Sigma 20' Greenhouse
Sigma 20' Greenhouse
Sigma 20' Greenhouse
Sigma 20' Greenhouse
Sigma 20' Greenhouse

Sigma 20' Greenhouse


$3,200.00 Regular price

  • In stock - departs in 1-2 business days
  • Inventory on the way

Works with

Dimensions Approx Size: 10' × 19.5' × 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 Planta Sigma 20 is an urban gardener's dream come true. The quality heat-capturing materials allow for 3 or 4 season gardening, meaning you'll be able to harvest delicious fruits and vegetables beyond the outdoor growing season. Additionally, the rounded design is incredibly spacious, giving you the room to make the most out of your backyard garden.

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 20 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 20 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.

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