SKU: 29490839269

6x12 Polycarbonate Greenhouse with Twin-Wall Insulated Panels

$2076.75 $2307.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

6x12 Polycarbonate Greenhouse with Twin-Wall Insulated PanelsLarge 6x12 Greenhouse with Superior Thermal Control for Australian Conditions 6mm Twin Wall Polycarbonate for Year Round Insulation This 6x12ft greenhouse is built with 6mm premium grade twin wall polycarbonate a high performing material that insulates better than glass. It helps reduce heat loss in winter and prevents overheating in summer, keeping your plants protected across all seasons. Matt Black Powder Coated Frame for Structural Integrity The

Large 6x12 Greenhouse with Superior Thermal Control for Australian Conditions

6mm Twin-Wall Polycarbonate for Year-Round Insulation

This 6x12ft greenhouse is built with 6mm premium-grade twin-wall polycarbonate — a high-performing material that insulates better than glass. It helps reduce heat loss in winter and prevents overheating in summer, keeping your plants protected across all seasons.

Matt-Black Powder-Coated Frame for Structural Integrity

The aluminium frame is powder-coated for rust resistance and long-term durability. Designed to support the full 12ft span, it delivers strength and rigidity while maintaining a clean, modern look suitable for any garden or backyard.

New Zealand-Made, Assembled in Australia

Winter Gardenz greenhouses are manufactured in New Zealand to suit our climate and are assembled and warehoused in Australia. You get region-specific engineering with fast local delivery and Australian-based customer support.

Extended Space for Ambitious Home Growers

At 1972mm wide x 3844mm long, this size provides generous internal room for crop rotation, propagation trays, or custom shelving layouts. With 4 roof vents included, it also offers improved airflow — ideal for regulating internal humidity and temperature.

  • Dimensions: 1972mm (W) x 3844mm (L) x 2360mm (H to ridge)
  • Height to gutter: 1620mm
  • Glazing: 6mm twin-wall polycarbonate
  • Frame: Matt-black powder-coated aluminium
  • Roof vents: 4 included for improved ventilation
  • Wind Rating: Up to 150km/h when installed to specification

Download Installation Resources

To make installation easier, we’ve included both a detailed foundation plan and a general guide. These documents will help you set up your greenhouse safely and securely.

Download Foundation Plans Download General Foundation Guide

Recommended Accessories for the 6x12ft Greenhouse

Customize your greenhouse for maximum efficiency and comfort with these popular upgrades:

✅ 4x Automatic Vent Openers

✅ 2x Greenhouse Louvre Vent Kit

✅ 1x 12ft 3-Tier Adjustable Greenhouse Shelving

✅ 1x 6×12ft Shade Cover Kit

✅ 1x Aluminium Mesh Screen Door

✅ 1x Extended Top Door Rail for 6ft Greenhouse Models

Please note: Greenhouses can only be delivered to your nearest Mainfreight Depot.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29490839269

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4.5 ★★★★★
Based on 13 reviews
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Product Reviews
M
Verified Purchase
mrcricket
Grantham, US
★★★★★ 3
Packaging contents
Color: Grey, Size: 34"- 3 Panel
Item is as described however this one appeared to be open and some parts possibly used. Example pole packaging mislabeled one had the letter K as a part there is no letter K item in the instructions. Another pole part had a taped on letter A which is completely different from the others thus indicating that it was opened or substituted. Finally after the partition was completely put together one of the bottom screw connection anchors came out making the partition unable to stand. I'm going to have to rig something up in order to get the anchor connected to the bottom panel. In closure the partion could be very acceptable and do the job if it was new and parts labeled correctly. I have pictures of all parts and packaging errors. Would buy again if new. I'm going to pursue some kind of compensation.
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Reviewed in the United States on March 15, 2026
W
Verified Purchase
Wendy Gray
Pawtucket, US
★★★★★ 5
Great product
Color: Grey, Size: 34"- 6 Panel
This room divider is great. It was easy to put together. I was worried about it standing up right and not falling over. It stays up perfectly and is very easy to move and adjust to the shape I want it. Also, from one of the videos I watched it looked like the fabric was puckered in the panels. That is not the case at all. The fabric fits tightly in each panel for a nice smooth look. I would definitely recommend this and would buy again if needed.
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Reviewed in the United States on March 3, 2025
A
Verified Purchase
Alex caine
Lowell, US
★★★★★ 1
Awful.
Color: Black, Size: 22"- 4 Panel
Easiest one star review ever. I'm writing this with bloody fingers from assembling this. Multiple poles were bent, none of the pole connectors worked, the hex wrench broke in my hand, the screws didn't really go into the holes provided (I had to get a friend with a press drill to widen the holes to make it work), there are sharp edges on the poles where there is a seam, and doesn't look that great once assembled. Easy do not buy, the only reason I didn't return is because it would have been tough to disassemble the half I got through in the first 5 hours of building (mostly spent fixing the product delivered)
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Reviewed in the United States on December 30, 2025
C
Verified Purchase
C.L.
Draper, US
★★★★★ 5
Excellent privacy shade.
Color: Coal Black
This delivered on exactly what it promises. So happy with the quality for the value. The shades are a fabric, nylon like, that are attached with a pocket on one end and velcro that adheres around the bar on the other. This was incredibly easy and straightforward to put together. Every piece was clearly labeled, coordinated with the instruction sheet, and fit perfectly. Honestly, I wasn’t planning to leave a review but I was so impressed by how clearly labeled and well explained the instructions were that I felt compelled to note it. Especially for anyone who doesn’t like putting things together, or is used to subpar instructions, this is leagues above the rest. It’s such a simple build anyway, but after buying so many things that barely fit as they should, this stands out. It is lightweight and easy to move. Offers privacy when opened, then can be folded out of the way. It looks exactly as pictured. No complaints, it’s a solid item and worth the price.
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Reviewed in the United States on April 9, 2026
C
Verified Purchase
Courtney A.
Omaha, US
★★★★★ 5
Decent quality for the price
Color: Grey
Decent quality for the price. Other privacy screens were extremely out of my budget, but this looks and works just fine- I just needed something simple to place behind my couch to hide some clutter. It took me about a half hour to assemble, but it was easy enough. It might be due to my carpeting, but I don't trust that the screen would be stable enough to stand freely without falling. Thankfully my plan all along was to wedge the screen between the couch and a box of clutter anyway, so for me it works as l'd planned!
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Reviewed in the United States on April 10, 2026

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