Hoop House, High Tunnel, Cold Frame


No matter what you call them, we have options to suit your needs.


Hands down the best bang for you buck when you're looking to install an enclosed growing space. These greenhouses feature sturdy steel frames and cost-effective plastic film as a covering.


The roll-formed steel featured in many of these structures is stronger than both square and round tubular steel and half the weight. Plastic covering is UV treated and guaranteed to last a full 4 years before recommended

Easy to Build

If you can turn a wrench, you can build one of these sturdy greenhouse structures! Featuring bolt together roll-formed steel and innovative covering installation hardware, these greenhouses can be put together in a weekend.


Whether you're a market gardener looking for valuable season extension at rock bottom pricing, or you are contemplating a range of low cost buildings, these non-engineered structures are highly versatile and adaptable to any growing conditions and crops.

As always, feel free to give us a call for some guidance.



    Hoophouse and High Tunnel Grow Structures

    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.

    Hoop House Greenhouse Packages

    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 . 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.

    Reach New Gardening Heights

    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.


    Do You Qualify for a Free High Tunnel?

    The USDA's NRCS program provides grant money for qualifying individuals and
    businesses with the intent of installing a high tunnel for agricultural purposes.
    Learn More