All you need is some 4" x 4" posts for the corners and 1" x 4" boards for the rest of the bench.
Benches are actually simpler than they seem, and they're a great project for beginning woodworkers to test their skills on. All you need is some 4" x 4" posts for the corners and 1" x 4" boards for the rest of the bench. Make sure you've got a sander or some sandpaper and elbow grease so you can enjoy sitting on your new bench without worrying about splinters or sharp edges.