Dimensions | Approx Size: 10' × 26' × 7' |
---|---|
Sidewall | n/a |
Frame | Galvanized Steel - Heavy Duty, Rust-Resistant |
Color | Silver |
Covering | 6mm Double-Wall Polycarbonate Panels |
Door(s) | 2 |
Roof Vents | 0 |
End Vents | 2 - Manual, located above each door |
Side Vents | 0 |
Base | Can Be Installed with or without a base |
Foundation | No foundation required |
Warranty | 5 Year Manufacturer Warranty |
Manual | Included |

The Sigma 26 was designed with a focus on spaciousness and stability. This greenhouse is perfect for 3 or 4 seasons of growing, allowing you to harvest fresh fruits and vegetables well into the colder months. Our Sigma greenhouses are built to last, featuring a rounded design and creative construction that brings heavy-duty greenhouse engineering into your own backyard.
Feel confident knowing that the rust-resistant galvanized pipe frame is tough enough to withstand a variety of severe weather conditions – keeping your garden safe and sound throughout the year.
The Sigma 26 greenhouse is extremely pleasant to work in throughout the day due to the end-to-end airflow and the distinctive 7ft roof height. Strong and spacious: long-lasting construction, weather-resistant materials, and roomy design.
Sigma 26 ft. Wide Greenhouse Features:
- Wind resistant up to 65 mph for those living in gusty climates
- Comes with two doors (one at each end)
- Withstands a snow load of up to 3 feet (32 psf)
- Made with a heavy-duty galvanized pipe frame and 6mm double-wall polycarbonate panels
- Arched shape - so the wind, snow, and hail just slide off the sides.
- Extendable beyond 100ft - so you can expand your greenhouse when you're ready.
- 5-year warranty
Order by Phone
We understand that you may want to talk to an actual person instead of ordering online. Call us toll-free at 1-888-281-9337 to speak to a Sales Representative.
Free Shipping
This item ships free via Motor Freight Carrier - almost anywhere in the Continental United States!
On rare occasions addresses with limited access such as islands or major metropolitan areas (ie: New York City) may incur additional delivery fees; if so, you will be contacted to confirm the extra shipping cost before your order is processed. Shipments to Alaska or Hawaii qualify for free shipping to any West Coast port. Please contact us for special shipping rates from the West Coast to Alaska or Hawaii.
Motor Freight Agreement
- Full Size Semi: Your location must be able to accommodate a full size semi-truck trailer of up to 70ft. in length.
- Someone Must Be Present: You or someone else authorized must be present to unload the shipment. Exact delivery date will be arranged via phone by freight company.