To be honest, I didn't really use the tutorial, I did it my own way. I cut a 16" x 16" square out of each of the contrasting fabrics. Right sides together, I sewed the sides, leaving 2 inches on either side open. Next I folded under the (8) 2 in flaps and top stitched them, but not together. Last I folded under and top stitched the long open sides. That's it. The dowel rod and double drapery rod brackets were both from Lowe's.
I'm super pleased with how it turned out and my hubby helped install it above the toilet. I love the nautical ropes holding the magazines and the peek of anchors when you look inside. Happy sailing and happy reading.