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Garden Greenhouses

GARDENER DuoArch 3 × 4 m Greenhouse, 4 mm

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The greater the purchase, the bigger discounts you get.
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A 3 × 4 m greenhouse with a double-arch frame

Meet the GARDENER DuoArch The GARDENER DuoArch is a 3 × 4 m greenhouse with a 12 m² area, a 213 cm height and a 400 cm length. Its frame is made from galvanised steel and uses a double-arch construction. The covering is 4 mm polycarbonate. Two doors and two windows are included, providing access points and openings for ventilation.

Details to help you plan

  1. Double-arch frame: The greenhouse uses paired arches, with additional connections described as part of its frame construction. The arches are spaced 100 cm apart.
  2. Galvanised steel: The frame is made from galvanised steel. This identifies the frame material and its stated corrosion-protection treatment.
  3. 4 mm polycarbonate covering: The greenhouse covering is specified as 4 mm polycarbonate.
  4. Two doors and two windows: Two doors and two windows are included. The openings provide access and can be used to ventilate the greenhouse.
  5. Room to plan your layout: Its stated dimensions are 3 × 4 m, with a 12 m² area, 213 cm height and 400 cm length. Use these measurements to assess the space available for your setup.

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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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: PR.00442-4mm
  • Colour: Colourless / transparent
  • Size: 3x4 m
  • Height: 213 cm
  • Length: 400 cm
  • Area: 12 m2
  • Polycarbonate thickness: 4 mm
  • Polycarbonate sheets: 4 pieces / 6 m
  • Doors: 2 pieces
  • Windows: 2 pieces
  • Frame: Galvanised steel
  • Frame profile dimensions: 20x40 & 20x20 mm
  • Rust protection: Galvanisation
  • Arch spacing: 100 cm
  • Packaging: Number of packages: 1; package dimensions: 211 × 12 × 3 cm; package weight: 1.5 kg; Number of packages: 1; package dimensions: 170 × 12 × 4 cm; package weight: 6.2 kg; Number of packages: 1; package dimensions: 19 × 21 × 24 cm; package weight: 7.9 kg; Number of packages: 1; package dimensions: 293 × 76 × 7 cm; package weight: 11.3 kg; Number of packages: 1; package dimensions: 98 × 26 × 8 cm; package weight: 19.8 kg; Number of packages: 1; package dimensions: 102 × 220 × 15 cm; package weight: 29 kg; Number of packages: 1; package dimensions: 210 × 70 × 70 cm; package weight: 32 kg
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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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38944924
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