What gauge tubing for floor frame

[TruckRat]

Thanks for the pics. Some great work. Problem is I don’t have a large brake to brake the edges for back and sides like old floor has. I have a 30” brake for smaller stuff. So I’m not sure how to attach without an angle or tube frame around the rear of cab and sides.

[Dr Crankenstein]

Originally Posted by charliebob

i use 16ga hot rolled for the floor. It is softer, easier to work, and has a stronger weld than cold rolled.

What?
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[charliebob]

Originally Posted by Dr Crankenstein

What?
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Dr. C, Thanks for questioning my hasty and generally unfounded and inaccurate statement. As you likely know better than I, the relative weld strength depends on many factors, including whether mill scale was removed on hot rolled, whether cold rolled case hardens at the edge of the weld, filler material, grade and quality of steel, MIG or TIG, skills of the welder, etc. From what I have read, the weld on cold rolled may be stronger in part because of more uniformity of the sheet and no mill scale. I simply prefer welding hot rolled and like its workability for floors ... and it is much cheaper than cold rolled.