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8x20 Polycarbonate Greenhouse with Twin-Wall Insulated Panels

8x20 Polycarbonate Greenhouse with Twin-Wall Insulated Panels

$9,235.00 - $9,235.00
$9,235.00
$9,235.00 - $9,235.00
$9,235.00

CONTACT US FOR A SHIPPING QUOTE
Call or text 0432 883 964
Email info@greenmyspace.com.au

Greenhouse freight costs can vary significantly by suburb. Contact us for the best available freight price, or proceed to checkout for an estimate.

  • ✔Designed and manufactured in Australia and New Zealand
  • ✔Built with high-grade materials and precision engineering
  • ✔Engineered for tough Australian weather conditions
  • ✔Dispatched from Victoria with local support

High-Capacity 8x20 Greenhouse for All-Season Growing and Climate Control

6mm Twin-Wall Polycarbonate for Insulation and UV Protection

This 8x20ft greenhouse is built with 6mm twin-wall polycarbonate panels for reliable insulation and light diffusion. The glazing is UV-protected on both sides, helping to maintain a consistent internal climate while protecting plants from temperature extremes and sunburn.

Extra Ventilation with 8 Roof Vents and a Rust-Resistant Frame

With eight roof vents included as standard, this greenhouse delivers excellent airflow across its extended layout. The matt-black aluminium frame is powder-coated for rust resistance and built to endure Australia’s harshest conditions.

Designed in New Zealand. Assembled in Australia.

Manufactured in New Zealand and assembled locally, this glasshouse is purpose-built for Australian conditions. Unlike many imported kits designed for milder climates, Winter Gardenz structures are engineered to handle the extreme weather seen in regional and coastal Australia — from strong winds to temperature swings.

Large-Scale Layout for Experienced Growers

At 2596mm wide x 6386mm long, this greenhouse provides the room serious growers need — ideal for food production, propagation zones, or diverse growing systems under one roof. It's a robust and scalable solution for high-output gardens or semi-commercial use.

  • Dimensions: 2596mm (W) x 6386mm (L) x 2615mm (H to ridge)
  • Height to gutter: 1620mm
  • Glazing: 6mm twin-wall polycarbonate (UV-protected both sides)
  • Frame: Matt-black powder-coated aluminium
  • Roof vents: 8 included for enhanced airflow
  • 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 8x20ft Poly Greenhouse

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

✅ 6x Automatic Vent Openers

✅ 4x Greenhouse Louvre Vent Kits

✅ 2x 10ft 3-Tier Adjustable Greenhouse Shelving

✅ 2x 8x10ft Shade Cover Kits

✅ 1x Aluminium Mesh Screen Door

✅ Extra Set of Sliding Doors for Back Wall

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

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.