Riga ‘S’ Greenhouses

Riga ‘S’ delivers the same German-engineered strength and insulation as larger Riga models in a compact footprint. Features 8mm side walls and 10mm twin-wall polycarbonate ends for year-round growing.

Riga ‘S’ Greenhouses

Riga ‘S’ delivers the same German-engineered strength and insulation as larger Riga models in a compact footprint. Features 8mm side walls and 10mm twin-wall polycarbonate ends for year-round growing.

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Why the Riga ‘S’ Is Built for Compact Year-Round Growing

The Riga ‘S’ delivers the same German engineering and insulation performance as the larger Riga models, just in a more compact footprint. Its curved design sheds snow and reduces wind resistance, while the thick twin-wall polycarbonate keeps temperatures more stable throughout the seasons.

Key features include:

  • 8mm twin-wall polycarbonate on the side walls
  • 10mm twin-wall polycarbonate on the front and rear ends
  • Heavy-duty anodized aluminum frame
  • Large roof vent with automatic opener
  • Oversized rear window and lockable barn-style door

The result is a strong, well-ventilated greenhouse that supports real year-round growing without taking up excess space in your yard.

Riga III 9x10 Greenhouse

Frequently Asked Questions

Riga S Greenhouses

How long does it take to assemble a Riga ‘S’ greenhouse?

Most people finish assembly in 6–8 hours with 2–3 people. The smaller size makes it faster than the wider Riga models. Site preparation and foundation work are separate and can add extra time.

Do I need a concrete foundation for the Riga ‘S’?

Yes. For dirt installations, the Riga ‘S’ requires the foundation frame. It can also be installed on a concrete pad, wood foundation, or stem wall. Proper anchoring is important in all cases for stability in wind and snow.

How well does the Riga ‘S’ handle snow and high winds?

Very well for its size. The curved design sheds snow and reduces wind load the same way the larger Riga models do. When properly anchored, it is engineered to handle significant snow loads and strong winds. Good anchoring is essential in exposed locations.

Do I need to heat a Riga ‘S’ greenhouse in winter?

It depends on your climate and crops. The 8 mm side walls and 10 mm end walls provide strong insulation, so many gardeners successfully grow cool-season crops with little or no heat. In colder regions or for warmer plants, a small heater plus thermal mass is usually enough to keep the compact space productive through winter.

What is the warranty on the Riga ‘S’?

The aluminum frame carries a 15-year limited warranty. The polycarbonate panels carry a 10-year limited warranty (typically prorated after 5 years). Extreme weather damage that would also affect other structures is generally not covered.

Why choose the Riga ‘S’ instead of a wider Riga model?

The Riga ‘S’ gives you the same German engineering, thick twin-wall polycarbonate, and snow/wind-shedding shape in a narrower, more compact footprint (7'8" wide). It’s ideal when yard space is limited but you still want true year-round performance and the same high-quality construction as the larger Riga greenhouses.