Sigma 32

Sigma 32

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.

Features

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

  • 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 160 kg/m2 (32 psf), ideal for areas with moderate snowfall.
  • Made with a heavy-duty galvanized pipe frame and 6 mm 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.
  • 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.
  • Access to our private Facebook group to connect with and learn from other greenhouse owners.
Regular price $4,200 USD
Regular price $4,700 USD Save $500 Sale Sale price $4,200 USD
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Have questions? Call us 1-877-669-1286
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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.

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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
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Wind Resistant up to 65 mph (100 km/h)
Sturdy greenhouse construction that resists winds up to 65 mph (100 km/h)
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Extendable & Customizable
This greenhouse can be extended with additional expansion kits
 
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4.7
Rated 4.7 out of 5 stars
Based on 7 reviews
Total 5 star reviews: 5 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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QualityRated 5.0 on a scale of 1 to 5
DurabilityRated 5.0 on a scale of 1 to 5
Wind and Snow ResistanceRated 5.0 on a scale of 1 to 5
InsulationRated 5.0 on a scale of 1 to 5
InstallationRated 3.0 on a scale of 1 to 5
Customer ServiceRated 4.3 on a scale of 1 to 5
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7 reviews
  • RW Profile picture for Roby W.google logo
    Roby W.
    Verified Reviewer
    I recommend this product
    Rated 4 out of 5 stars
    3 months ago
    Heating for Sigma 32 in Winter!

    Hi,

    I'm from Moncton, NB. I'm planning to get a greenhouse in my backyard. I'm curious if I need to use external heating system during winter session for Sigma 32? If so, what should I use? Thank you!

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    3 months ago

    Hi Roby,

    For a Sigma 32, you would need one or two of our heaters: https://plantagreenhouses.com/products/2-in-1-phoenix-greenhouse-heater-cooler-2800-w-9554-btus

    But it largely depends on how cold your winters or nights get. If you plan to use it year-round, especially in colder climates, you may need additional heating to ensure optimal temperatures.

    Please note that our heaters require a 240v outlet, similar to what you would use for a stove or dryer. Some of our customers opt for alternative heating solutions like propane or gas heaters.

    For more tips and ideas on greenhouse heating, check out our blog: https://plantagreenhouses.com/blogs/learn/tagged/heating-cooling

    Feel free to reach out to info@plantagreenhouses.com if you have any more questions!

  • TW
    Trisha W.
    Verified Buyer
    I recommend this product
    Location Illinois
    Rated 5 out of 5 stars
    1 year 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
    Planta Greenhouses
    1 year 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
    1 year 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
    Planta Greenhouses
    1 year 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
    2 years 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.

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Videos

Shipping

Sigma 32 ships in these boxes:

  L, (in) W, (in) H, (in) Weight, (lbs) Quantity
Sigma Base 1 80 11 4 93 1
Sigma Base 2 78 24 3 93 1
Sigma Polycarbonate Base 82 44 4 58 1
Sigma Extension 78 21 3 63 3
Sigma Polycarbonate Extension 82 44 2 31 4
      Total weight: 557  

 

Planta Greenhouses is dedicated to deliver your order promptly, so you can begin using your greenhouse products right away.

Because greenhouses are packaged in large boxes, they have unique shipping requirements, including: 

  • We will contact you to confirm shipping price, based on your location and order size.
  • Shipping on most orders is between $250 and $450. Deliveries to remote areas may cost 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.
  • We will make every effort to ship your order in the fastest possible manner, and by the mode of transportation that you specify; however, in the event of no specific instructions, we will use our judgment and ship the best, fastest and most economical way. We are not responsible for delayed delivery due to conditions beyond our control.
  • We do not ship to PO Boxes, as in most cases you will need to sign for your item. 
  • 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. 
  • Orders placed on weekends and public holidays will be processed the next business day.

FAQs

Residential Greenhouses

Are there doors on both ends of the greenhouse?

Yes! All of our Sungrow models come with manual doors and a manual window above the door on both ends of the greenhouse.

Do you have lean-to greenhouses?

Unfortunately, we do not have any lean-to greenhouses available at this time.

Do you make custom size greenhouses?

All of our products come pre-packaged by the manufacturer and can only be customized in length (6.5' extension). However, the height of the greenhouse can also be increased if placed on a base (up to 5ft above the ground)

How is the greenhouse anchored to the ground?

Every greenhouse kit comes with optional legs that can be dug directly into the ground. The amount of legs included depends on the greenhouse size.

What is the frame made of?

The greenhouse frame is made out of heavy-duty galvanized steel.

What polycarbonate panels are used for residential greenhouses?

We use 6mm heavy-duty, double-walled polycarbonate panels with a UV-protected outside layer for our Residential Greenhouses.

What type of base/foundation is the best for me?

There are several different types of greenhouse bases, information, and pictures posted by our customers on our Customer Stories page and our Planta Facebook page. Additionally, you can learn more about "Types of Greenhouse Bases - With Pros & Cons of Each" on our blog.

Roof Ventilation Windows

Can I add windows for my greenhouse later?

Roof ventilation windows work as an add-on and can be installed only once the greenhouse installation is complete. Windows can be added later as well.

How do the Automatic Ventilation Windows work?

Our Automatic Ventilation Windows do not require any batteries or electricity. A heat-activated mechanism will open/close the window once a certain temperature is reached.

How many roof ventilation windows are recommended for the greenhouse?

It is strongly recommended to go with an even amount of roof ventilation windows. This is so you can place at least one on either side of the greenhouse. The amount of windows required depends on the greenhouse size, the climate you are in, and the types of plants that will be grown inside the greenhouse.

What are the opening and maximum opening temperatures for the Automatic Windows?

The opening temperature is between 17 °C and 25°C (62.6°F to 77°F), while the maximum opening is at 30 °C (86°F).

Sigma Greenhouses

What are the snow load and wind resistance on the Sigma models?

Sigma models can hold a snow load weight of 32 psf (160 kg / m2) or 3ft of fresh snow on top of the greenhouse. The wind resistance is 65 mp/h (100km/h).

Sigma Installation

Is there support after purchase?

Absolutely! Our after-sales customer service team is available to answer any questions and support you on your greenhouse journey. You can fill out our contact form or give us a call at 1 (877) 669-1286.

What resources are available to assist with greenhouse installation?

We offer several resources to help you with the installation process:

  1. Bilt App: Downloadable on the Apple Store and Google Play, it provides digitized step-by-step instructions.
  2. YouTube videos: A series of detailed video tutorials to guide you through the installation process.
  3. Printed Manual: Comes included with your greenhouse.
  4. Blog: Explore our blog for valuable insights such as "Expert Advice: 9 Tips For Installing Sungrow Greenhouses With Ease!"
  5. Customer-Only Facebook Group: Connect with other customers for valuable installation tips.

If you still need assistance, our customer service is ready to help via phone or email.

What type of base/foundation is the best for me?

This can vary depending on your location, gardening plans, and desired aesthetic. To better understand the different options available, you can find several different types of greenhouse bases, information, and pictures posted by Planta Greenhouse owners on our Customer Stories page and our Planta Facebook page. Additionally, you can learn more about it on our Greenhouse Bases blog.

Customization Options

Can I add my own vents, fans, heaters, and lights?

Of course! The polycarbonate is very easy to work with, and the galvanized steel frame is strong enough to support any additional accessories.

Can I get a longer greenhouse?

Most of our residential and commercial greenhouses are extendable up to 100ft. Learn more about our extension kits for both the Sungrow and Sigma models.

How can I customize my greenhouse?

The customization possibilities are truly endless with a Planta Greenhouse. To help you get started, take a look through “16 Ways to Supercharge Your Greenhouse” on our blog. 

Is hanging plants, heaters, and hammocks safe from my greenhouse frame? How much weight does it handle without affecting the guarantee?

It is safe to hang plants and accessories on a Sungrow greenhouse since each internal reinforcement arch can withstand up to 100 lbs/45.3 Kg. On the Sigma series, you can pre-drill the holes on the framing and hang small things. We would not suggest hanging anything heavier than 5 – 10 lbs / 2.2 – 4.5 Kg per arch.

May I heat my greenhouse with fire pits or similar?

You can use any heating source inside, like electricity, gas, propane, and even wood. It may be tricky to heat with wood, as you want to ensure that you keep the stove/pit away from the panels to prevent them from melting or burning if they are too close to the fire source. In this case, the customers ideally would want to come up with an exhaust system, making sure it’s not in contact with the panels, for being a flammable material.