RIGA Small Polycarbonate Greenhouse

Sanctuary for the Passionate Grower
Crafted by Hoklartherm. Brought to you by South Table Sheds

Compact Greenhouse

The Riga 's' series is the ultimate compact greenhouse for year-round gardening in tough climates. Though the smallest model in the Riga lineup, it’s built with durability in mind, featuring highly insulative 8mm twin-wall polycarbonate panels on the sides and thicker 10mm panels at the ends. Its sloped walls, reinforced with rugged 13-gauge aluminum framing, are designed to handle extreme weather—whether it’s strong winds, pounding hail, or heavy snowfall. In fact, the curved design naturally sheds snow to keep your growing space protected. Whether you're overwintering vegetables or cultivating early blooms, the Riga 's' provides a reliable, space-saving solution for beginner and serious gardeners.

We offer three options in the Riga s series:

Riga 2s - 7 x 7'8'' x 7'1''    2 Panels

Riga 3s - 7 x 7'8'' x 10'6'' 3 Panels

Riga 4s - 7 x 7'8'' x 14'      4 Panels

Designed for the Passionate Soul

Finally investing in the greenhouse of your dreams or upgrading from a flimsy “season extender”? The RIGA Small Polycarbonate Greenhouse offers unmatched quality, resilience, and growing potential.

Why Choose RIGA s series?

•    Winter Warrior: With 8 mm twin-wall polycarbonate sides and 10 mm gable panels, this greenhouse offers superior insulation—the kind that keeps your plants cozy even as snow piles high.
•    Wind Whisperer: The elegantly curved roof isn’t just for show—it's aerodynamically designed to shrug off heavy wind and shed snow like a pro.
•    Ventilation Mastery: Two roof windows with automatic openers, an oversized rear window, and a classic Dutch barn-style door with key lock create a natural airflow system that reacts to temperature changes—no electricity needed.
•    Spacious Without Bulk: The RIGA’s unique design maximizes interior headroom while minimizing footprint and shading—like a greenhouse that thinks in three dimensions.
•    Space-Smart: Optional shelves hang from the ceiling—not walls—giving you more room for your garden to grow.

Precision Meets Backyard Ambition

Manufactured by Hoklartherm, a German based company and a greenhouse industry leader with over 30 years of experience, the RIGA greenhouse is the result of decades of engineering refinement. New to the U.S., but already proven in Europe, this model brings old-world craftsmanship to your backyard garden.

The smooth anodized aluminum frame, heavy-duty rubber seals, and UV-coated twin-wall polycarbonate glazing make it both sturdy and stunning, with the kind of longevity that means you'll be harvesting for years to come.

Comes As a Kit – Assemble the Dream

Don’t worry—this isn’t a mystery puzzle from the hardware store. Your greenhouse arrives as a ready-to-assemble kit, and with a friend (and maybe a celebratory lemonade at the end), you’ll have it up in about 6–10 hours. Just add your foundation and your green thumb.

Why Wait?

There’s a reason new and serious growers are upgrading to RIGA. With rising food prices, unpredictable weather, and a growing desire to eat clean, local, and organic—why wouldn’t you create your own controlled environment to thrive in?
These greenhouses don’t sit in stock forever—imported from Germany, they sell fast and ship in limited batches.

 

Optional Accessory Kit

Top Shelf 

• 10" wide size for TOP
• Length varies per greenhouse/size

Bottom Shelf

• 25" wide size for BOTTOM
• Length varies per greenhouse/size

Foundation Frame

• Foundation frame is buried in a trench when greenhouse is not anchored to concrete
• Available for all sizes of Riga Greenhouses (price varies by size/model)

Specifications

Side Walls: 8mm twin-wall polycarbonate (side walls)
Gable Ends: 10mm twin wall polycarbonate (gable ends)
Frame: 13 gauge aluminum extrusions

	Riga 2s	Riga 3s	Riga 4s
Area	54 sq. ft.	81 sq. ft.	108 sq. ft.
Length	7' (2 panels)	10'6" (3 panels)	14' (4 panels)
Width	7'8"	7'8"	7'8"
Peak Height	7'1"	7'1"	7'1"
Doors	1 Barn Style Hinged Door w/Lock	1 Barn Style Hinged Door w/Lock	1 Barn Style Hinged Door w/Lock
Door Size	2'6" W x 6' H	30" W x 72" H	30" W x 72" H
Windows	1 Roof Vent, 1 Rear Window	1 Roof Vent, 1 Rear Window	1 Roof Vents, 1 Rear Window
Window Openers	1 Automatic (Roof)	1 Automatic (Roof)	1 Automatic (Roof)
Window Size	3'5" x 2'1"	3'5" x 2'1"	3'5" x 2'1"

 

Packaging, Shipping and Delivery

Packaging

• Greenhouse ships in 3 boxes
• Full kit ships in  4 boxes

Shipping

• Freight transit is typically 7 to 10 days. 
• For more remote locations, it could be slightly longer.  If you need a greenhouse to ship sooner, let us know and we can usually push it out quicker.

Delivery

•  CURBSIDE DELIVERY.  Anything more than that – i.e. flatbed/forklift or up the driveway may incur additional charges.
• All our deliveries are trucks with a liftgate.  When needed we can request a flatbed/forklift but often not necessary.  If there is any concern, it is generally best to order a flatbed/forklift if available, but often not necessary.
• The carrier will call the customer for a delivery appointment when it reaches the destination terminal.
• The customer should be there to receive the delivery and notify us if there is any damage. 
• Do not refuse deliveries – we will send replacement parts. 
• Let us know asap if you do see damage. It will be quicker for us to send replacement parts.

 Assembly

• The greenhouse kit comes with an assembly guide
• South Table Sheds can recommend name/phone numbers of assembly technicians
• South Table Sheds can be hired for assembly in the Denver, CO area. Please contact us for more information.

Assembly Guide

Warranty

Limited Product Warranty – Polycarbonate Greenhouses

This product carries a limited warranty, which covers the following:

 

·        Aluminum frame and stainless steel hardware ­(up to 15 years from date of purchase)

·        Triple-wall polycarbonate glazing (up to 15 years from date of purchase) and twin-wall polycarbonate glazing (up to 10 years from date of purchase, prorated beginning 5 years from date of purchase)

·        Defects in material and workmanship when properly assembled using only manufacturer’s original equipment parts in accordance with manufacturer’s assembly instructions (up to 10 years from date of purchase)

 

Exclusions:

 

This warranty does NOT cover the following components, for which replacement parts may be provided at a reasonable cost:

 

• Operating parts such as pistons in automatic window openers
• Other accessories provided with the greenhouse which are breakable in ordinary use

 

The warranty does NOT cover damage resulting from any of the following:

 

• Excessive loads placed on the packed product and/or parts (beyond reasonable expectations)
• Glazing breakage caused by large hail, rocks or other projectiles (including rocks thrown by a lawnmower)
• Use of force, incorrect handling, or inappropriate use, neglectful use or assembly or maintenance, commercial use or use other than for personal or household purposes
• Alteration, painting, connecting, gluing, sealing or assembly not in accordance with the manufacturer’s instructions
• Extreme storms, wind, flood, fire, overaccumulation of snow load, or other extreme weather conditions

 

Snow Load Advisory:

 

Customers who purchased a polycarbonate greenhouse are expected to regularly clear snow accumulation from the roof of their greenhouse as overaccumulation may crush the structure.  This type of damage is not covered under this warranty.

 

 

 

Commencement and Transferability

 

This warranty commences from the date of purchase and is non-transferable. A dated proof-of-purchase must be presented upon request. Customers are advised to keep this product warranty and proof of purchase in a secure place as they will be needed to process any claims.

 

Claims Process:

 

Address your claim to the customer service department by phone or email. A photograph or sample of the defective part(s) may be required to expedite the resolution process. If needed, the customer will allow the manufacturer or its representative to access and/or examine the greenhouse and its parts at the original service location. After a claim has been settled the guarantee will continue to run to its original expiry date (the original date of purchase). Exaco will repair or replace the product at our discretion.

 

Customer Satisfaction:

 

Ultimately, we strive to make every customer happy. We will do our utmost to resolve any warranty related issues in a manner satisfactory to the customer.