Riga Greenhouse Kit 7.8 ft. Wide with Twinwall Polycarbonate Panels and Aluminum Frame

The Riga ‘S’ is an excellent choice for gardeners seeking a year-round greenhouse that fits within a compact space. As the smallest model in the Riga line, it is both shorter and narrower than other Riga models while still offering several length options. It features 8mm twin-wall polycarbonate panels on its side walls and 10mm panels on its ends, providing exceptional insulation. Like all Riga models, its sloped side walls are reinforced with 13-gauge aluminum framing, making it capable of withstanding high winds, heavy hail, and thick snow loads. The greenhouse’s curved design naturally allows snow to slide off, making it a fantastic option for winter gardening in challenging climates.

The Riga is designed for easy assembly with a sturdy, rustproof extruded aluminum frame. Its unique "channel" design allows components to slide and fit together, reducing installation time and costs. Step-by-step assembly instructions are included with every structure to ensure a smooth setup process.

Built for durability, the Riga features the thickest twin-wall polycarbonate available in a backyard greenhouse, giving it the highest R-value of any hobby greenhouse on the market. This exceptional insulation makes it more energy-efficient and cost-effective to heat.

Most hobby greenhouses today use 4mm or 6mm polycarbonate panels, but the Riga offers superior 8mm twin-wall polycarbonate on the roof and side walls, while its end walls are reinforced with 10mm twin-wall polycarbonate. This advanced covering provides better insulation, keeping the greenhouse cool in summer and warm in winter. Its "onion" shape further enhances performance by allowing heavy snow to slide off effortlessly.

For accessibility and ventilation, the Riga ‘S’ includes an extra-wide 30” heavy-duty Dutch door with a keyed lock, allowing easy passage for wheelbarrows and gardening equipment. The structure also features an extra-wide 40” x 24” automated roof window and an oversized 30” x 42” gable-end window, maximizing the benefits of natural airflow and temperature regulation.

Riga Greenhouse Shade Kits are available for purchase separately. Fabricated with 50% Aluminet Shade Cloth and heavy-duty reinforcing tape sewn along all four edges and brass grommets installed every 2' around the perimeter for easy installation using rope or bungee cords.