6x12 Polycarbonate Greenhouse with Twin-Wall Insulated Panels

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.