


Gradwell Group Building Products
Grand Gardener 8' x 8' Greenhouse - Green Aluminium Frame & Hybrid Polycarbonate Panels
Never settle for ordinary, the Grand Gardener Greenhouse features a chic barn shape and a windowpane design giving you a gorgeous background for all your plants.
The emphasis on greenhouse safety is evident from the heavy-duty frame to the extremely safe polycarbonate panels. The sturdy, weather-resistant and UV-protected extruded resin frame with its aluminium roof profiles improves both full-insulation and durability. The diffused roof panels are made of 4mm twin-wall polycarbonate, which allows the light to reach your plants at all angles for more even sunlight and growth while preventing plant burn. The side panels are translucent polycarbonate, providing over 90% light transmission while blocking harmful UV rays.
The attention to detail continues through the greenhouse design of the roof which provides ample headroom and more space to the garden to the double doors that make it easy to go in and out, even with large trays of plants. There is also excellent ventilation due to the roof vent, which provides airflow and retains heat when the doors are closed.
We keep it simple with a pin and lock assembly making the Grand Gardener DIY Greenhouse perfect for the growing enthusiast who wants something easy and beautiful!
- Extra-large, highly resistant, no-tool assembly, safe polycarbonate greenhouse
- An extra-high ceiling provides an extremely comfortable working environment inside the greenhouse.
- Built with heavy-duty multi-wall glazing for controlled light exposure and greater insulation
- Allows maintaining level temperatures and diffuse sunlight
- Provides up to 100% protection from harmful sun rays (UV)
- Life-time resilient polycarbonate plastic walls; do not fracture, turn yellow or opacify over time.
- Easy-to-assemble, DIY greenhouse, sturdy UV protected resin frame, held together with ‘Pin & Lock’ resin connectors.
- Stylish, classic barn shape design, developed for optimal use of the interior space
- Built-to-last thanks to outstandingly durable materials
- Maintenance-free greenhouse
- Protects your plants from the elements so that you can enjoy an extended growing period.
- Technical information, including dimensions, panel thickness, and wind and snow load, can be found in the photo gallery above.
About this product
Dimensions
Collapsible row
About Gradwell Group Building Products
At Gradwell Group Building Products, we’re proud to be one of the UK’s trusted suppliers of high-quality outdoor living and construction solutions. With over 20 years of experience, we offer a carefully curated range of products—designed to combine long-lasting performance with stylish design.
Whether you’re looking for reliable shelter, low-maintenance roofline systems, or modern garden structures, we have a solution to suit every project. Our expert team provides honest advice, fast UK-wide delivery, and friendly customer support from start to finish.
Join thousands of homeowners, tradespeople, and developers across the UK who choose Gradwell Group for dependable products at competitive prices. Explore our full range today and experience quality you can count on.

Why Choose Gradwell Group Building Products?
✅ Trusted UK supplier with 20+ years of industry experience
✅ High-performance products built for British weather
✅ Wide range of styles, sizes, and custom options
✅ Nationwide delivery with installation support available
✅ Excellent customer service from our friendly, expert team
Frequently Asked Questions
1. Do your products come with a warranty?
Yes, all Gradwell Group products come with a manufacturer’s warranty for your peace of mind. Warranty periods vary depending on the product type, but most of our aluminium and GRP ranges offer 10–25 years of coverage against structural defects, corrosion, or weathering.
2. Can you deliver anywhere in the UK?
Absolutely. We offer UK-wide delivery on all products, including large or heavy items such as carports, patio covers, and conservatories. Delivery times may vary based on location and product availability, but we’ll always keep you updated every step of the way.
3. Do I need planning permission for your products?
In most cases, our products do not require planning permission—especially for carports, door canopies, patio covers, and roofline items. However, we always recommend checking with your local planning authority for large installations or if you live in a conservation area or listed building. Our team can provide specifications to assist with your application if needed.
4. Can I install the product myself or do I need a professional?
For larger structures like aluminium carports or lean-to conservatories, we recommend using a qualified installer for best results. We can also arrange professional installation services through our trusted partners.
5. How do I choose the right size or style for my property?
Our team is here to help! If you’re unsure which product suits your space, simply get in touch with us. We can guide you through measurements, fitting options, and customisation features to ensure you get the perfect fit—whether it’s for your garden, driveway, or roofline.