Directions are the same no matter the size. I suspect what you're asking for are the cutting measurements.
I echo the statements here about 9" being a difficult size. If you absolutely HAVE to have a 9" block, I think the only way to do it is to put it into EQ, change the size to 9", and print templates, because they are going to be weird, like triangles at 3 & 5/16ths of an inch.