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Greenhouses and Greenhouse Accessories

GARDENER 300 3 x 4 m Polycarbonate Greenhouse, 4 mm

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The greater the purchase, the bigger discounts you get.
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GARDENER 300 3 x 4 m Greenhouse

Room to grow under cover The GARDENER 300 is a 3 x 4 m polycarbonate greenhouse for growing vegetables, herbs and seedlings. Its listed footprint is 12 m², with a 400 cm length and 212 cm height to help you check the space available. The covering is clear 4 mm polycarbonate, and the frame is galvanised steel.

Details for planning your growing space

  1. A 12 m² footprint: The greenhouse measures 3 x 4 m, with a stated length of 400 cm and height of 212 cm. Compare these measurements with the space available in your garden.
  2. Clear 4 mm polycarbonate: The covering is clear 4 mm polycarbonate. The specification lists four polycarbonate sheets, with 6 m given for the sheet length.
  3. Galvanised steel frame: The frame is made from galvanised steel, with galvanising listed as its corrosion protection. The arches are spaced 100 cm apart.
  4. Two doors: Two doors are included for access. Consider their position when planning the layout around the greenhouse.
  5. Two windows: Two windows are included as ventilation openings. Their number may help you plan how to manage airflow inside the greenhouse.

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

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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: PRT10100401-00341-4mm
  • Colour: Clear
  • Dimensions: 3x4 m
  • Height: 212 cm
  • Length: 400 cm
  • Area: 12 m2
  • Polycarbonate thickness: 4 mm
  • Polycarbonate sheets: 4 sheets / 6 m
  • Doors: 2
  • Windows: 2
  • Frame: Galvanised steel
  • Frame profile: Square profiles: 20x40 & 20x20 mm
  • Corrosion protection: Galvanising
  • Arch spacing: 100 cm
  • Packaging: 1 package; package dimensions: 217 × 120 × 9 cm; package weight: 20 kg; 1 package; package dimensions: 177 × 90 × 4 cm; package weight: 10 kg; 2 packages; package dimensions: 98 × 14 × 8 cm; package weight: 20 kg; 1 package; package dimensions: 29 × 8.5 × 12 cm; package weight: 2.2 kg; 1 package; package dimensions: 210 × 70 × 70 cm; package weight: 20 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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