Hoklartherm Riga 5 Greenhouse 10×18
If you are looking for a greenhouse large enough to double as extended living space or to grow plants year round, the Riga 5 from Hoklartherm stands out for this size and class. This gothic-arch greenhouse comes equipped with convenience features including automatic roof windows that open without using electricity.
With German engineering and a special “onion” shape, this greenhouse can withstand heavy snow, harsh wind, and it will look great doing it. The moderate footprint will not take much space in your landscape while offering great conveniences, such as plenty of headroom for vertical planting, a door large enough to push a wheelbarrow through it, and a big rear wall window for more air flow. With an optional premium kit to include shelving for all your plants, you won’t miss anything to start your greenhouse garden.
The Riga 5 Greenhouse features durable UV-protected 8mm and 10mm twin-wall Polycarbonate for great insulation in the harshest climates. The heavy-duty rubber seals between framing and panels won’t let in wind, so it’s easier to keep a steady temperature.
This greenhouse will give you the flexibility you need to tend to your greenhouse garden all year round. It can also be used to simply extend your growing season if you choose not to utilize the year-round capabilities.
Features & Benefits of the Riga 5
- Sturdy “onion”-shaped construction that withstands large amounts of snow and strong winds
- Sidewall material/thickness: 8mm UV-coated twin-wall Polycarbonate
- Gable material/thickness: 10mm UV-coated twin-wall Polycarbonate
- Frame material: Smooth finished anodized aluminum frame/profiles
- First-class insulation:
- Heavy-duty rubber seals and silicon caulking to seal windows
- High-quality construction with tightly fitted parts
- R-value: 2.0
- Door: 1x wide, heavy-duty Dutch barn style door (30in wide x 79in high), door handle with key lock
- Roof vents: 4 roof windows (40in wide x 24in length) with an automatic opener (works without electricity)
- 1x large rear wall window (30in wide x 42in long) which allows for cross ventilation
- Wind tolerance: 120 mph with 3-second gusts
- Snow capacity: 30 PSF ground-snow load
- Included in the Riga 5 Greenhouse Kit:
- Profiles, glazing, rubber seals, and hardware
- 4x roof vent with automatic opener
- 1x barn-style door
- 1x rear wall window
- Assembly instructions (also available here)
- Optional accessories:
- 6” high foundation frame: If you add this, you don’t need a concrete or wooden footer. This foundation frame will attach to the bottom of the greenhouse frame and goes into a trench in order to anchor the whole greenhouse.
- Premium kit: See details below
- Door extension kit: Set your greenhouse on a 20-inch stem wall. This kit gives you the missing pieces of Polycarbonate (+ profiles) that go above the doors. It includes 2x extensions for both doors.
- Rainwater gutter system: No (not possible because of the greenhouse shape)
- Stem wall: Supported by manufacturer (up to 20in; need to order a Door Extension Kit)
- Expandable: No
- Frame color: Aluminum/silver
- Sidewall height (curve): 6ft 1in near shelves
- Peak height (interior): 7ft 6in
- Floor space: 165 sq. ft.
- Dimensions: 9ft 8in wide x 17ft 6in long x 7ft 7in high
- Assembly time: Min of 3 people – approx. 1-2 days, with 4 people – approx. 6-12 hours (we highly recommend 4 people)
- Warranty:
- Twin-wall Polycarbonate: 10 years (prorated after 5 years)
- Frame: 15 years
- Made in Germany
- Shipping information: Greenhouse ships in 3 boxes, premium kit ships in 4 boxes. This product is delivered via LTL which is curbside delivery only. The driver will be using a pallet jack and liftgate to slide the crate off and will need help from the customer with the unloading of the framing cartons. We recommend having a couple of people there for the delivery.
The RIGA is attractive and beautiful to look at – fits well into an upscale garden setting.
With a combination of strong materials and durable hardware, the Riga is by far the strongest greenhouse of its size under $10,000.
Made in Germany with 30 years of experience!
The Polycarbonate glazing on the Riga is German made and believed to be of superior quality than the much more common Polygal or GE glazing.
One major advantage of the Riga’s construction method is that the frame profiles are permanently attached to each other, and won’t come loose over time due to wind pressures. For a better anchoring in the floor, you can add the heavy-duty foundation frame.
Riga 5 Greenhouse Premium Kit
If you want to use shelves and a base frame, the Riga 5 Greenhouse Kit will be the best choice.
Includes the following items:
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- Riga 5 Greenhouse
- Foundation frame
- 10in deep top shelf (attached to greenhouse side)
- 25in deep regular shelf
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Riga 5 Greenhouse Door Extension Kit
If you want to raise your door because you set your Riga 5 on a stem wall, you can buy a door extension kit. It will raise the height by 20 inches.
If you need more shelves or another combination of accessories, please, don’t hesitate and call or send us an email at [email protected].