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Garden Greenhouses

MEGA PREMIUM 8x20 m greenhouse, 6 mm

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MEGA PREMIUM 8x20 m greenhouse

A large greenhouse for growing space The MEGA PREMIUM is an 8x20 m greenhouse with a stated area of 160 m². Its dimensions make it a substantial option for gardeners who need a long growing space. The listed overall height is 300 cm, with 200 cm wall height and 200 cm between arches. The frame is made from galvanised C-shaped steel profiles.

Key details

  1. 160 m² footprint: At 8x20 m, the greenhouse provides a long, broad growing area. Check that the listed dimensions suit the space you plan to use.
  2. Galvanised steel frame: The frame uses C-shaped steel profiles measuring 89x41.2x39x10x10 mm, with listed profile thicknesses of 0.8 and 1.2 mm. The specified coating is galvanisation Z275 g/m² (C3).
  3. Polycarbonate cladding specification: The product details specify 6 mm polycarbonate and state that 24 sheets, each 6 m long, are required. They do not confirm whether the sheets are included, so check the supplied components before ordering.
  4. Two listed doors: The specification lists two doors, each measuring 92x210 cm. Use these measurements when considering access and the space needed around the greenhouse.
  5. Height and arch spacing: The listed overall height is 300 cm, the wall height is 200 cm and the distance between arches is 200 cm. No windows are included; the listed window size is 100x100 cm.

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." – Aoife Murphy
  2. "My order arrived carefully packaged and was exactly as described. The quality met my expectations, and I would happily purchase from Bloomcabin again." – Conor Walsh
  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." – Niamh O'Brien

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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: 8x20-GH-Mega-Premium-6mm
  • Colour: Clear (transparent)
  • Size: 8x20 m
  • Area: 160 m2
  • Length: 20 m
  • Height: 300 cm
  • Wall height: 200 cm
  • Arch spacing: 200 cm
  • Frame: 89x41.2x39x10x10 mm C-section galvanised steel
  • Frame thickness: 0.8 | 1.2 mm
  • Corrosion protection: Galvanising Z275 g/m2 (C3)
  • Polycarbonate: 6 mm
  • Polycarbonate sheets: 24 sheets / 6 m
  • Doors: 2 doors
  • Door size: 92x210 cm
  • Windows: Not included in the set
  • Window size: 100x100 cm
  • Snow load: 130-160 kg/m2
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10 year warranty
Bloomcabin is proud of its high-quality products and maintains these standards every day through a range of manufacturing and quality control processes. This 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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