I had the same problem, but took the opposite approach. The roof of my shed extension is 2x4's, plywood and shingles. My solution - lower the floor. Took alot of redoing but it worked. The trouble was the owners book said the top of the rops was 76". I built it 80". Then I tried backing in the first time and wasn't too happy. /forums/images/graemlins/mad.gif The actual height of the tractor was 86". Lesson learned - read that silly fine print, you know - specifications are subject to change without prior notice.