Greenhouse interior with rows of plants and a gravel path.

Polytunnel Premium Kit

~~$7,190.00~~ $6,471.00

Size: 4m x 8m

4m x 8m

4m x 10m

4m x 12m

4m x 14m

4m x 16m

4m x 18m

4m x 20m

4m x 22m

4m x 24m

4m x 26m

4m x 30m

4.9m x 8m

4.9m x 10m

4.9m x 12m

4.9m x 14m

4.9m x 16m

4.9m x 18m

4.9m x 20m

4.9m x 22m

4.9m x 24m

4.9m x 26m

4.9m x 30m

5.8m x 8m

5.8m x 10m

5.8m x 12m

5.8m x 14m

5.8m x 16m

5.8m x 18m

5.8m x 20m

5.8m x 22m

5.8m x 24m

5.8m x 26m

5.8m x 30m

Shade Cloth: No Shade Cloth

No Shade Cloth

With Shade Cloth

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Tunnel Assistant Hotline

Questions about this tunnel? Call our assistant hotline on 0418 438 774.

Estimated delivery: 2 - 15 Business Days.

+5 days for regional locations on average [More Info]

SKU GH-PM-4X8-KIT

Barcode

Availability In Stock Backorder Out of stock

Shipping Weight 816.0 kg

Premium Polytunnel Greenhouse (The Premium Kit) - 150km/h Wind Rated - Commercial High-Clearance Structure

Engineered for extremes and built to last a lifetime, the Premium Polytunnel represents the absolute pinnacle of our engineering. This is the ultimate peace of mind solution for high-value commercial operations and the most demanding environments. We’ve upgraded the very foundation of the structure with thicker 42mm steel footings, increased the wall height for a massive internal volume, and reinforced the roof for professional-grade hanging capacity. This is the definitive structure for growers who accept nothing but the best.

Best For Long-term commercial investments, growers in high wind zones or extreme weather areas, and professional enterprises who demand the best in performance, durability, and space.

Key Features

Extreme 150 km/h Wind Rating: Unmatched wind performance, professionally engineered to withstand extreme 150 km/h gusts, making it our top-rated structure for the most exposed and demanding locations.
Expansive Vertical Space: The wall height is increased by 70cm (up to 2.5m), creating a vast, comfortable working environment with more stable air circulation and room for taller, high-yielding vining crops.
Ultimate Foundation: Built with heavy-duty 42mm (2.5mm thick) galvanised steel footings that are inserted 1 metre into the ground for unparalleled, permanent stability.
Superior Roof & Hanging Capacity: Includes horizontal purlins for every hoop, creating a high-strength roof rated for suspending lighting rigs, internal shade screens, irrigation booms, and multiple rows of heavy crops.

Premium 5-Piece Cover: Features Australia's toughest 250 micron EVA film (Anti-UV, Anti-Drip, Anti-Fog) in a multi-piece design, which allows for easier installation and maintenance on large structures.
Fully Reinforced Pro-Frame: Includes all the features of our Pro range, including 'Top Hat' reinforcement, close spaced arches, and extensive bracing for a truly rigid and robust commercial structure.
10-Year Installation Warranty: An investment grade warranty provides a decade of peace of mind when installed by our professional team.
Includes Protection Felt Tape: Comes with anti-friction felt tape to protect your cover from wear and tear against the steel frame, extending its lifespan.

Sizes Available

This kit is available in our largest range of sizes.

Specifications

Frame: Upgraded Heavy Duty Galvanised Steel
Footings: 42mm Galvanised Steel (2.5mm thick), 1m deep
Cover: 250-micron Premium EVA Greenhouse Film (5-Piece Design)
Cover Treatments: Anti-UV, Anti-Drip, Anti-Fog, High Diffusion, Chemical Resistant
Wind Rating: 150 km/h
Reinforcement: Full Roof Purlins, 'Top Hat' Channels, Close Spaced Arches, Extensive Bracing
Wall Height: 2.2m - 2.5m (Varies by kit size)
Apex Height: 3.5m - 4.15m (Varies by kit size)
Warranty: 10-Year (when professionally installed)
See full product specifications here

Ideal For (Uses)

Long-term commercial horticulture and viticulture operations.
Protecting high-value crops in extreme weather and high wind zones.
Professional nurseries require internal hanging space for irrigation booms and shade systems.
Growers needing maximum internal height for vining crops (tomatoes, cucumbers) or small machinery access.
Research stations and agricultural colleges.

Engineered for Extremes. Built to Last.

Watch & Learn - Install Your Polytunnel

Step-by-Step Polytunnel Installation Guide

Need a hand or custom modifications? We offer Australia-wide:

See the full technical specifications for more details.

Got more questions? See our FAQs for detailed answers on setup, materials, and product care.

Shipping & Dispatch

Multiple skids: The following configurations may be dispatched on multiple timber skids/pallets: 4m x 18m (2 skids), 4m x 20m (2 skids), 4m x 22m (2 skids), 4m x 24m (2 skids), 4m x 26m (2 skids), 4m x 30m (2 skids), 4.9m x 16m (2 skids), 4.9m x 18m (2 skids), 4.9m x 20m (2 skids), 4.9m x 22m (2 skids), 4.9m x 24m (2 skids), 4.9m x 26m (2 skids), 4.9m x 30m (2 skids), 5.8m x 16m (2 skids), 5.8m x 18m (2 skids), 5.8m x 20m (2 skids), 5.8m x 22m (2 skids), 5.8m x 24m (2 skids), 5.8m x 26m (2 skids), 5.8m x 30m (2 skids), 4m x 16m (2 skids), 4m x 18m (2 skids), 4m x 20m (2 skids), 4m x 22m (2 skids), 4m x 24m (2 skids), 4.9m x 16m (2 skids), 4.9m x 18m (2 skids), 4.9m x 20m (2 skids), 4.9m x 22m (2 skids), 4.9m x 24m (2 skids), 5.8m x 14m (2 skids), 5.8m x 16m (2 skids), 5.8m x 18m (2 skids), 5.8m x 20m (2 skids), 5.8m x 22m (2 skids), 5.8m x 24m (2 skids). Total product weight includes all skids.

Additional Information

Size	4m x 8m, 4m x 10m, 4m x 12m, 4m x 14m, 4m x 16m, 4m x 18m, 4m x 20m, 4m x 22m, 4m x 24m, 4m x 26m, 4m x 30m, 4.9m x 8m, 4.9m x 10m, 4.9m x 12m, 4.9m x 14m, 4.9m x 16m, 4.9m x 18m, 4.9m x 20m, 4.9m x 22m, 4.9m x 24m, 4.9m x 26m, 4.9m x 30m, 5.8m x 8m, 5.8m x 10m, 5.8m x 12m, 5.8m x 14m, 5.8m x 16m, 5.8m x 18m, 5.8m x 20m, 5.8m x 22m, 5.8m x 24m, 5.8m x 26m, 5.8m x 30m
Shade Cloth	No Shade Cloth, With Shade Cloth

View the full product comparison table here.

Oversize Item Delivery

Oversized Item Delivery Options

Oversized, heavy, and structural goods ship via specialist freight. Freight is calculated at checkout from estimated packaged volumetric or physical weight. Carrier depot audits may adjust the rate — if the increase exceeds 10%, we will contact you before processing.

Available options include:

✔ Delivery to your closest depot for pickup — default method
✔ Direct delivery — requires an operational forklift on site unless Tailgate Delivery has been specifically requested and quoted (contact us — this cannot be selected at checkout)
✔ Tailgate hydraulic lift delivery — must be specifically requested; contact us for a quote (not available as a checkout option; extra fees apply; required if you do not have a forklift)
✔ Forklift loading at our warehouse (no extra charge if you arrange your own freight)
✔ Direct truck delivery (available in Victoria)

Important Notes:

Shipping costs vary by location and method
Any carton or consignment over 25–30kg (or over 200cm) must be palletised
Without a specifically requested and paid Tailgate Delivery quote, palletised freight requires a forklift on site — otherwise the carrier will redirect to the nearest depot
Bulky and oversized items cannot be delivered to a PO Box — provide a physical street address
Failed deliveries, locked gates, unattended sites, or incorrect business/forklift declarations may incur carrier redelivery, demurrage, and restocking fees as set out in our Terms & Conditions

Business Delivery:

Selecting a business/commercial delivery rate warrants that the address has an operational forklift and certified operator during business hours
If the carrier cannot unload, the consignment may be redirected to a depot and secondary fees may apply
Additional fees may apply for failed delivery attempts due to lack of appropriate unloading equipment

See our Terms & Conditions (Article 8) for full freight and delivery rules.

Shipping & Lead Times

Important Note on Availability & Shipping

Our warehouse is a logistics hub, not a retail showroom. Listing a product online does not mean it is stored at our Thomastown warehouse — many lines ship from supplier hubs (split fulfilment may apply).

How lead times work:

Product page ETA: The Estimated Time of Arrival (ETA) / lead-time badge shown on the product page at checkout is the agreed delivery timeframe for that order under Australian Consumer Law.
Metro baselines: Advertised ETAs apply to standard metropolitan zones. Regional and remote addresses may take longer and may attract surcharges.
Peak seasons: Orders in March–May, August–October, EOFY (June), Black Friday/Cyber Monday (November), and Christmas/New Year (December–January) may automatically add a 2–4 week buffer beyond the product page ETA.
Supplier-dependent / backordered items: If stock is delayed, we will notify you with a revised ETA. You then have 7 days to accept the new timeframe or cancel for a full refund.
Adloheat: Custom-made products from Adloheat (Pakenham, VIC) may take 4–12 weeks depending on the order.

Full fulfilment, cancellation, and freight rules are in our Terms & Conditions.

Biosecurity & Interstate Shipping Restrictions

Due to strict state biosecurity regulations, we are unable to ship some products to certain states and territories:

Potting Mixes cannot be shipped to Western Australia (WA), the Northern Territory (NT), or Tasmania (TAS).
Seeds cannot be shipped to Western Australia (WA).

Orders placed for these items to restricted states will be cancelled and refunded. It is the customer's responsibility to ensure that the items being ordered can lawfully be delivered to their state or territory.

Price Match Guarantee

We Offer the Best Prices

We are committed to offering competitive market rates. If you find an identical, currently stocked product advertised at a lower price by an authorised Australian competitor, contact us before purchase and we will review your request.

Price Match Conditions:

The competitor must be a registered Australian business (active ABN) with a physical trading address or verified commercial presence in Australia
The item must be identical in brand, model, SKU, gauge, dimensions, and specifications
The lower price must be publicly advertised in AUD, currently active, and available for immediate purchase
Excludes liquidation, clearance, closeouts, damaged goods, and discontinued lines
Excludes overseas marketplaces and aggregators including Temu, AliExpress, eBay auction sellers, and Amazon third-party sellers
Excludes trade quotes, bulk discounts, and custom negotiated quotes not publicly visible
Requests must be made in writing before purchase

How to Request a Price Match:

Email [email protected] with a live link or official quote. We reserve sole discretion to verify and approve price match adjustments. See Article 6.7 of our Terms & Conditions.

Pricing Errors & 105% Store Credit

If a displayed price is incorrect due to a website error or an extraordinary supplier increase, we will contact you before processing. You may proceed at the corrected price, choose an alternative, or cancel for a full cash refund. A 105% store credit may be offered as a courtesy bonus at our sole discretion only. It is not an entitlement, and we may refuse it if we believe it is being abused or sought in bad faith. Full details: Terms & Conditions Article 6.1.

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