Found a place that sells a "kit" for building your own floor scale. My kit can handle 20K. The kit has all the guts you need, I need to provide my own platform. They recommend 3/4 or 1" aluminum. ...
I think it's a waste. I don't care what 4 corners weigh, I just weigh front and back axles and divide by 400 or some silly number. $340.00 will buy enough fuel to go from N Va to Orlando and back to NC.