Walk-In Portable Greenhouse Tunnel – 4.5m x 3m x 2m Heavy-Duty Garden Polytunnel

Create the ideal growing environment all year round with this large walk-in garden polytunnel. Suitable for both beginners and experienced gardeners, it provides generous space for organising plants, flowers and herbs while ensuring reliable protection from the elements.

Built with a galvanised steel frame, the structure offers strong support and long-term durability, with a powder-coated finish that helps resist weather exposure outdoors. The reinforced PE mesh cover shields plants from light rain and wind while allowing plenty of natural sunlight to pass through, supporting healthy and consistent growth.

To maintain airflow and regulate temperature, the tunnel includes six roll-up mesh windows—designed to improve ventilation while preventing insects and pests from entering. A convenient roll-up front door provides easy walk-in access, while the supplied ground stakes and ropes help secure the structure firmly in place.

Key Features

• Spacious Walk-In Design – Ideal for plant organisation, propagation, and year-round growing.

• Galvanised Steel Frame – Strong, stable and resistant to rust and outdoor wear.

• Durable PE Mesh Cover – Allows sunlight to enter while offering protection from light rain and wind.

• Six Ventilated Roll-Up Windows – Mesh panels promote airflow and keep pests out.

• Roll-Up Front Door – Simple access for watering, planting and maintenance.

• Additional Stability – Includes 4 ground stakes and 4 pull ropes for secure anchoring.

Specifications

• Materials: Galvanised Metal Tube Frame, Reinforced PE Mesh Cover

• Colour: White

• Overall Size: 445 cm (L) × 299 cm (W) × 200 cm (H)

• Window Size: 45 cm × 37 cm

• Door Size: 170 cm × 155 cm

• Included Accessories: 4 × Ground Stakes, 4 × Pull Ropes

• Flat Pack: Yes