Outsunny 6 x 3m Walk-in Polytunnel Greenhouse with 8 Mesh Windows
A large-scale 18 square metre growing environment that provides professional-level capacity for home gardeners and allotment holders.
- Metal frame provides a steady and upright structure for consistent use
- Included guy ropes and ground stakes help maintain stability in your garden
- Thick PE cover offers reliable protection against light rain and wind
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
- Allotments
- Large vegetable patches
- Growing height-dependent crops
- Serious home gardeners
This large-scale walk-in polytunnel provides nearly 18 square metres of protected growing space, ideal for cultivating a wide variety of vegetables, fruits, and plants. Designed for gardeners who need significant room, the structure combines a sturdy metal frame with a thick PE cover to create an optimal environment for plant growth.
- Generous Growing Capacity: The 590cm length and 300cm width offer ample room for multiple rows of crops or large plant collections.
- Effective Ventilation: Equipped with eight mesh windows to allow fresh air to circulate, helping to regulate temperature and humidity levels.
- Weather Protection: The thick PE cover shields plants from light rain and wind while retaining heat to support healthy development.
- Easy Access: Features a large 170cm wide zipped door that rolls up, allowing for easy entry even when carrying bulky gardening tools.
- Stable Anchoring: Includes four guy ropes and four ground stakes to help keep the tunnel secure and attached to the ground.
The 2-metre internal height of this greenhouse ensures that you can work comfortably while standing, making it much easier to tend to taller plants or manage your crops. The steel frame is designed to keep the structure upright and steady, providing a reliable skeleton for the durable plastic shell. This setup is particularly effective for extending the growing season by keeping the internal environment warmer than the outside air.
Assembly is required for this polytunnel, and it is designed for use in standard garden conditions. To maintain the integrity of the structure and protect your plants, it should not be left up during heavy weather or high winds. The walk-in design makes it a practical choice for serious home growers and allotment holders who require a high-volume growing solution without the permanence of a traditional glasshouse.
| Length | 590 cm |
| Width | 300 cm |
| Height | 200 cm |
| Door Dimensions | 170H x 170W cm |
| Cover Material | PE Plastic |
| Frame Material | Steel |
| Number of Windows | 8 |
| Assembled Weight | 27 kg |
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.