So I need a tube, 1.25" to use as a ball mount to pull a small utility trailer.

The local metal supplier doesn't have square tube with the same wall thickness as the store bought tube (3/8" I think).

So I was thinking I could build my own using 3/8" flat stock. If will be an interesting exercise at the very least.

So the question is whether to use 4 sides of equal length, chamfered and overlapping, or 2 different sizes top and bottom being smaller in width.

All comments, derision, jokes at my expense welcome!

thanks