nygal--are you printing the section at 6"? I am planning to make 10" blocks so was thinking I needed to put 10" in the place asking for "block size"...it should say "section size", so if you want 12" blocks, print the section at 6" and it will all be on one page. Hope that works for you!
**Sorry...I read your email and then did a practice printing before reply so forgot you said 8" block...you would just need a 4" section then and that will for sure fit.