/diy/ - Do It Yourself

>>2547985
To expand on this, most things don't even need to be full penetration welded. A 6mm weld on a 10mm thick bar will hold just fine. Add a small gusset and it will be nearly indestructible. People go on about "full peen" like it's a law but if you're just making a coffee table who really gives a shit.
Pic related (other than showing off my setup) was all made with 25mm square tube that's 1mm thick, welded as I described. Cleanliness is very important because you're doing a straight run, no weave, so you don't get a chance to burn any slag pockets out.