3m x 3m Walk-In Polytunnel Greenhouse with Mesh Windows - Green
A practical growing environment that combines 85% light transmission with a reinforced cover for reliable plant protection.
- Reinforced cover with an internal grid resists tearing and UV damage.
- Arched roof design prevents rain water from pooling and sagging the cover.
- Included ground ropes and stakes help secure the structure in outdoor settings.
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
- Vegetable growers needing frost protection
- Medium-sized garden plots
- Extending the growing season for delicate plants
This 3m x 3m walk-in polytunnel provides a dedicated space for cultivating plants and vegetables, offering essential protection from the elements in a footprint suitable for medium-sized gardens.
- Reinforced UV Cover: The three-layer plastic cover includes a middle reinforcement grid for durability and an anti-UV coating that allows 85% of natural sunlight to reach your plants.
- Mesh Ventilation Windows: Side windows are equipped with mesh screens, allowing you to regulate temperature and encourage airflow while keeping larger pests out.
- Large Zipped Access: The wide walk-in door provides easy access for tools and equipment; it can be rolled up and secured in place to provide maximum ventilation.
- Sturdy Steel Frame: Built with a strong galvanised steel core, the structure features an arched top designed to prevent sagging and water pooling.
The interior offers a completely open layout, giving you the flexibility to arrange shelving, pots, or raised beds to suit your specific growing requirements. With a 2-metre walk-in height, the greenhouse provides a comfortable environment for regular maintenance and plant care. To help with stability, the set includes four ground ropes and four ground stakes to pin the frame securely to the soil.
It is recommended that two people assemble this polytunnel to ensure the frame and cover are correctly aligned and secured.
| Dimensions | 200H x 300L x 300W cm |
| Door Dimensions | 170H x 180W cm |
| Assembled Weight | 13 kg |
| Frame Material | Steel |
| Cover Material | Reinforced Plastic (PE) |
| Light Transmission | 85% |
| Assembly Required | Yes (2 people recommended) |
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.
