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Introducing our premium 20ft wide Gable style greenhouse kit, meticulously designed to provide optimal growing conditions for your plants while ensuring durability and longevity. Crafted with high-quality materials and precision engineering, this greenhouse kit offers a reliable solution for all your horticultural needs.


Key Features:


Sturdy Construction: Constructed with 16 gauge 1 5/8" diameter galvanized steel hoops, providing exceptional strength and stability to withstand varying weather conditions.


Reinforced Ground Tubes: Utilizes 13 gauge 1 7/8" galvanized steel ground tubes for added reinforcement and structural integrity, ensuring the greenhouse remains firmly anchored to the ground.


Purlin System: Includes three runs of purlins, strategically positioned to support the hoop structure and enhance load-bearing capacity, allowing for a more robust greenhouse framework.


Sway Bars: Equipped with sway bars to minimize lateral movement and improve overall stability, ensuring the greenhouse maintains its structural integrity even in windy conditions.


Channel Lock and Wire: Features a channel lock and wire system for easy and secure attachment of the 6mil 4-year clear polyethylene plastic covering, providing maximum light transmission while protecting your plants from the elements.


Versatile Ventilation Options: Offers optional roll-up side kits for efficient ventilation, allowing you to regulate temperature and humidity levels to create the ideal growing environment for your crops.


Customizable Endwalls: Choose from endwalls with doors for convenient access or without doors for a seamless design, tailored to suit your specific requirements.




Width: 20ft

Hoop Diameter: 1 5/8"

Hoop Gauge: 16

Ground Tube Diameter: 1 7/8"

Ground Tube Gauge: 13

Plastic Covering: 6mil 4-year clear polyethylene

Package Includes:


Galvanized steel hoops

Ground tubes


Sway bars

Channel lock and wire system

6mil 4-year clear polyethylene plastic covering

Optional endwalls with or without doors

Optional roll-up side kits for ventilation

Experience the unparalleled quality and performance of our 20ft wide Gable style greenhouse kit, designed to elevate your gardening experience and maximize your yields. Invest in your future harvests with confidence and reap the rewards of superior craftsmanship and innovation.


Note: the only thing you will need to finish house is double the length of your kit in base board. Most use a pressure treated 2x6 from local hardware store. 



  • Here at Northern Garden Supply we know that one size doesnt fit all. If there is a size your looking for. Or you have some other type of customiztion that you want to add to the house feel free to reach out to us @ 971-281-0428. We will be more than happy to help you along your greenhousse journey!

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