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.
The original Sigma design features a traditional shape, durable galvanized steel frame, and expandable length. Built to handle snow, wind, and cold weather season after season.
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.
