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Greenhouses and Greenhouse Accessories

Agromax 4x20 m Polycarbonate Greenhouse, 6 mm

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The greater the purchase, the bigger discounts you get.
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A spacious Agromax greenhouse for planned growing

Room to organise a larger growing space The Agromax 4x20 m polycarbonate greenhouse provides a long, wide growing area for arranging beds and walkways. It measures 4x20 m, with a listed height of 2.96 m and an area of 80 m². The covering is made up of 17 clear 6 mm polycarbonate sheets.

Details to consider

  1. A 4x20 m footprint: The stated dimensions give you a 4 m width and 20 m length to consider when planning where the greenhouse will sit and how to arrange the growing space inside.
  2. 6 mm clear polycarbonate: The greenhouse is supplied with 17 clear polycarbonate sheets, each 6 mm thick. Their transparent finish lets light pass through the covering.
  3. Galvanised steel frame: The frame is made from galvanised steel, with listed profiles of 40x20 mm and 20x20 mm. The stated distance between arches is 200 cm.
  4. Listed height of 2.96 m: At 2.96 m high, this model has a tall profile. Check the listed height alongside the available space at your chosen installation location.
  5. Extendable in 2 m increments: The design is described as extendable in 2 m increments by adding sections between the existing sections, rather than at the end walls. Extra sections are needed to change the stated 20 m length.

Experiences with Bloomcabin

  1. "Ordering from Bloomcabin was straightforward, and the team answered my questions before I purchased. I'm very happy with my choice." – Emma Wilson
  2. "My order arrived carefully packaged and was exactly as described. The quality met my expectations, and I would happily purchase from Bloomcabin again." – Daniel Clarke
  3. "I had a question about my delivery, and Bloomcabin's customer support was friendly and helpful. They kept me informed and made the whole experience easy." – Sophie Bennett

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We offer flexible and secure payment methods to make your shopping experience smooth and convenient.

Order now and save 45% with Bloomcabin. Bring your home and garden ideas to life, with helpful customer support from choosing your product to arranging delivery.



  • Article number: Agromax-Frame-4x20-00342-8x00316-LC6-L17
  • Colour: Colourless / transparent
  • Size: 4x20 m
  • Height: 2.96 m
  • Length: 20 m
  • Area: 80 m2
  • Arch spacing: 200 cm
  • Frame: Galvanised steel
  • Frame: 40x20 and 20x20 mm
  • Rust protection: Galvanisation
  • Polycarbonate: 6 mm
  • Polycarbonate sheets: 17 pieces
  • Packaging: Number of packages: 1; package dimensions: 166 × 99 × 9 cm; package weight: 25 kg; Number of packages: 1; package dimensions: 186 × 32 × 9 cm; package weight: 27 kg; Number of packages: 1; package dimensions: 166 × 99 × 5 cm; package weight: 27 kg; Number of packages: 1; package dimensions: 186 × 32 × 5 cm; package weight: 27 kg; Number of packages: 1; package dimensions: 120 × 194 × 9 cm; package weight: 10 kg; Number of packages: 1; package dimensions: 196 × 22 × 8 cm; package weight: 5 kg; Number of packages: 1; package dimensions: 182 × 12 × 8 cm; package weight: 4 kg; Number of packages: 1; package dimensions: 210 × 80 × 80 cm; package weight: 22 kg; Number of packages: 8; package dimensions: 166 × 99 × 5 cm; package weight: 17 kg; Number of packages: 8; package dimensions: 186 × 32 × 5 cm; package weight: 18 kg; Number of packages: 8; package dimensions: 210 × 80 × 80 cm; package weight: 34 kg
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10 year warranty
Bloomcabin takes pride in its high-quality products, ensuring this every day through various production and quality control processes. This is backed by a 20-year warranty against wood rot for wooden structures, as well as a 10-year warranty against functional defects.
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