I have a cheap Harbor Freight trailer that I am taking the time to weld a lot of the material together instead of relying on the bolts to hold it together. At the same time I am also removing the original coupler and extending the tongue 3 feet to give me more clearance when backing it in my driveway to avoid hitting the bumper of my car. My question is regarding the square tubing I'm using for the tongue. The trailer is made out of 11 gauge steel and the tubing i'm using is the same thickness. I was going to use 6 feet of 2.5" x 2.5" 11 gauge steel tubing. 3 feet of it is to extend the tongue and the remaining 3 feet will extend behind the coupler and be welded to an added brace on the a-frame of 2" angle iron. Of course the original coupler sat on top of a plate of the a-frame. This extension will pass under that plate which I will weld the tubing to the plate (top and bottom). I just want to be sure that this tubing will be strong enough (providing my welds are good) and I don't load the trailer past the 1200 lbs maximum load rating.Thanks in advance.
Reply:I would think you'd be fine with a 2-1/2 x 2-1/2 x 1/4 wall tube for the tongue.MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op