Mounted below a window, on a balcony, or on an outdoor wall, ... Get the PlansDIYs Raised Modern Planter Box Plans at Etsy for $3.99. 13. Built-in Bench.

Take the pieces of your wood pallet apart, separating the boards from the studs. Then, measure your plastic planter box lengthwise, add 6 inches, and grab a few boards from your pile.