On Wednesday I went to fetch several lengtht of 6mm round .I had intended to cut them in half to get them in as its possible to flatten back the passenger seat (first taking the rear seat out) and get three metres in easily down to the footwell.I looked at the steel I was carrying ,then at my frontera and thought" I wonder".I put a bit of canvas on one side of the roof alongside the roofrail and slid the first bar over from the back until flopped down and touched onto the bullbars.I had a look, and reckoned it was easily within the law of one metre over front and back.I then loaded all fifteen bars on and tied the front to the bull bar, the middle to the roof rail and the other ends to the spare wheel.I put a bit of plumbing pipe insulation foam on the bullbar so as not to scratch the paint too much. Really pleased,it was fine all the way home about four miles.The next day I did the same but with two bits of 12mm round. This means I save time by not having to hitch the long trailer up with the board and if I decide to get the steel on my way into work I dont need to go to work to get the trailer first.
However I am not sure about putting bigger bits on, these small sections were ok as they curved easily and sprang back nicely when untied. I will cautiously experiment to see how thick a section I can get away with.May have to glue a pad of thick rubber onto the roof on the passenger side at the front if I keep doing this.
I must remember next time to unload them from the back next time as I nearly damaged the windscreen pulling them off the front
So this good news for my frontera, it can carry 6metres of steel on it.
so it got chopped up into small bits.I loved your story about the 7 m length 
