The 6.7ft x 6ft Meridian Greenhouse is the ideal choice for gardening enthusiasts and is the perfect addition to your outdoor space. Its 6 foot high side walls make it comfortable for standing and help ensure proper airflow. The 32 inch high cedar base walls are built with sturdy tongue and groove construction.They also enable you to store gardening tools away from view, and built into the base wall is a 16 inch lower shelf. The double wall polycarbonate windows are strong and durable, while an automatic roof vent opener and louvered base wall vent maintain optimal temperature and humidity levels.