Your garden, sheltered and styled all season long
A hardtop gazebo transforms how you use your garden — turning an open lawn into a proper outdoor room you can enjoy from spring through to autumn.
Imagine Sunday lunches under a solid roof, evening drinks with the curtains drawn, or a quiet morning coffee with the mesh sides keeping insects at bay.
With four side curtains and four mosquito nets, you control the light, the privacy, and the atmosphere.
The 6mm polycarbonate roof panels are translucent, UV-protective, and water-resistant — letting natural light through while keeping rain out and protecting against sun exposure.
The powder-coated aluminium frame provides a stable, long-lasting structure across a 3m x 3m footprint, with an eaves height of 206cm giving a comfortable, open feel underneath.
Installation is straightforward on any surface: use the included ground stakes on grass or soil, and the expansion screws on patios or hard standing. For timber decking, specialist wood screws are recommended to avoid splitting.
No planning permission is required in most cases, as this gazebo falls under permitted development rights — though it's always worth checking with your local council if you're unsure.
Key Features
Specifications
| Brand | Outsunny |
| Colour | Black roof, dark grey frame, dark grey curtains |
| Overall Dimensions | 300L x 300W x 278H cm |
| Eaves Height | 206 cm |
| Column Spacing | 254L x 254W cm |
| Frame Material | Powder-coated aluminium |
| Roof Material | 6mm translucent polycarbonate — UV-protective, water-resistant |
| Curtain Material | Polyester |
| Mosquito Net Material | Nylon |
| Product Weight | 52 kg |
| Assembly Time | 2–3 hours |
| People Required | 2–4 recommended |
| Number of Boxes | 2 |
| Warranty | 1 year — parts and manufacturer defects only |
Assembly & Setup
Download Assembly Instructions (PDF)What's in the Box
- 1 x Hardtop gazebo frame and roof panels
- 4 x Side curtains
- 4 x Mosquito nets
- 8 x Ground stakes
- 8 x Expansion screws
- 1 x Instruction manual
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 30 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
In most cases, no — this gazebo falls under permitted development rights and does not require planning permission. However, rules can vary depending on your property type, location, or local council restrictions. We always recommend checking with your local council if you're unsure, particularly if you live in a conservation area or a listed building.
Assembly typically takes 2–3 hours and is recommended with 2–4 people. The gazebo comes with a full instruction manual to guide you through the process. Having extra hands makes it significantly easier to hold the frame sections in place while securing the roof panels.
Yes — the gazebo can be installed on any surface. On hard surfaces such as concrete or paving, use the included expansion screws. On grass or soil, use the included ground stakes. If you're installing on timber decking, we recommend using specialist wood expansion screws to avoid splitting the boards.
The 6mm polycarbonate roof panels are water-resistant and will provide reliable shelter in light to moderate rain. The panels are also UV-protective and translucent, allowing natural light to filter through while keeping the elements out. The gazebo is not designed for use in heavy rain, strong wind, or snow conditions.
The gazebo is covered by a 1-year manufacturer's warranty on parts, covering manufacturing defects. This does not cover damage caused by weather events, improper assembly, or general wear and tear. If you have a warranty query, please contact our customer support team with your order details.
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
- 30-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