Sigma Gen II (9.8 ft wide) – The original Sigma Greenhouse design, featuring a classic peaked roof, heavy duty galvanized steel frame, and expandable length for flexible, long term growing in tough climates.
A compact 6.5 ft wide greenhouse with a classic look and heavy duty build. The galvanized steel frame and premium polycarbonate panels stand up to snow, wind, and cold winters, with expandable length to grow as you do.
At 8.2 ft wide, the Sigma Medium offers generous growing space with modular length extensions. Built from galvanized steel and high quality polycarbonate, it performs reliably in harsh weather conditions.
The 9.8 ft wide Sigma Gen III delivers maximum growing space with a reinforced galvanized steel frame and premium polycarbonate panels. Strong, expandable, and built for demanding climates.
Sungrow greenhouses have a modern, heavy-duty, bell-shaped design made for backyard growing in harsh climates. They're rated for 6 ft (75 psf) of snow and 65 mph wind, with a 10-year warranty.
