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6x20 Polycarbonate Greenhouse with Twin-Wall Insulated Panels

6x20 Polycarbonate Greenhouse with Twin-Wall Insulated Panels

$7,915.00 - $7,915.00
$7,915.00
$7,915.00 - $7,915.00
$7,915.00

Please fill out the linked form and we’ll send you a shipping quote within 48 hours.

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Large 6x20 Greenhouse with Premium Insulated Polycarbonate for All-Season Growing

6mm Twin-Wall Polycarbonate for Exceptional Thermal Control

This 6x20ft greenhouse is clad in 6mm premium-grade twin-wall polycarbonate — an ideal material for reducing heat loss in winter and excess heat gain in summer. Its insulating structure helps create a stable environment, especially beneficial for temperature-sensitive crops.

Sturdy, Rust-Free Frame with a Bespoke Architectural Finish

The modern matt-black aluminium frame is powder-coated to resist rust, corrosion, and UV exposure. Designed for strength over longer spans, it maintains a clean, architectural look with the durability needed for long-term outdoor use.

Manufactured in New Zealand. Warehoused and Supported in Australia.

Winter Gardenz greenhouses are made for Australasian conditions — designed in New Zealand and assembled here in Australia. You’ll get local support, fast delivery, and clear instructions — no international wait times or confusing manuals.

Expansive Space and Airflow for Committed Growers

At 1972mm wide x 6386mm long, this greenhouse offers extensive internal room for multi-zone setups, raised beds, or large-scale propagation. With 8 roof vents included, it delivers excellent airflow and improved climate control across the entire structure.

  • Dimensions: 1972mm (W) x 6386mm (L) x 2360mm (H to ridge)
  • Height to gutter: 1620mm
  • Glazing: 6mm twin-wall polycarbonate
  • Frame: Matt-black powder-coated aluminium
  • Roof vents: 8 included for 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 6x20ft Greenhouse

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

✅ 8x Automatic Vent Openers

✅ 4x Greenhouse Louvre Vent Kit

✅ 2x 10ft 3-Tier Adjustable Greenhouse Shelving

✅ 2x 6×10ft 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

Winter Gardenz Greenhouses are dispatched from Victoria, and shipping rates are suburb dependent. If you'd like a shipping quote, please email us at info@greenmyspace.com.au. Send us your name and address details, and we'll follow with obligation free invoice. The invoice will link you back to our website where you can check-out with your preferred method of payment. Shipping rates calculated on our website may be incorrect. If you check-out without receiving a shipping quote from us first, we may contact you to rectify shipping costs before we send your greenhouse.

Green My Space ships from warehouses in multiple states across Australia including Perth, New South Wales, and Victoria. Please be advised that when ordering multiple items they may come from different warehouses and with different couriers. You will be sent multiple tracking numbers if this is the case.

If your items are in stock, the order will generally be dispatched within 3 business days of order placement. On very rare occasions this might extend a little longer. Items that are not in stock will be available on pre-order only, which will be indicated on the product page.

FAQ's

Category

Are Winter Gardenz greenhouses made in Australia?

Yes. All Winter Gardenz greenhouses are manufactured in Australia and New Zealand, designed to withstand tough local conditions and provide long-lasting durability.

Do I need council approval for my greenhouse?

Council approval requirements vary depending on your location and the size or type of greenhouse you plan to install. Some councils allow smaller greenhouses without approval, while others may require a permit before installation.

It’s best to check with your local council to confirm what’s needed in your area. If approval is required, we can provide detailed foundation and structural plans to support your application.

Where can I find the base dimensions?

Base dimensions are listed on each product page. Simply open the model you’re interested in and click “Download Foundation Page” for exact measurements.

What are the delivery options?

Delivery depends on whether you or your area have access to unloading equipment.

Option 1: Customer forklift
Delivery goes directly to your property. You’ll unload the boxes from the truck using your own forklift.

Option 2: Neighbour or local business forklift
Delivery can be made to a nearby location with a forklift. They can unload the boxes onto your vehicle. You’ll need a suitable vehicle such as a trailer, ute, or large truck to transport the greenhouse to your property.

Option 3: Freight depot pickup
We can deliver to your nearest freight depot where forklifts are available. You’ll collect the boxes using a suitable vehicle.
⚠️ Note: Ensure your vehicle can handle the total load.

Option 4: HiAB delivery
A truck with a crane delivers directly to your property and safely unloads the boxes on-site.

Is the Greenhouse Easy to Assemble?

Most customers find assembling their greenhouse manageable with some time and patience. If DIY isn’t for you, a professional installer can take care of the assembly for you. On average, an 8x8ft greenhouse takes two people about a day to complete.