Harvest more and extend your growing season by building your own greenhouse, shade house, hoop building or growing shelter using our high quality cold frames and high & low tunnels. We have many styles and configurations to choose from to help you enjoy gardening every month of the year. FarmTek cold frames and high tunnels greatly improve all of the vegetables that you grow, especially more delicate greens — exceed production with less space! Keep the growing environment ideal with fans, automatic shutters, pre-wired thermostats, and a vented heater inside your cold frame or high tunnel. We offer for our larger cold frames and high tunnels.