Size is up to you. I like my twins to be around 60x90, but that is bigger than most people make them. So if your blocks are 6” Uunfinished than that is 5.5” finished in the quilt. 60 divided by 5.5 is 10.9 so you could do 10 or 11 wide. Then 90 divided by 5.5 is 16.36, so I would do it 10 blocks wide by 16 blocks long, so 160 blocks. That all changes if you want sashing, or on point setting, or many other factors. But a straight side by side block set would be 160 blocks.
Last edited by QuiltnNan; 08-14-2018 at 02:15 AM.
Reason: remove shouting/all caps