It is now about 49" x 61".
I also worked on the flannel Stack and Slash quilt. Here are 2 piles (4 deep) that have been slashed and shuffled.
This is the stack on the left in the photo above after sewing and pressing the blocks. You can see each fabric shifts to a different position but they all have the same 8 fabrics in them.
This is from the stack on the right. There are 3 more groups for a total of 20 blocks for this quilt.