


Gradwell Group Building Products
Balance 10' x 20' Greenhouse - Silver Aluminium Frame & Hybrid Polycarbonate Panels
When we tell you that the Canopia Balance Greenhouse Kits provide your plants with the optimal conditions for nurture and growth, we mean it.
With two types of glazing, you get a balanced DIY greenhouse that combines the protection of the diffused twin-wall roof panels with the light transmission of the crystal-clear wall panels for ideal growing conditions. All panels are made of UV-protected polycarbonate, a glass-like, virtually unbreakable high-end polymer that is uniquely suited for greenhouses.
The extra-large workspace gives you plenty of room to grow an abundance of vegetables and herbs and store the tools and accessories you need. The Balance Greenhouse is also extremely accessible with wide and tall double doors and a low threshold for wheelbarrows to go in and out and enough room to transfer large trays of plants. The lockable door has an aluminium hinge that works as well in frost as it does in heat, so it never gets stuck like a sliding door.
Made of 100% recycled materials, the combination of the safe polycarbonate panels with the rust-resistant, aluminium frame and extra strong support beams provides you with a greenhouse that is well-designed and durable, so you never have to worry about the sturdiness or safety of your greenhouse.
For a beautiful, well-designed, and spacious addition to your gardening experience, get a Balance backyard Greenhouse today!
- Extra Large Design: The greenhouse has plenty of space to move around in as well as go in and out.
- Durable Structure: Powder-coated aluminium frame is a strong and rust-resistant metal
- Extra Support: Includes internal support beams and a galvanized steel base for added strength and stability
- Polycarbonate: The resilient panels are 100% UV protected, virtually unbreakable and do not turn yellow or become brittle over time
- Diffused Roof Panels: 4 mm twinwall roof panels protect from strong sunlight exposure and extend your season by protecting plants from Fall frosts.
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Clear Wall Panels: Crystal-clear side panels provide over 90% light transmission
Year-Round Weather Resistance: Wind, snow, and hail resistant. Withstands winds up to 56 mph / 90 kmh and 15 lbs/ft² / 75 kg/m² of snow. - Door Features: Low threshold ramp for easy access as well as lockable, aluminium, hinged double doors that are high (6’6? / 199 cm) and wide.
- Ventilation: Manual roof windows allow adjustment of humidity, temperature, and ventilation, and keep you cooler on hot days.
- Gutter: Includes a built-in gutter system to channel and easily collect rainwater
- DIY Assembly: Sliding panel system includes pre-drilled profiles, pre-cut sliding panels for easy installation
- Available Accessories: Fan heater, lighting kits, shade cloth kit, automatic roof vent opener, staging and shelving, plant hangers, trellising kit, and drip irrigation kit are all available for purchase separately.
- Warranty: 5-Year Limited Warranty
About this product
Dimensions
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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.