Exaco Riga S Greenhouses


  • Great snow & wind performance
  • Perfect for smaller spaces
  • 8mm & 10mm twin-wall polycarbonate
  • Sturdy, insulated structure
Riga 4S Greenhouse in a backyard with teh top part of the Dutch door open
Exaco Riga S Greenhouses

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The Riga S Greenhouses are perfect for the passionate gardener who demands quality, durability, and functionality without needing vast space. Crafted with precision by Hoklartherm in Germany, a country renowned for its engineering excellence and challenging weather conditions, the Riga S is built to thrive through the seasons. If you’re looking for a space-saving year-round growing environment, keep reading.

Sizes for Every Space

Available in three compact sizes, the Riga S is perfectly suited for smaller backyards or gardeners looking to maximize their growing area without the footprint of a larger structure. Despite its modest dimensions, the Riga S does not compromise on the internal growing environment, providing ample space and conditions for a wide variety of plants.

Hoklartherm Riga 2s Greenhouse 7.8x7 for serious gardeners with a lack of space
Riga 2s (8×7)
Riga 3S Greenhouse in a backyard, mountains in the background
Riga 3s (8×11)
Hoklartherm Riga 4s Greenhouse 7'8"x14' front view, outdoor setting, upper door open
Riga 4s (8×14)

Durability Meets Design: The Riga S features a gothic-arch shape that prevents snow and wind from gaining a foothold. This design ensures snow easily slides off and strong winds are smoothly redirected.

Riga Greenhouse surrounded by snow - Strong enough to withstand heavy winters

This design, coupled with frame profiles that are thicker and of larger diameter than typical greenhouses, provides unmatched structural integrity against the elements.

Superior Materials for Supreme Insulation

With sidewalls featuring 8mm UV-coated twin-wall polycarbonate and gables of 10mm thickness, the Riga S offers exceptional insulation, outperforming even the glass windows of a home. This superior insulation is further enhanced by heavy-duty rubber seals and weather seals around the windows, achieving an impressive R-value of 2.0.

The varying thickness of the polycarbonate serves a dual purpose. The thinner 8mm polycarbonate on the sidewalls allows for more light transmission, crucial for the growth and health of plants, especially in the higher latitudes. Meanwhile, the thicker 10mm polycarbonate on the gables provides added durability and strength, ensuring the greenhouse can withstand harsh weather conditions.

Additional Features & Benefits

Easy Access & Superior Airflow: Featuring a wide Dutch Door for easy access, secured with a key-lock handle. By opening the top of the Dutch Door along with the large rear wall window, it creates an efficient airflow system throughout the greenhouse.

Featured image showcasing the Dutch Door and large rear wall window on the Riga Greenhouses
Auto opener installed on the roof vent on a Riga Greenhouse

Automatic Roof Vent: Facilitates air circulation without the need for electricity.

Robust Construction: The Riga S is crafted with an anodized aluminum frame featuring a smooth finish for durability. It is enhanced by stainless steel connectors and angles that will not rust or corrode, ensuring long-term resilience. Additionally, the frame profiles are designed to interlock securely, preventing them from coming loose over time due to wind pressures.

Detail view of a connecting plate of a Riga S Greenhouse
Featured image of the foundation frame that will be buried in the ground for securing the Riga Greenhouses to the ground

Optional Accessories: Elevate your Riga S experience with a selection of optional accessories, including a 6” high foundation frame for easy installation without the need for concrete, a premium kit for additional enhancements, and a door extension kit for increasing the height by setting it up on a stem wall.

Designed for serious gardeners who cherish quality and efficiency, the Riga S Greenhouse stands as the pinnacle of compact greenhouse design. Its robust construction, exceptional insulation, and innovative features set it apart as the strongest greenhouse of its size.

Made in Germany with 30 years of experience!

The Riga S Greenhouses are manufactured by Hoklartherm, a renowned German brand with over 3 decades of greenhouse crafting experience. They specialize in greenhouse designs for challenging climates. With a greenhouse made by Hoklartherm, you can rest assured that it will last you for decades.

Watch this video to get some assembly tips for a Riga S Greenhouse!

The Riga 3s Greenhouse: A Closer Look