floormeintucson wrote:
You can split the difference or have one wall out.
Those are really the only two choices. Along with that , I'll just add that if you are working with 2 1/4" flooring, you might want to find some 3 inch to use as a possible first or last row so that you don't end up with a tiny rip cut for a last row .
Snap a chalk line where you think you want to start and keep in mind that hallways or area where you can see a long stretch of floor are the ones that really need to appear straight.The middle of a big room can look perfectly fine if it is slightly off parallel.
Lastly,If you chalk line a first row, you can use a calculator to to figure out how far away your last row of flooring will end.Use that figure to make marks on the sub floor so that you can snap your chalk line again where the last row will be.Then by looking at that chalk line, you'll get an idea of how far off you really are or aren't.
Tape measures and calculators will be your friend here.