I saw a similar design for this strawberry tower over on the eastern shore of Maryland. I decided to figure out the angles myself and make it a bit bigger. With a little geometry and a drafting program I was able to build them 3 ft. up to 6 ft. tall. Mine are made entirely of ACQ (non arsenic) treated lumber. Cedar was my second choice. Friends and locals plant flowers and herbs in them. I sell the planters locally on my website, but haven't shipped them because of shipping costs (they're heavy and big) After several email requests, I now offer woodworking plans for these, with actual step by step photos and instructions - you can find them on my site. Check out the photos and see what you think. Comments are welcome.