Sale!

Hoklartherm Riga 4 Greenhouse 10×14

$4,899.00$6,868.00

Clear

Hoklartherm Riga 4 Greenhouse 10x14

Description

The Riga 4 is for the serious gardener with limited space. Its heavy-duty construction and twin-wall Polycarbonate glazing allow a problem-free growing all year long. This is a real greenhouse, not only a “season expander”. With 8mm UV coated Polycarbonate glazing on the sides and 10mm in the front and back, the Riga uses a thicker material that insulates better than a glass window in your house.

The Riga is designed, engineered and manufactured by Hoklartherm in Germany, where they have to deal with the drastically changing weather.

The “onion” shape provides no surface to snow or wind. Snow loads will just slide off the sides and severe winds blow over the greenhouse. The frame profiles are thicker or have a larger diameter than other greenhouses, which makes the construction stronger.

The large windows open and close automatically according to the temperature inside the greenhouse. Additionally, you can open the upper part of the Dutch barn style door to provide great airflow. The door is wide enough to push a wheelbarrow into your Riga 4.

Features & Benefits of Hoklartherm Riga 4 Greenhouse

  • 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
  • First-class insulation:
    • Heavy-duty rubber seals and silicon caulking to seal windows
    • High-quality construction with tightly fitted parts
    • R-value: 3.0
  • Door: 1x wide, heavy-duty Dutch barn style door (30in wide x 79in high), handle with key lock
  • Roof vents: 2x roof windows (40in wide x 24in length) with an automatic opener which works without electricity
  • 1x large rear wall window which allows for cross ventilation
  • Wind tolerance: 120 mph with 3-second gusts
  • Snow capacity: 30 PSF ground-snow load
  • Included in the Riga 4 Greenhouse Kit:
    • Profiles, glazing, rubber seals, and hardware
    • 1x 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)
  • Expandable: No
  • Frame color: Aluminum/silver
  • Side wall height (curve): 6ft 1in high near shelves
  • Peak height (interior): 7ft 6in
  • Floor space: 135 sq. ft.
  • Dimensions: 9ft 8in wide x 14ft long x 7ft 7in high
  • Assembly time: 2 people – 1 day; 3 people – 6-8 hours
  • 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 $8,000.

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 4 Greenhouse Premium Kit

If you want to use shelves and a base frame, the Riga 4 Greenhouse Kit will be the best choice.

Includes the following items:

  • Riga 4 Greenhouse
  • Foundation frame
  • 10in deep top shelf (attached to greenhouse side)
  • 25in deep regular shelf

Riga 4 Greenhouse Door Extension Kit

If you want to raise your door because you set your Riga 4 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 support@greenhouseemporium.com.

Features & Benefits

  • 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
  • First-class insulation:
    • Heavy-duty rubber seals and silicon caulking to seal windows
    • High-quality construction with tightly fitted parts
    • R-value: 3.0
  • Door: 1x wide, heavy-duty Dutch barn style door (30in wide x 79in high), handle with key lock
  • Roof vents: 2x roof windows (40in wide x 24in length) with an automatic opener which works without electricity
  • 1x large rear wall window which allows for cross ventilation
  • Wind tolerance: 120 mph with 3-second gusts
  • Snow capacity: 30 PSF ground-snow load
  • Included in the Riga 4 Greenhouse Kit:
    • Profiles, glazing, rubber seals, and hardware
    • 1x 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)
  • Expandable: No
  • Frame color: Aluminum/silver
  • Side wall height (curve): 6ft 1in high near shelves
  • Peak height (interior): 7ft 6in
  • Floor space: 135 sq. ft.
  • Dimensions: 9ft 8in wide x 14ft long x 7ft 7in high
  • Assembly time: 2 people – 1 day; 3 people – 6-8 hours
  • 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.

FAQs

Assembly & preparation

Does the Riga come with a base/foundation frame?

No. You can either purchase the foundation frame separately or purchase the premium kit that also includes shelves for just a little higher price.

What foundation/ground/footing do you recommend?

There are plenty of options for you to prepare the ground before setting up the greenhouse. If you choose to purchase the foundation frame, you don’t need a foundation. You only need to level the ground and add material of your choice. We usually recommend gravel, dirt, or pea rock. The foundation frame will go into a trench to provide more stability. For more details and more foundation options, please read the Riga XL Reference Manual (page 30ff, measurements are for Riga XL VI).

Do you recommend a cement foundation?

Cement foundations hold a lot of heat in the summer and a lot of cold in the winter. Therefore, we do not recommend a concrete slab.
You can, however, build a concrete footing (like a stem wall that is flush with the ground) and fill the inside with gravel, dirt, or pea rock.
You can also add the foundation frame as an additional accessory. This will work without a concrete foundation or footer.

How long does the greenhouse take to assemble?

Assembly time depends upon the number of people assisting, how many shelves are added, if a foundation frame is added, and on personal assembly skills. The assembly time takes from 6 hours to a day (or more) depending on these factors and does not include ground preparation time.

Where do I find the assembly instruction?

Assembly manuals can be found here: Riga Manuals. You can also check out the assembly videos.

Can the Riga be assembled in the winter, as in can the panels handle being “bent” during assembly when they are cold?

Yes, but everything will be stiff. It is recommended to keep the panels inside (warm) and only bring them out when needed during the assembly process.

Accessories

How does the automatic window opener work without electricity?

A special cylinder filled with paraffin oil expands and contracts in response to temperature changes. This pushes the window open when it gets hot inside and closes the window when it cools down. The temperature range is adjustable.

Can I install an electric fan?

Yes, simply cut the required hole with a utility knife in the polycarbonate glazing either in the back or front walls. No fan is included with Riga greenhouses but it can be added additionally.

What is the weight capacity for the Riga shelving (9″ and 15″)?

The shelf strength depends on the frame. If the frame that the shelving is attached to is too weak, the frame will bow outwards. In the Riga, 150lbs is about the maximum weight capacity.

Is a shade cloth required?

This is dependent on what you plan to grow. If you are planning to use the greenhouse to grow and house exotic plants during daytime temperatures in excess of 85-90º F, virtually any greenhouse will need some kind of shade cloth and or misting system in order to keep temperatures down.

Do Riga Greenhouses need a heat source for the winter?

The more plants you have, the more heat they will produce. So, it depends on how many plants you are planning to grow. In addition, it depends on what type of plants you want to grow, i.e. kale grows in cool temperatures, whereas tomatoes need more warmth. There might be times that the temperature may drop significantly for longer periods. Although the Riga provides great insulation, you have to decide whether you need a heater or not according to your own needs.

What heaters do you recommend?

This highly depends on the size of the greenhouse and how you want to use your greenhouse in winter. We offer some heaters here, but you may just check out a local hardware shop that provides more options. If you want to learn more about greenhouse heaters, read this guide first.

Structural questions

What is the snow rating of the Riga L and XL series?

The roof of the Riga greenhouses has no “shoulder” or ridge for snow to accumulate. Snow and debris simply slide down the roof. The Riga L & XL can withstand 30 PSL ground-snow load. In the event of continuous heavy snowfall, remove snow from the base of the greenhouse, creating a trench. This will allow new snow to slide off easily and not block sunlight from the sides and roof of the greenhouse.

What is the wind resistance rating?

Due to its unique roof slope, strong winds are diverted over the roof of the Riga greenhouses. Additional wind resistance is provided through the 4 lateral support bars, which span from the front to the back of the greenhouse. The Riga L & XL is adequate to support 120 mph of wind (three-second gusts).

Can the units be enlarged later if I need to expand the greenhouse?

No, they cannot. The roof beam and base profiles are one piece and cannot be extended.

Do the Riga greenhouses require maintenance?

No routine maintenance is required. It is recommended to check annually that all nuts, bolts, and screws are still tight.

Shipping

Where does this ship from?

Austin, Texas

Do you deliver to the house?

This product is delivered via LTL which is curbside delivery only. You will need to work with the driver to unload the contents of the crate, leaving the crate on the truck. The exception would be if you have a forklift or tractor with long forks available, which can be used with the liftgate to lower the entire crate to the ground. We recommend having a couple of people there for the delivery.

How long does it typically take for the shipment to arrive?

It usually takes about 2 weeks for your order to arrive. This unit ships from Texas. It takes 1-2 business days to package and then it ships to the shipping facility located nearest to you. The shipper then makes contact to schedule a delivery.

Due to the high demand during this pandemic, we are running low on products, and shipping companies take longer than usual. Please, keep this in mind when ordering. We will send you a follow-up email if there is a longer waiting time for your order.