Outsunny 6 x 3m Walk-In Polytunnel Greenhouse with Reinforced Steel Frame - White
A high-capacity walk-in greenhouse featuring an upgraded galvanised steel frame with diagonal bracing for enhanced stability in UK gardens.
- Galvanised metal frame resists rust for long-term outdoor use
- 15cm extended cover edges allow for secure soil anchoring against wind
- Grid-reinforced PE cover helps maintain structural integrity if snagged
- Includes all necessary ground stakes and guy ropes for immediate installation
Ends Sunday 14th June
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Delivery by 19th Jun 2026
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FREE UK mainland delivery
From our curation team
Why we recommend this
Often a strong fit for
- Serious vegetable growers
- Allotment owners
- Large gardens with space for plant propagation
- Cultivating heat-loving crops like tomatoes and cucumbers
This 6 x 3m walk-in polytunnel provides a spacious and protected environment for cultivating a wide variety of plants, vegetables, and flowers. Built with a focus on stability, it features an upgraded internal structure designed to withstand the demands of the growing season.
- Reinforced Steel Frame: Constructed from galvanised metal for rust resistance, including four sets of 'V' diagonal wall braces and six diagonal top braces to enhance structural integrity.
- Two-Layer Grid Cover: The 140 gsm PE shell features a middle reinforcement grid to prevent tearing while allowing 85% of natural sunlight to nourish your plants.
- Temperature Control: Equipped with eight mesh windows and a large roll-up door, allowing for easy access and customisable ventilation to prevent overheating.
- Secure Installation: Features a 15cm extended cover edge designed to be buried into the soil, creating a tighter seal and improving overall wind resistance.
- Complete Starter Kit: Supplied with four ground stakes, four guy ropes, 15 plant labels, and a pair of gloves to assist with setup and organisation.
The large-scale 18 square metre floor area offers an open layout, giving you the flexibility to arrange raised beds, shelving units, or large pots as required. The internal reinforcement rods provide additional points to pin the structure, ensuring the greenhouse remains a sturdy core for your garden or allotment. The mesh windows ensure that while air can circulate freely, unwanted pests are kept away from your crops.
| Length | 600 cm |
| Width | 300 cm |
| Frame Material | Galvanised Steel |
| Cover Material | 140 gsm PE with reinforcement grid |
| Colour | White |
| Number of Windows | 8 |
| Sunlight Transmission | 85% |
| Included Accessories | 4 ground stakes, 4 guy ropes, 15 plant labels, 1 pair of gloves |
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.
