Greenhouse tunnels, often referred to as a hoop house or high tunnel greenhouse, are structures made of a pipe frame that is typically covered with a single-layer greenhouse poly film. Its an enclosed space that allows a grower to manipulate conditions to increase yield and pack out rates. Greenhouses also reduce crop damage from climate events and predation. BA commercial Greenhouse tunnels South Africa can be constructed in a range of sizes to suit both small orchards, nurseries and large agri-businesses.