The RIGA was specially designed with the home owner in mind - its shape allows for maximum inside head room, yet requires no eaves - requiring less structural material - making it easier to assemble. None-the-less this is likely the strongest greenhouse in its price range. No weather has ever destroyed any of their greenhouses other than tornadoes or hurricanes. RIGA XL (EXTRA LARGE) or the "onion" as the Germans like to call it, is the latest in a series of hobby greenhouses from Hoklartherm Germany's most respected sunroom and greenhouse manufacturer. The Extra Large unit with it 16 mm Triple Wall Polycarbonate Glazing was specifically developed to answer a growing demand for larger "hobby" greenhouses - with better insulation, stability, quality etc. usually found with commercial greenhouses. With the objective to still provide an unit which can be assembled without professional contractors.
Includes:
- 4 Large Roof Windows: 37.5" w x 39.5" long
- 2 Large Dutch Barn Style Doors: 37.5" w x 74" high
- 4 Automatic Roof Window Openers
Notable Features:
- Heavy duty construction: thick aluminum profiles, reinforced base, and 16 mm TWIN wall polycarbonate glazing
- First class insulation: K-value (heat loss) 2.3
- Warranty: Polycarbonate: 10 years, prorated after 5 years; Frame: 15 years
- Made in Germany
- RIGA XL uses only 16 mm Triple Wall Polycarbonate
- Great starter size for schools or as an extra large unit for the serious gardener
Accessories Included:
- Dayton "Big Red" Heater - 220 Volt - 13,000 BTU
- JD Manufacturing - 110 volt - 20" Exhaust Vent 3400 CFM
- JD Manufacturing - control, thermostat, single speed 115/230V 10A/60HZ
- Gama Sonic - Solar Light
- RIGA - 14' top shelf - 14" deep
- RIGA - 14' regular shelf - 25" deep
- 5 Heavy Duty Black Seed Trays
- "Big Red" Heater
- Exhaust Vent
- Set of 5 Metal Hooks: These are great for hanging lights, fans and flower baskets (heavier items)
- 10 Plastic Hooks: These snap into the grooves in the aluminum profiles (frame) and are used to attach twine/rope to, to support growth of tall plants (i.e. tomatoes or beans etc.)
Dimensions & Weights
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| Riga XL Professional Greenhouse Kit |
170" H x 228" W x 120" D |
335 lbs |
Hoklartherm:

Hoklartherm is a German based company whose motto is to build ideas out of metal and glass for your home, court and garden. For more than 20 years Hoklartherm has been developing and producing greenhouses, sun rooms, and roofing for swimming-pools, pavilions, terrace roofing, solar verandas and a lot more. Innovation and creativity is always of the utmost importance.
The company was established by Werner Hollander, a graduate in engineering, in August 1982. However, it was in 1978, when the first “thermo semicircular arch greenhouse” was erected in the garden of the Hollander family. This pioneer greenhouse was so magnificent that this design was quickly followed by many other greenhouses of this kind.
The additional design series and the continuous further development of the greenhouse range made HOKLARTHERM become the biggest manufacturer of high-quality leisure greenhouses in Germany.
General Shipping Information:
- Shipping EstimateView
- Stock Status:View
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Ships to:
- Ship Method:Truck Freight Delivery
- Upgrade Available?
No
- Shipping Restrictions:
None
Truck Freight Delivery Additional Information:
Self-Service Truck Delivery:A freight carrier delivers this item. We call it “Self Service” because you’ll need to move the package off of the truck yourself. You may want a friend or family member on hand for help.
Liftgate Services:Standard “Self-Service” Truck Delivery requires you to move your items off the truck without any help. For only $50, our delivery service partners can be contracted to perform “Liftgate Services”, and bring the item(s) to the ground for you. One “Liftgate Services” fee of $50 will include all the items in your cart.
Delivery Notes:
- Once your order is near, a rep from the shipping company will call and give you a 4-hour window to arrange for delivery.
- Sometimes freight carriers offer their own services. Once we send you your tracking info, you can call the carrier directly to get more info.
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