Polytunnel greenhouse 4.5x9x2.25 m, 40.5 m², Transparent

Product number GH21250

A robust polytunnel greenhouse with a double cover creating the perfect growth conditions for most 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. An easy-to-handle and affordable alternative to the often more expensive greenhouses made of polycarbonate, aluminium, glass etc.

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Product specifications:

4.50 m.
9.00 m.
2.25 m.
1.45x2.25 m
Polyethylene, 180 Micron
Galvanised steel tubes
Ø32x1.5 mm
NF EN 13031 - April 1st, 2002 (B5)
100% Waterproof
274 kg.
Box 1-7: 42.0 x 16.0 x 231.0
Box 8: 38.0 x 12.0 x 206.0

Product info:

  • Affordable greenhouse with great growth conditions
  • Galvanised steel frame with Ø32 mm tubes
  • Double layer cover in 2 x 180 Micron polyethylene
  • Ground skirt for security
  • 2 hinged doors with frame (1.45 x 2.25 m)
  • Frontage system with clips for tight attachment of the cover
  • Wide door arched at the top for efficient ventilation
  • Easy assembly by screwing and interlocking
  • No special tool required
  • Clear and illustrated assembly instructions
  • 40.5 m²

A polytunnel greenhouse from Dancover with a double 2x180 Micron cover and a frame made of galvanised steel tubes. The greenhouse allows you to enjoy gardening from early spring well into the autumn. Look forward to having your very own greenhouse filled with beautiful and home-grown plants. This high-quality polytunnel greenhouse has been 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.

Safety Advice

  • In the case of strong wind, it is your responsibility to secure the polytunnel greenhouse adequately and prevent it from injuring materials and people.
  • Your polytunnel greenhouse is intended as a seasonal form of coverage and not as a permanent structure.
  • During windy weather, we advise you to secure your greenhouse or in case of strong wind, take it down. Overall, we advise you to place your polytunnel greenhouse in the lee of a building, trees or other that will protect the greenhouse from too strong and direct wind.
  • When it rains, water may pile up on top of your polytunnel greenhouse causing it to collapse. It is your responsibility to keep the roof of the greenhouse free of gathering water. Be sure that the cover is fully extended - please remove standing water that builds up during rainfall.
  • When it snows, snow may pile up on the top of your greenhouse. Wet and heavy snow may cause the greenhouse to collapse. It is your responsibility to remove snow from the roof of your greenhouse and save the structure from damage.
  • Please be sure that your greenhouse is completely dry before you take it down and pack it up. This will minimise the risk of mould and mildew.
  • Do not pack or unpack your greenhouse at temperatures below zero. Doing so may damage the cover.
  • Do not use open fire, welding equipment or other sources of ignition, inside or close to the greenhouse.
  • Please note that the Dancover warranty applies only to the normal use of the product happening in accordance with the written instructions in your manual. The warranty does not cover normal wear and tear. It does not cover damage, defect, wear and tear caused by misuse, poor maintenance, abuse, unauthorized modification or exposure to bad weather conditions either. (See above.)
  • We recommend you to check whether your polytunnel greenhouse is covered by your home contents insurance.
This structure is not tested for specific snow and wind loads! See above how to act during various weather conditions.



Greenhouse Guide

Our Team

Our professional sales advisors are at your service. Call us on 0 203 936 8258 and 0 870 820 0008, Monday - Thursday 7:30 - 5:00 , Friday 7:30 - 4:00 , E-mail: uk@dancover.com