11" tall by about 10.5" wide. Photos by cell phone. Proof was hanging so not really square, but I couldn't wait. I needed to see what I cut. I didn't do the best job of finishing the wood before I began, so it's troublesome to print and the wood warps. I will never again not begin a properly prepared board.
I have 9 more sheets of paper to print, and then I will begin planning out the next block.