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Greenhouses and Greenhouse Accessories

Agromax 4 × 20 m Greenhouse with 6 mm Polycarbonate

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The greater the purchase, the bigger discounts you get.
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The greater the purchase, the bigger discounts you get.
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A long growing space for planned planting

Meet the Agromax 4 × 20 m greenhouse The Agromax greenhouse has a clear 6 mm polycarbonate covering and a galvanised steel frame. Its stated 80 m² area gives you space to organise beds and paths. Check the overall dimensions and frame details against the space you have available before choosing it.

Product details

  1. Room to plan your layout: The greenhouse measures 4 m wide and 20 m long, with a height of 2.96 m. Its stated area is 80 m², giving you the dimensions needed to plan where growing beds and walkways could go.
  2. Clear 6 mm covering: The covering consists of 17 clear polycarbonate panels, each 6 mm thick. This identifies the panel material and thickness for comparing the greenhouse with other options.
  3. Galvanised steel frame: The frame is made from galvanised steel and uses 40 × 20 mm and 20 × 20 mm profiles. These are the frame details to consider when assessing the product for your planned setup.
  4. Arches spaced 200 cm apart: The arch spacing is 200 cm. This gives you a specific construction detail to refer to when comparing greenhouse layouts and planning the growing area inside.
  5. Length extension option: To extend the greenhouse, add sections in 2 m increments between existing sections, rather than at the end walls.

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." – Lerato Mokoena
  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 Jacobs
  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." – Thandi Nkosi

Flexible payment options
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 dimensions: 40x20 & 20x20 mm
  • Rust protection: Galvanising
  • Polycarbonate thickness: 6 mm
  • Polycarbonate sheets: 17 pieces
  • Packaging: 1 package; package dimensions: 166 × 99 × 9 cm; package weight: 25 kg; 1 package; package dimensions: 186 × 32 × 9 cm; package weight: 27 kg; 1 package; package dimensions: 166 × 99 × 5 cm; package weight: 27 kg; 1 package; package dimensions: 186 × 32 × 5 cm; package weight: 27 kg; 1 package; package dimensions: 120 × 194 × 9 cm; package weight: 10 kg; 1 package; package dimensions: 196 × 22 × 8 cm; package weight: 5 kg; 1 package; package dimensions: 182 × 12 × 8 cm; package weight: 4 kg; 1 package; package dimensions: 210 × 80 × 80 cm; package weight: 22 kg; 8 packages; package dimensions: 166 × 99 × 5 cm; package weight: 17 kg; 8 packages; package dimensions: 186 × 32 × 5 cm; package weight: 18 kg; 8 packages; 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 and maintains these standards every day through a range of production and quality-control processes. This commitment is backed by a 20-year warranty against wood rot in timber structures and a 10-year warranty against functional defects.
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