Knowing how important the smart spacing is, we are pleased to provide you with a two-tier aluminum shelving kit, available in 7, 12 and 14 feet options. Remember that greenhouse is a high-humidity environment, so choosing shelves made of rust resistant materials is extremely important. Don’t forget to take into consideration the ability to carry the weight of dozens of pots filled with moist soil and the plant itself. Made from durable aluminum, our shelving kit is designed to secure the comfortable and safe environment for growing your organic produce.