For the last few years I've been using a Ford Focus estate for work. Had a standard two bar roof rack for holding the ladder. My ladder would overhang the back a little but I could open the boot without having to take it off. I've just changed to a Vauxhall Zafira and have fitted some bars to the cars rails. For me to get the boot open while the ladder is on top it needs to be sitting quite far forward which is causing it to move around a bit more than normal whilst driving. Is it possible to get some other form of roof rack that will hold it better? Had a look at van roof racks that look like it would be big enough but aren't for fitting to rails. Anyone have any ideas?