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Winter Gardenz

8x20 Greenhouse 6mm Polycarbonate

8x20 Greenhouse 6mm Polycarbonate

$9,235.00 AUD
$9,235.00 AUD
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Taxes included. Shipping calculated at checkout.

Poly Greenhouse Dimensions & Features

  • Width: 2596mm (8ft approx)
  • Length: 6386mm (20ft approx)
  • Height (to gutter): 1620mm
  • Height (to ridge): 2615mm
  • Included: 8 roof vents for optimal airflow
  • 6mm twin-wall polycarbonate glazing for outstanding insulation
  • Enhanced thermal performance vs traditional glass greenhouses
  • Award-winning architectural design with sleek modern lines
  • Powder-coated matte black aluminium frame — rust-proof and weather-resistant
  • Designed and manufactured in Australia & New Zealand

Download Foundation Plans

Download General Foundation Guide

Why Choose Winter Gardenz?

The 8x20ft polycarbonate greenhouse is designed for serious growers who demand both space and performance. With exceptional airflow from 8 roof vents and energy-efficient glazing, it delivers ideal growing conditions while standing up to challenging weather.

Winter Gardenz combines award-winning style with high-grade materials, locally built to outperform imported alternatives and support sustainable gardening practices across Australia and New Zealand.

Note:

  • Greenhouses are delivered to your nearest Mainfreight Depot.
  • Dimensions are listed in millimetres; imperial figures are approximate.

Recommended Accessories for the 8x20ft Poly Greenhouse

Pair your greenhouse with these optional upgrades:

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    Complete Your Greenhouse with Accessories

    Customise your greenhouse for optimal performance and convenience. Our accessories are designed to integrate seamlessly with all Winter Gardenz models—whether you're boosting airflow, adding shelving, or automating your growing environment.

    Shelving Kits

    Maximise space and organisation

    Order Shelving

    Shading & Ventilation

    Improve airflow and temperature control

    Order Shade & Ventilation

    Everything you need to get growing with confidence

    Explore helpful resources, guides, and customer stories to make the most of your Winter Gardenz glasshouse. Whether you're positioning your structure, checking sizing, or finding a local stockist, we’ve got you covered.

    Support Hub

    • FAQs

      Get answers to common questions about assembly, shipping, materials, and more.

      Learn more 

    • Position Your Greenhouse

      Learn where and how to place your greenhouse for optimal light and airflow.

      Learn more 

    • Information & Videos

      Watch how-to videos, product walk-throughs, and maintenance tips.

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    • Weights & Sizes

      Compare kitset dimensions, structure weights, and model specifications.

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    • Stockists

      Find a trusted Winter Gardenz stockist near you across Australia.

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    • Testimonials

      Hear from real customers who’ve built and love their Winter Gardenz glasshouse.

      Learn more