20′ Wide Straight-Wall Quonset Style Light Dep Greenhouse


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20’ Wide Hoop House Light Deprivation Greenhouse

The Fullbloom Quonset style blackout Greenhouse package is the most cost-effective, fully-automated blackout greenhouse system on the market. Our automated light deprivation packages make growing indoor quality plants hassle free by using top quality materials and our unique auto blackout system. Each greenhouse frame is made out of heavy duty galvanized steel and comes with the best quality components available. Our unique high efficiency designs allow us to pass the savings onto you.

Light deprivation is quickly becoming the go-to method of growing for good reason; growers can harvest 3-5 times per year and essentially turn their greenhouse into an indoor environment using the auto blackout mechanism. By limiting exposure to weather, humidity, excessive heat and cold, the flowers produced are often comparable to the quality of any indoor garden. Greenhouse growers save thousands of dollars in expenses every month by harnessing the sun. The cost of renting or building an indoor space is also offset by the greenhouse structure, which can be installed quickly and easily. Our light deprivation greenhouses truly give you indoor quality plants with the size and yield of an outdoor grow. Use the automated controls to set your black out periods and your environmental controls and forget the headache of remembering to pull tarps everyday.

Note: Not all items included in photos come standard. Contact your sales rep for details on package contents.


Automation is the pinnacle of light deprivation growing. When manually pulling tarps on and off a greenhouse multiple times per day, chances are that the timing is going to be occasionally incorrect. Those slight changes, even by just a few minutes, can cause flowers to lose density or even become hermaphrodites. Plants get confused when lighting schedules are altered, so most experienced growers suggest using automation to eliminate the guesswork.

Our complete light deprivation packages provided here include the galvanized steel greenhouse frame, translucent greenhouse poly, blackout poly (black on the inside, white on the outside), motors and an automation controller, as well as all necessary steel and hardware. Basically, everything but your ventilation and exhaust equipment. Speak to one of our sales representatives for a full package quote, including exhaust, ventilation, and winterized accessories. Your local environment and size of desired greenhouse will factor into what equipment will be recommended.

Another exciting feature of the auto blackout system is the opportunity for further automation. The included controller automatically takes care of rolling up the blackout poly on a timer. It also includes an internal thermostat that can work directly with ventilation equipment (like motorized intake louvers and exhaust fans) to control the internal temperature of the greenhouse from afar. Ask about our Wifi upgrade for the controller which allows users to modify and control greenhouse settings from a computer or smartphone!


Standard Quonset Style:

The Quonset style blackout greenhouse is only available in sizes 20 feet wide and 20-95 feet long. It has a center height of 12 feet and comes standard with 7 ft. straight sidewalls before the curve of the roof begins. The height and sidewalls can be adjusted downwards with this particular model if needed. Both endwalls are engineered to remain permanently blacked out. One wall contains the custom, pre-welded double black out doors (4’ x 8’ each) and the other is a solid endwall. The permanence of the endwalls makes it easy to mount fans and other equipment. Each bundle includes:

  • Pre-cut, pre-drilled galvanized steel framing.
  • 8 mil string-reinforced blackout poly.
  • Anti-drip poly comes standard.
  • Fully-automated greenhouse environmental controller.
  • Manual side roll-up setup.

Optional equipment includes exhaust fans, HAF (horizontal airflow) fans, motorized intake louvers, heating equipment, & more.


Manual Roll-up Sides (Clear Poly Only):

Open your greenhouse to the summer breeze on a clear day. Easily reach the exact plant you want to treat. With the included manual roll-up cranks simply adjust both sides of the greenhouse’s clear plastic to generate greater ventilation. Keep in mind that this option can only be used when the blackout poly is rolled up and not covering the sides.

  • Easy-to-use wind up tool.
  • Smoothly roll plastic up to desired height.
  • Clear plastic is secured to the galvanized steel roller bar, eliminating flyaway edges.
  • Includes 2 steel roller bars, 2 winding mechanisms and mounting bolts.


Blackout Plastic:

Our black and white 8 mil string-reinforced polyethylene is a film that is manufactured using a combination of the purest polyethylene resins. The finished product uses a black polyethylene skin on one side and a white polyethylene skin on the other. The skins surround a grid of polyester yarn and a final sheet of polyethylene, to form a three-layer product perfect for light deprivation purposes. The black side completely contains light, while the white side reflects heat.


System Requirements:

  • Needs 200 watts of power.
  • Equipped to run only AC power.


Shipping Notes:

Every customer should read our Common Questions and Shipping FAQs before ordering.