Sigma DIY Greenhouse Kit 10 x 26 ft. with 6mm Double-Wall Polycarbonate Panels and Galvanized Steel Frame

The Sigma 26 greenhouse is designed for spaciousness, stability, and year-round growing, allowing you to harvest fresh fruits and vegetables even in colder months. With a durable, rounded design, it brings heavy-duty greenhouse engineering into your backyard, ensuring long-lasting performance. The rust-resistant galvanized pipe frame provides exceptional strength, allowing it to withstand severe weather conditions and keep your garden protected throughout the year. Its well-ventilated structure, featuring end-to-end airflow and a distinctive 7-foot roof height, creates a comfortable working environment.

Built for resilience, the Sigma 26 is wind-resistant up to 65 mph, supports a snow load of up to 3 feet (32 psf), and features two doors for easy access. Its arched shape allows wind, snow, and hail to slide off effortlessly, while the extendable design enables expansion beyond 100 feet as needed. Constructed with a heavy-duty galvanized pipe frame and 6mm double-wall polycarbonate panels, this greenhouse ensures durability and optimal growing conditions. Backed by a 5-year warranty, the Sigma 26 is a strong, spacious, and reliable choice for gardeners seeking a high-performance greenhouse.

Snow Load Weight of 32 psf (160 kg / m²)

Equal to 3 feet fresh snow layer or 1.5 feet packed snow layer and is maintenance free in the winter

Wind Resistant

Up to 65 mph (100 km/h)

Extendable & Customizable

This greenhouse can be extended with additional expansion kits (call to order)

This item ships via Motor Freight Carrier - almost anywhere in the Contiguous United States

Motor Freight Requirements

• The shipment must be delivered to a business or residence (a PO Box is invalid)
• The delivery address must be able to accommodate a tractor/trailer as much as 70' in length
• Someone must be present to receive and unload the shipment from the truck
• Shipments and/or locations requiring a lift gate, inside delivery, and/or with limited access may incur additional charges by the carrier

Please contact Greenhouse Megastore Customer Service at 1-888-281-9337 if you have any questions about delivery to your specific address so we can ensure the smoothest delivery possible!