Oh i have no doubt that his design is strong and works. I just think its a bit more work than needed for a boler
. Would you not get the same result using structural thick wall tubing? like 1.5X3" or 4"? with alot less work?
I have a heavy duty tandem axle
landscape trailer that is made with 4" Channel and ive seen 24'+ camper trailers made in a similar fashion.... i even think 1.5"x4" thick wall tubing is overkill for the weight
of a boler...
So im guessing that no one has made a new frame using tubing?