My amazing friend Nicole Easterday (Farmcurious)  asked me to teach a class in planter box construction at her lovely elementary school. I have posted my planter box specs here for anyone who would like to use them to start a garden at their school or home! These planter boxes are only 14" high for the little humans, but if you want taller boxes just add more boards and adjust the size of the 4x4 support boards. Feel free to share and contact me with any questions!