Corn and Beans

I'm working on a Civil War reproduction quilt and I came across a book of quilt blocks, some of which I wanted to incorporate into the quilt. The blocks need to be 12x12 so the quilt blocks in the book are exactly the right size. I started cutting up the Union Square, but there were so many pieces that I quickly moved on to the corn and beans block. I cut pieces for four blocks. They sewed up pretty quickly once the pieces were cut, I laid out the different sections and took a photo, to remind myself when I made the other blocks so that I didn't have to keep refering to the instructions. So once the block was sewn up and trimmed, it measured exactly 11x11. Wow! That's a whole inch off! It's still a beautiful block but now i'm faced with putting a border on them to get to 12 inches or just hoping there will be another project later in life where I can use them. I can't decide.