Here are three of soon to be 12 raised beds when I am finished. I used 3 1/2" x 5' cedar pickets with 2"x3" boards at the corners. I didn't trim the top of the pickets nor did I add the cap piece at the top. They are 5'x5' because I didn't want to cut the fencing to save some money, I can still reach the middle from each side. Each box cost 15 dollars. They have survived three fierce New Mexico wind storms and a hyper cattle dog and a pit bull mix without a split or dent.