There several ways to "bend wood" You can make a glulam, like Don suggested. You need strips of wood, glue, and if possible a press made out of some dimensional lumber. You can steam bend wood, but that is not optimum. You can also back cut the board with a lot of saw kerfs that allows it to bend. As Don said though...it depends on your skill in woodworking. I'd personally use the glulam method. There are a lot of books and websites that describe any of those methods.