Sigma 32

Sigma 32

Rated 4.8 out of 5 stars
6 Reviews

Approx Size: 10' × 32' × 7'

Picture a space in your own backyard that always feels perfect inside, no matter what the weather is like. A garden where gusty winds and icy snow can't affect even the most delicate of plants. A place bursting with new life year-round. A zen-like oasis where you can calmly start your day in the warmth and quiet.


Strong and spacious: long-lasting construction, weather-resistant materials, and roomy design.

  • Wind resistant up to 65 mph for those living in gusty climates.
  • Withstands a snow load of up to 3 feet (32 psf)
  • Made with a heavy-duty galvanized pipe frame and strong 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.
  • Maintenance-free means you have more time to focus on your garden. 
  • We offer a 5-year warranty because our greenhouse is heavy-duty and long-lasting.
Regular price $4,950 CAD
Regular price $5,450 CAD Save $500 Sale Sale price $4,950 CAD
Sold out

Have questions? Call us 1-877-669-1286
View full details

About Sigma 32

Take backyard farming to the next level with the Planta Sigma 32. This greenhouse was designed with heavy-duty materials that promote 3 or 4 seasons of growing, allowing for multiple harvests every year. In addition, the innovative engineering and tough construction we use means you can harness the power of a commercial  greenhouse in an attractive backyard design.

Exact size: 118.1 x 83.9 x 394.49 inches

The rust-resistant galvanized pipe frame means your greenhouse will be standing for years to come. It's tough enough to withstand moderate to extreme weather conditions, allowing your garden to flourish wherever you may live.

The greenhouse comes with:

  • two doors
  • two manual windows
  • the option to install multiple windows.

Stay comfortable and cool throughout the day thanks to the spacious design, tall 7ft roof height, and end-to-end ventilation.

Snow Load Up To 32 psf (160 kg / m²)
32 psf (160 kg / m²) is equal to 3 feet fresh snow layer or 1.5 feet packed snow layer and is maintenance free in the winter More About PSF
Wind Resistant up to 65 mph (100 km/h)
Sturdy greenhouse construction that resists winds up to 65 mph (100 km/h)
Extendable & Customizable
This greenhouse can be extended with additional expansion kits
Have questions about this product?
Ask a Question
Rated 4.8 out of 5 stars
Based on 6 reviews
Total 5 star reviews: 5 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
Customer-uploaded media carousel. Press left and right arrows to navigate. Press space or enter to open more details.
Slide 1 selected
6 reviews
  • TW
    Trisha W.
    Verified Buyer
    I recommend this product
    Location Illinois
    Rated 5 out of 5 stars
    10 months ago
    Excellent choice!

    I ordered the sigma 32 model in April ‘23. Fast shipping and no problems with the freight delivery. It is now September and it has been a little summer project putting together. Received all of the hardware with no missing parts, and there are a lot of them. Comes with assembly instructions that seem overwhelming at first, but once you match up your parts it’s not bad. Definitely at least a 2 man job. I live in Illinois and I’m betting this will be warm in to December. It will be exciting to see just how many more months I can get out of the growing season. I still need to purchase the vents at a later time but I love this greenhouse! It is the best value for your money I could find. I look forward to many years of use. With the 5 year warranty, I think it will last 10 years or longer. Thank you for such an awesome experience!!

    PG Profile picture for Planta Greenhouses Canada
    Planta Greenhouses Canada
    9 months ago

    Hi Tisha,

    It's great to know that the assembly went smoothly and that you're looking forward to an extended growing season. We appreciate your kind words and hope you enjoy your greenhouse for many years to come!

  • BF
    Brenda F.
    Verified Buyer
    I recommend this product
    Location Idaho
    Rated 5 out of 5 stars
    10 months ago
    Sigma 32

    So far so good! It's almost finished but not quite yet. It definitely takes time to put it together. I'm super happy with it and will probably be buying another one to add on to it next year. :)

    PG Profile picture for Planta Greenhouses Canada
    Planta Greenhouses Canada
    9 months ago

    Looking forward to helping you expand with another one next year! 🌱🏡

  • BF
    Bruce F.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    1 year ago
    Sigma 32

    Good quality structural materials. Took longer than I had thought to assemble but otherwise good. I had to back track a few times with the assembly.

    Some of the fittings/nut and bolts seem a bit flimsy so will be watching to see if they loosen off or break and am quite prepared to upsize them.

    Would recommend the Sigma to anyone (that knows how to use tools and has had experience building things)

  • RT
    Robert T.
    Flag of Canada
    Verified Buyer
    I recommend this product
    Location Alberta
    Rated 5 out of 5 stars
    2 years ago
    Buying from Planta was simple and efficient

    We installed our greenhouse in 2021, & in our first year we grew tomatoes, cucumbers, green beans, strawberries, peppers, broccoli, and brussels sprouts. The greenhouse extended our growing season till mid October with minimal added heat latterly. Our favorite thing about having a greenhouse is the ready supply of fresh and healthy food, some of which we preserved and some gifted to friends and neighbors. Looking forward to next season.

    Buying from Planta was simple and efficient. Everything arrived when scheduled and promised and follow up questions were promptly and courteously answered by Nick. We are really happy with our purchase even to the extent of adding a ten-foot extension in our first season. We can highly recommend Planta even here in the Alberta foothills with its strong chinook winds and frequent snow.

    We have very strong Chinook winds in this area and our greenhouse has so far stood up very well despite a close neighbour losing a large tubular shelter to the wind a few weeks ago. We love the automatic windows and with those and our automatic drip irrigation, regular maintenance is minimal.

    Another shout out to Nick for his friendly and prompt attention to our questions.

  • AD
    Adriane D.
    Flag of Canada
    Verified Buyer
    I recommend this product
    Location Nova Scotia
    Rated 5 out of 5 stars
    2 years ago
    We can't wait until we can buy a second greenhouse!

    We installed our Planta Greenhouse in 2021 and we grow vegetables. It changed our growing season by making it much longer.

    My experience buying from Planta was very good. Service and quality are excellent, installation manual could be better. Everything is tight fit. Perfect!

    My favorite thing about the greenhouse is that it's been sturdy in all the storms we get, blocks the sun perfectly, and stops plants from burning. We can't wait until we can buy a second greenhouse. No more outdoor gardens for us here! 

    To someone considering buying a Planta Greenhouse – I think it’s the best thing we ever did. Don't hesitate or buy a cheap take-off. This is good quality at a reasonable price. Could be Dutch!

Reviews LoadedReviews Added



Sigma 32 ships in these boxes:

  L, (in) W, (in) H, (in) Weight, (lbs) Quantity
Sigma Base 1 62 11 3 90 1
Sigma Base 2 77 23 3 92 1
Sigma Polycarbonate Base 83 44 3 55 1
Sigma Extension 77 17 4 58 3
Sigma Polycarbonate Extension 83 44 4 20 4


Greenhouses are amazing products, and they require special shipping and handling. That is the reason, we have been working diligently over the past year to secure preferential shipping rates for our customers. Most shipments across Canada and the US are between $250 and $450. 

  • We will contact you to confirm shipping price, based on your location and order size.
  • Shipping on most residential greenhouse orders is between $250 and $450, customers in remote areas may need to pay extra.
  • When you place your order, please make sure to enter the correct Phone and Address at checkout. You will be contacted by phone before the item is shipped. We cannot be responsible for deliveries to incorrect addresses.
  • As part of the delivery process, we require a contactable telephone number (for the courier company to contact you) before the item is shipped.
  • White glove delivery service isn't available. The greenhouse components are delivered in multiple boxes, the largest of which weighs 80lbs. The greenhouse will be delivered to your driveway. Please make arrangements to have the package moved to its installation location. 
  • We do not ship to PO Boxes, as in most cases you will need to sign for your item.  
  • Orders placed on weekends or public holidays will not begin processing until the next business day.