The truth is that they MIGHT work, might not. The
power boat stuff is usually much less sturdy, designed to be used on inland waters and small
boats. Big
power boasts use custom
canvas and the same
hardware as most sailboats. The stresses if mounted to a heavier platform are substatial. On a small runabout when the
wind fills a bimini, the
boat heals over, and on a heavier
boat, much less so - the
hardware and cloth are taking more strain.
The general consensus is that at least 7/8 stainless tubing is needed for a proper sailboat
dodger.
The other issue is fit - you have to of course make sure that the thing fits your boat - the mounting points all have to work,
sheets out of the way, etc.
I have looked in the past at these as well, and have not found one that would work of our boat. Yours may be different. The prices are sure attractive! Good luck and tell us if you find something that works!
Chris