A couple of weeks ago we built some planter boxes for the kids’ school. I didn’t take any before pictures, but the old ones were pretty close to disintegration. We used the awesome 2×10 rough cut cedar from Mr. Plywood. The large size meant we could build the boxes with only a single piece of wood for each side. Ledges were added on the ends to serve as seats for the kids and to cover up the tops of the corner blocks, with the thought that that would eliminate the weathering of the end grain.