Boy you got that right. I was toying between a 30x40 and a 40x60. Told the wife we didn't need that much space in the 40x60. What an idiot I was.I did my metal 24x28 with 9 foot walls back in 2006 and it didn't quite break 5K with the concrete slab. Kitty told me at the time to do 2 and hook them together. I wished I had listened. Stuff will never be that cheap again.