Polytunnel Greenhouse 4x3m | Large Walk-In Garden Tunnel with Steel Frame and Mesh Cover OUTSUNNY

Spacious walk-in design with reinforced steel frame and durable mesh cover
Create the perfect growing environment with this Outsunny 4 x 3m polytunnel greenhouse. The large open layout provides ample space for plants, vegetables and flowers, while the galvanised steel frame with multiple reinforcement rods ensures long-term stability. A roll-up mesh door and six side windows provide excellent ventilation, making it easy to manage temperature and humidity.

The tough two-layer PE cover features a reinforcement grid to prevent tearing and 15cm edges to bury securely into soil. With 85% light transmission, it provides essential sunlight while shielding plants from wind and weather. Complete with ground stakes, guy ropes, plant labels and gloves, this greenhouse kit has everything you need for a successful growing season.

Key Features:

• Extra-Supportive Steel Frame – Galvanised metal with 4 V-shaped wall braces, 6 top braces and 4 reinforcement rods for maximum strength

• Spacious 4 x 3m Design – Large open walk-in greenhouse for plants, vegetables and flexible garden layouts

• Reinforced Two-Layer Cover – 140gsm PE with middle grid for tear resistance, 85% light transmission and 15cm edges to bury into soil

• Roll-Up Mesh Door & Windows – One large door and six windows allow airflow and temperature control while keeping pests out

• Complete Accessory Kit – Includes 4 ground stakes, 4 guy ropes, 10 plant labels and 1 pair of gloves for secure installation and convenience

Specifications:

• Overall Dimensions: 396L x 300W x 200H cm

• Side Window Dimensions: 47W x 40H cm

• Outer Door Dimensions: 174W x 155H cm

• Inner Mesh Door Dimensions: 153W x 185H cm

• Materials: Galvanised steel frame, 140gsm PE cover, polyester mesh

• Windproof Level: 5–6 (when fully fixed)

• Colour: White & Grey

• Assembly Required: Yes – 3–4 people recommended

• Brand: Outsunny

What’s Included:

• 1 x 4x3m Polytunnel Greenhouse

• 4 x Ground Stakes

• 4 x Guy Ropes

• 10 x Plant Labels

• 1 x Pair of Gloves

• 1 x Steel Wire Rope

• 1 x Instruction Manual

Perfect For:

• Large-scale gardening – Spacious 4x3m interior for vegetables, flowers and plants

• All-season growing – Reinforced PE cover retains warmth and shields plants from weather

• Custom garden layouts – Open tunnel design allows shelves, rows or planters to be arranged freely

• Ventilated cultivation – Roll-up mesh door and six windows ensure airflow and climate control

• Secure installation – Includes stakes, ropes and reinforced rods for maximum stability

• Convenient use – Complete with labels and gloves for organised planting and comfort

Outsunny 4x3m walk-in polytunnel | Reinforced steel frame with mesh cover

Free UK Delivery | Pay Later Available with Klarna or PayPal