Yes that makes total sense and that is exactly what you would need to do to achieve the columns like in the link you posted. So your FINISHED block is going to be 13 1/2 inches square. That means for each block, you should cut two squares 10 1/2 " x 10 1/2" and then cut each of them diagonally. These corner triangles might be a little large, but it is easier to trim down than to cut on the 1/8" line. (If your finished block will be 13 inches, you would need two 10 1/4 " squares cut diagonally) Hope this helps.