You need 4 pallets, cut 1 in half, cut the last one into 3ths. toss the middle of this one, you will not use it. Nail in strips of wood to form 4 pockets in the top of each pallet. Line each pocket with plastic, staple to sides and poke several holes in bottom to drain. Attach together as shown , I painted with a spray Krylon outdoor paint and filled pockets with soil (I added Soil Moist to help retain water) Plant your plants and keep watered and feed!