Large Walk-In Polytunnel Greenhouse with Mesh Windows, 6m x 3m - White
A high-capacity 18m² growing space featuring integrated ventilation and a rust-resistant frame at a practical price point.
- Galvanised steel frame provides long-term resistance against rust and corrosion.
- Included guy ropes and ground stakes offer essential stability in typical garden conditions.
- Mesh-backed windows provide ventilation while creating a physical barrier against pests.
Ends Friday 31st July
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Delivery by 14th Jul 2026
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FREE UK mainland delivery
From our curation team
Why we recommend this
Often a strong fit for
- Large domestic gardens
- Allotment holders
- Home vegetable production
- Protecting young plants from wind and rain
This large 6m x 3m walk-in polytunnel greenhouse provides a generous 18 square metres of growing space, ideal for cultivating a wide variety of vegetables, flowers, and plants throughout the seasons.
- Spacious Internal Area: The 5.95m length offers ample room for tiered shelving or ground-level planting, allowing you to customise your layout for maximum productivity.
- Galvanised Steel Frame: Constructed with a sturdy metal frame and four corner slant bars, the structure is designed to stand steady against the elements.
- Eight Mesh Windows: Integrated side windows provide essential ventilation to regulate temperature and humidity, with mesh screens to help keep insects out.
- Weather-Resistant Cover: The white PE plastic cover protects your crops from wind and rain while allowing diffused sunlight to reach your plants.
- Large Walk-In Access: A wide door measuring 170cm across makes it easy to move tools, compost bags, and large planters in and out of the tunnel.
Designed for the serious home gardener or allotment holder, this polytunnel offers a professional-scale environment for extending the growing season. The 2-metre internal height ensures a comfortable working space, allowing you to tend to taller crops like tomatoes or cucumbers without having to crouch.
For added stability, the kit includes four ground stakes and four guy ropes to secure the structure firmly to the ground. While the galvanised frame is built for durability, it is recommended that the structure is not left up during periods of heavy or extreme weather to protect the cover and frame from damage.
| Height | 200cm |
| Length | 595cm |
| Width | 300cm |
| Door Dimensions | 170cm (W) x 164cm (H) |
| Window Dimensions | 40cm (W) x 47cm (H) |
| Frame Material | Galvanised Steel |
| Cover Material | PE Plastic |
| Product Weight | 32kg |
This product is dispatched and delivered by our approved partner, Giga from their UK warehouse.
- Cost: Delivery is FREE for all orders within mainland UK.
- Delivery Method: Please be aware that larger items are delivered kerbside (the street or pavement outside your property).
Easy Returns
Not the perfect fit? No problem. Our returns process is straightforward and completely free.
- 21 Day Guarantee: You can return your item up to 21 days after delivery.
- Online Portal: To start a return, simply visit our online portal and follow the prompts to generate your labels or schedule a collection.
For more information, please see our returns policy.
