I went to Lowe’s with a basic plan. I knew
I wanted 1×2 furring strips for the inside posts. At only $1 for 8 feet, how could I not? Then I remembered the rolling shoe storage I made for my mudroom (http://www.targetandtory.com/diy-laundry-room-makeover/). I used tongue and groove planks there, and decided this is practically the same and bought some more.
I purchased a planter from Lowe’s and then started winging it. I cut the furring strips to 35″ with my miter saw. I then placed them on the sides of the planter to get an idea at how long I needed to cut my planks. I ended up needing 12.5″ on 2 sides (I made sure there was enough overhang so the side pieces would fit up against it) and 10.25″ on the other 2. I attached all of the planks with my Ryobi Nail Gun.