Our non-engineered greenhouses extend your growing season and boost production. A semi-permanent hoop house lets you get a head start on spring or keep vegetables and fruits going into the late fall. They're also called high tunnels or cold frames, giving them three names by which they allow crops and seedlings to grow longer.
Browse our hoop houses, high tunnels and cold frames below. Choose from frames only or complete hoop house kits. They come in many sizes and shapes, including our all-purpose Caterpillar Hoop House Kit domed hoop house, arched high tunnel greenhouses and gable-style hoop houses. The frames are made of galvanized steel with poly film roof covers and soft walls, supported by durable ground posts. The largest cold frames even have heaters, air fans and motorized shutters to rival permanent greenhouses. Smaller high tunnels can be deconstructed for moving or storage as needed.
With great pricing and service from Greenhouse Megastore, you don't need to jump through a greenhouse hoop to have a quality structure. High tunnels are great for serious DIYers, specialty crop planters and small-scale professionals who need a low-cost growing area. Contact us Monday-Friday if you have questions or are interested in customizing a package to suit your crop needs.
A hoop house (or high tunnel) is a low-cost, semi-permanent structure made of arched metal or PVC hoops covered with plastic film, primarily used to extend the growing season by trapping solar heat.
A high tunnel is typically an unheated, passively vented structure with crops grown directly in the soil, whereas a greenhouse is a permanent structure that often includes active heating, cooling systems, and concrete foundations for year-round climate control.
A quality galvanized steel hoop house frame can last for decades (30+ years), but the UV-treated polyethylene plastic covering requires replacement every 4 to 8 years depending on maintenance and local climate.
Most bolt-together kits only require basic hand tools like a wrench/socket set, a cordless drill, a sledgehammer (for ground posts), and a measuring tape.
Yes, hoop houses are significantly cheaper to build, often costing just a fraction (typically $2–$8 per square foot) of the materials and labor required for a permanent, engineered greenhouse structure.
