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Urban Grand 6mm Polycarbonate Greenhouse 2.2m x 3.6m - Grey Frame


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Urban Grand 6mm Polycarbonate Greenhouse 2.2m x 3.6m - Grey Frame

This Grand Greenhouse means business!

This is our largest sized polycarbonate greenhouse, ideal for a large backyard or lifestyle block that strives to be self-sustainable and grow their own nutritious fruits and vegetables year round.

The sleek and stylish dark grey powder coated frame adds a real wow factor and looks great as a feature in any backyard. The door orientation allows for all day sun along the longest side to maximise the suns growing powers.

Being our largest model, this greenhouse allows for maximum space and growing potential, the single door entry provides lots of growing space as soon as you step foot inside. With enough room for a potting bench and shelving to store all your delicate seedlings or even your precious house plants.

With two roof vents, continuous air flow can be achieved by keeping the door open during the day and easily closing shut at night time to retain the heat. In winter, the strong 6mm polycarbonate panels will protect your plants and seedlings ensuring they remain at the idea temperature for growth.
With the zinc plated foundation frame and pegs, the greenhouse can be raised up to allow for growing direct into the soil or a base can be prepared to keep the floor surface clean and tidy if your prefer.  

Warranty of service - 

We stand by our products and offer a full 3 year warranty on our polycarbonate panels for this range and 5 year warranty on the frames. 

Fast shipping direct from the Steelmates NZ warehouse allows you to get growing faster.

Features –

  • RAW 6mm Polycarbonate Panels
  • Heavy Duty Semi-Commercial Frame- Easy to assemble, our greenhouse frames are made from heavy duty 1.5mm non-rusting powder coated grey finish.
  • The frames on Ultimate greenhouses are produced of the highest quality FIRST GRADE aluminium. This quality aluminium is strong enough to bear 180kg of snow, withstand very strong winds and needs minimal maintenance.
  • Slotted Channel Panel Fixture, better wind resistance.
  • Two opening roof vents
  • Zinc plate steel foundation frame with pegs

Colour: Grey

Greenhouse Dimension: 223cm W (Door width 66cm) x 366cm L x 215cm H
Package Include:
1 x Greenhouse
1 x Foundation Kit
1 x User Manual

Need some help?

Why not have a read of our blog post about comparing Glasshouses, Polycarbonate & Tunnel Houses so you can make the right choice for you? Or reach out to our sales team now using our Contact Us page and we will help you make the best decision. 


Our plastic greenhouse is equipped with 4 top vent windows and 2 sliding doors. Having proper ventilation ensures your plants are supplied with the correct temperature, moisture level and airflow.

Polycarbonate Greenhouse top vents open with blue sky behind


Most garden greenhouses are glazed with the wile-clip method, which involves clipping the plastic sheeting directly to the frame. However, this is not ideal for use in windy conditions. Our slot-in greenhouse has a good anti-wind performance, it keeps your greenhouse insulated and stable, even in harsh weather conditions, which is a better choice for New Zealand customers.

Polycarbonate Greenhouse top join connection showing strength and durability.


Our greenhouse is designed with sustainability and the environment in mind. Its features allow you to collect and recycle rain to water your plants. This means less water is wasted and our planet benefits.

Polycarbonate Greenhouse rain water guttering and drainage spout.


We provide a 3-year warranty for the panel and a 10-year warranty for the frame. Besides, the screws and nuts are stainless steel, which makes the greenhouse easy to maintain.

Polycarbonate Greenhouse door showing ease and use-ability.


Compared with glass material, our greenhouse is made of polycarbonate sheets that are lighter, and tougher. The thickness of the sheets is up to 6 mm, which makes the polycarbonate greenhouse more durable and stable. Besides, the light gets more evenly distributed to what would be darker areas in your greenhouse, which ensures your plants enjoy enough sunlight and grow lushly.

Polycarbonate Greenhouse internal view showing space and internal connections.

We get it. Youve got alot of choice when it comes to online local suppliers & retailers. Heres why we think you should shop with Urban Backyards. 

- We have brought some of the best suppliers NZ has to offer together for you to get the best products for your Urban Backyard. 

- Easy, trusted flat rate shipping to make its less stressful for you.

- Price Match Gaurantee. We offer the best price online, gaurenteed. 

- 30 Day Easy Returns. No happy with your product, we'll take it back, no questions asked. 

- Great, local service. We pride ourselves on the best service, anywhere.

Shipping within our beautiful country of Aotearoa New Zealand is a simple flat rate of $249. 

We trust Mainfreight for our shipping and as our items are often very heavy, depending on the item you will be required to uplift your item from your nearest Mainfreight depot with a car & trailer.

If you'd like shipping direct to your door then please get in touch using our online contact form and we can get that shipping price to you asap.


Our returns are easy so you can shop with confidence. 

If your item is not what your wanting then get in touch with us within 7 days of receiving the item, please include photos if faulty, and we will be in touch with returning your order and refunds. No questions asked. 

Safe, Easy and Trusted for your peace of mind. 

Are you wanting a bigger size? Different door configuration? A few additional products that you not sure how they will all work together?

Get in touch with us now using the Contact Us page or flick us an email on and include your phone number so we can email or call you back and provide you with all the information you need straight away - no obligation. 

We pride ourselves on serving you and ensuring you get the best for your Urban Backyard.