The Tiny Garden child's gardening planter box. Click for the build plan. I made a kit of these wooden pieces for my 4 year old son and we assembled it together. Made with untreated 2x4s (walls), 2x2s (legs), plywood (floor), and lathes (cross on top). Gives him four square feet to garden with using the Square Foot Gardening Method. He can reach everything with easy access for planting, watering, and weeding.