Your garden, whatever the weather.
A polycarbonate hard roof gazebo changes how you use your garden — not just in summer, but across the whole year.
Lay the table beneath it on a grey afternoon. Host a long lunch that runs into evening. Let the curtains down and keep the world out.
It's the kind of space that makes your garden feel finished — and makes you wonder why you waited.
The roof is built from 6mm double-wall polycarbonate panels set into aluminium beams. This construction diffuses harsh sunlight rather than blocking it entirely, keeping the space bright without the glare — and it holds up to 100kg of snow load.
The powder-coated steel frame is rated to Windproof Level 6 — a Strong Breeze of up to 49 km/h (31 mph) — so it stays put through typical British summer weather without needing to be dismantled.
It works on any surface. Use the included expansion screws for concrete or paving, and the ground stakes for grass or soil. For timber decking, specialist wood expansion screws are recommended to avoid splitting — these aren't included but are widely available.
Assembly takes 3–4 hours and is best tackled with 2–4 people. Safety gloves are included in the box.
Key Features
Specifications
| Brand | Outsunny |
| Type | Polycarbonate Gazebo |
| Colour | Black & Dark Grey |
| Frame Material | Powder-Coated Steel |
| Roof Material | 6mm Double-Wall Polycarbonate with Aluminium Beams |
| Curtain Material | Polyester |
| Overall Size | 300 x 300cm (L x W) |
| Eaves Height | 193cm |
| Top Height | 260cm |
| Column Spacing | 253cm |
| Wind Rating | Level 6 — Strong Breeze (39–49 km/h / 24–31 mph) |
| Snow Load Capacity | 100kg |
| Product Weight | 52kg |
| Number of Boxes | 3 |
| Assembly Time | 3–4 hours (2–4 people recommended) |
| Warranty | 1 year — manufacturer defects |
| UV Resistant | Yes |
| Water Resistant | Yes |
| Flat Pack | Yes |
Assembly & Setup
Download Assembly Instructions (PDF)What's in the Box
- 1 x Polycarbonate Gazebo
- 12 x Ground Stakes
- 12 x Expansion Screws
- 4 x Curtains
- 4 x Mosquito Nets
- 1 x Pair of Safety Gloves
- 1 x Assembly Instructions
Why Buy From Opal Retail?
UK-Based Support
Our customer service team is based in the UK and available Monday to Friday. We're here to help before, during, and after your purchase.
1-Year Warranty
Every gazebo we sell comes with a minimum 1-year warranty. Buy with confidence knowing we stand behind the quality of everything we stock.
Free Returns
Not quite right? Return any item within 60 days for a full refund, no questions asked. We make the process as straightforward as possible.
Secure Payment
All transactions are encrypted and processed securely. We accept all major cards, PayPal, Klarna, Clearpay, and Shop Pay.
Frequently Asked Questions
Assembly typically takes 3–4 hours from unpacking to completion. We recommend having 2–4 people on hand, particularly when lifting and positioning the roof panels. Safety gloves are included in the box to make the process safer.
Yes — the gazebo is suitable for all surfaces. For timber decking, we recommend using specialist wood expansion screws (not included) rather than the standard expansion screws provided, to avoid splitting the timber. Ground stakes are included for grass or soil installation.
The 6mm double-wall polycarbonate roof is both UV and water resistant, and the structure is rated to Windproof Level 6 — a Strong Breeze of up to 49 km/h (31 mph). The roof also carries a 100kg snow load rating, making it a practical year-round structure in the UK.
Yes, all four curtains and four mosquito nets are fully removable. This lets you open the gazebo up completely on fine days or close it down for privacy and insect protection when needed.
The gazebo is covered by a 1-year manufacturer's warranty against defects in materials and workmanship. If you experience an issue, contact us directly and we'll work to resolve it promptly.
Delivery & Returns
Delivery
- Free standard UK delivery on all orders
- Estimated dispatch within 1-3 working days
- Tracked delivery — you'll receive a tracking link by email
- Mainland UK addresses only
Returns
- 60-day hassle-free returns
- Items must be unused and in original packaging
- Contact our UK support team to arrange a return
- Refunds processed within 5-7 working days
