Extension for polytunnel greenhouse 1.5 m, 4.5 m², Transparent

Product number GH21120

Extensions for our 9 m², 13.5 m², 18 m², 22.5 m² and 27 m² polytunnel greenhouses to give you even more room for all kinds of plants - fruits, vegetables, and flowers. The double cover is in durable, transparent 2x180 Micron PE with a frame made of Ø32 mm galvanised steel tubes. The extension together with the greenhouse is an easy-to-handle and affordable alternative to the often more expensive greenhouses made of polycarbonate, aluminium, glass etc.

£202.80
Members´ Price
£192.66
Price incl. VAT & custom duties
Excl freight cost
In stock
Estimated delivery time
4-5
working day(s)
Best price guaranteed
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0 203 936 8258
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Product specifications:

3.00 m.
1.50 m.
2.00 m.
Polyethylene, 180 Micron
Galvanised steel tubes
Ø32x1.5 mm
Transparent
UV-resistant
100% Waterproof
16.5 kg.
Box 1: 59.0 x 13.0 x 150.0 cm.

Product info:

  • 1.5 m extension for our 9 m², 13.5 m², 18 m², 22.5 m² and 27 m² polytunnel greenhouses
  • Galvanised steel frame with Ø32 mm tubes
  • Double layer cover in 2 x 180 Micron polyethylene
  • Ground skirt for security
  • Easy assembly by screwing and interlocking
  • No special tool required
  • Clear and illustrated assembly instructions
  • 4.5 m²


An extension for our polytunnel greenhouses allowing you to enjoy even more room for growing all kinds of plants from early spring well into the autumn. Look forward to having your very own greenhouse filled with beautiful and home-grown plants. This extension will fit our 9 m², 13.5 m², 18 m², 22.5 m² and 27 m² polytunnel greenhouses. This series of high-quality polytunnel greenhouses are manufactured in Europe by one of the leading suppliers of professional greenhouses with over 50 years of experience.

How to make the most of your polytunnel greenhouse

Please note that our range of polytunnel greenhouses are intended as seasonal structures only to be used from early spring until late summer/early autumn depending on the weather. The reason for this limitation is that a polytunnel greenhouse is a light structure – as opposed to, e.g. our polycarbonate greenhouses with strong aluminium frames. Our polytunnel greenhouses are not made to withstand heavy wind, strong rain or snow. Please read our Safety Advice before setting up the greenhouse.

Ground skirt for securing your polytunnel greenhouse

Please note that it is important that you secure your polytunnel greenhouse when you set it up. All our polytunnel greenhouses have a surplus of cover along the bottom edge at the ground – even the ones where you cut the cover yourself! This surplus is called the ground skirt, and you need to either bury this ground skirt or place heavy objects on it to weigh down the greenhouse for safety reasons.

Dancover expert tip: Polytunnel greenhouses are great for growing a variety of different plants. Remember to water frequently, ventilate as much as possible and harvest your crops regularly! It is extremely important that you keep the cover on the polytunnel greenhouse stretched and taut at all times. Otherwise, a risk emerges that during a rainfall water pile up on the roof of your greenhouse, which may cause the greenhouse to collapse.

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Our Team

Our professional sales advisors are at your service. Call us on 0 203 936 8258 and 0 870 820 0008, Monday - Friday 7:30 - 4:00 , E-mail: uk@dancover.com

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