with less to hold up over half the weight of the loft upstairs: A soldering technique called full penetration makes joints 150 percent stronger than a typical weld."
just curious, what's that? how's it done? (i'm guessing it's a misunderstanding/mis-statement by the article's author)
b.w.